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Our more than 90 board-certified veterinary specialists and pathologists are always available for complimentary consultation. And while we do not operate clinics or compete with your business like some other outside labs, we are practicing veterinarians and academicians with specialized expertise in animal care. We’re here to help with:

  • Complimentary internal medicine consultations
  • Access to clinical and anatomic pathologists
  • Field consultant support for product demonstrations and staff training
  • Superior laboratory customer support

Committed to delivering accuracy and more

Avian & Exotic | Dermatology | Oncology | Internal Medicine 

*Indicates the specialist is double-boarded
†Indicates the specialist is a contractor
 
Avian & Exotic Medicine 

 

(U.S. and Canada)

 

Tarah Hadley†, DVM, DABVP

Certified in Avian Practice

Area(s) of Interest: certified in avian practice

Dr. Hadley received her DVM in 2002 from Tufts University. After graduation, she completed a small-animal medicine and surgery internship at Rowley Memorial Animal Hospital in Massachusetts. In 2006, she completed a residency at the University of Tennessee where she was trained in avian, exotic and zoological medicine and surgery. Dr. Hadley is certified in avian practice by the American Board of Veterinary Practitioners. She previously worked as a member of the veterinary staff at Zoo Atlanta and continues to work in private practice in Atlanta. She also serves as executive director of the AWARE Wildlife Center in Atlanta.

 

Vickie Joseph†, DVM, DABVP

Certified in Avian Practice

Area(s) of Interest: certified in avian practice

Dr. Joseph received her DVM from the University of California, Davis, in 1983. She completed her small-animal medicine and surgery internship with the Sacramento Animal Medical Group. Dr. Joseph has been in private practice since 1983 and has consulted on avian/exotic medicine for IDEXX since 1990. She is board-certified by the American Board of Veterinary Practitioners. Dr. Joseph is extremely active in wildlife medicine and is president of the California Foundation for Birds of Prey, a nonprofit organization dedicated to the conservation of raptors.

 

 

Dermatology 

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(U.S. and Canada)

 

Terri Bonenberger, DVM, DACVD

Dermatologist

Area(s) of Interest: dermatology

Dr. Bonenberger is a graduate of Texas A&M University College of Veterinary Medicine and completed a 2-year residency and 1-year clinical fellowship in dermatology at the University of California, Davis. She became a diplomate of the American College of Veterinary Dermatology in 2000. Since completion of her residency, Dr. Bonenberger has practiced full-time as a clinical dermatologist in private practice. She has authored numerous articles on small-animal dermatology and gives continuing education lectures to fellow veterinarians. Dr. Bonenberger currently provides consultation services for veterinarians in the United States, Canada and the United Kingdom. She is actively involved in the American College of Veterinary Dermatology and the International Society of Veterinary Dermatopathology.

 

Elizabeth Carsten, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, dermatology

Dr. Carsten graduated from Colorado State University College of Veterinary Medicine and Biomedical Sciences in 1994. She completed a small-animal internship the following year at the University of Minnesota, followed by an internal medicine residency and nutrition fellowship at Texas A&M University. She has been board-certified in small animal internal medicine since 1999. After completing her residency, Dr. Carsten was a staff internist at two busy private referral hospitals in Arizona. She has been an internal medicine consultant with IDEXX since 2002, and is now a manager for the U.S. Internal Medicine Consulting Service. 

 

Kristi L. Graham, DVM, MS, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, dermatology

Dr. Graham received her DVM from Purdue University. She followed it with an internship at Washington State University and finished her training at Atlantic Veterinary College (AVC) of the University of Prince Edward Island, completing an MS and an internal medicine residency. Board-certified in small-animal internal medicine in 2005, Dr. Graham then returned to Indiana and practiced internal medicine for 8 years. She taught in Purdue’s Veterinary Technology Program and has periodically provided clinical support in the teaching hospital at AVC as a visiting instructor. She has served as chair of the continuing education committee for the Indiana Veterinary Medical Association for several years. Dr. Graham joined IDEXX as a consultant in 2011.

 

Bettina Mayer-Roenne, DrMedVet, DACVIM

Internal Medicine Specialist

Area(s) of interest: internal medicine, dermatology

Dr. Mayer-Roenne received her veterinary degree from the University of Veterinary Medicine in Vienna, Austria. She completed an internship at Cornell University, and a small animal internal medicine residency at Louisiana State University. Dr. Mayer-Roenne has worked with veterinary patients in Austria, Germany, Australia, Sri Lanka and the United States. She is board-certified in small-animal internal medicine. Dr. Mayer-Roenne was in private practice in Florida, prior to joining IDEXX as an Internal Medicine Consultant in 2011.

 

Vicki J. Scheidt, DVM, DACVD

Dermatologist, Canada and U.S.

Vicki received her veterinary degree from the College of Veterinary Medicine at the University of Missouri in 1978. Following graduation, she was employed as a staff veterinarian in a small animal hospital in Warwick, Rhode Island. After two years in practice, she returned for advanced training and completed a residency in veterinary dermatology at the University of Pennsylvania. She has been board certified in veterinary dermatology since 1984. Following her residency, Vicki was an assistant professor in dermatology at North Carolina State University for 5 years prior to moving to Hanover, New Hampshire, to work in private practice. She joined IDEXX as a consultant in dermatology in 2013.

 

Jennifer Steele, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, dermatology

Dr. Steele graduated from the Western College of Veterinary Medicine at the University of Saskatchewan in Canada in 1997, followed by an internship at the University of Minnesota. After a short time working in general practice, Dr. Steele completed her residency training in small-animal internal medicine at the University of Wisconsin–Madison. She then worked at the University of Minnesota Veterinary Medical Center as an assistant clinical professor and in private practice in northwestern Illinois before joining IDEXX as an internal medicine consultant in 2005.

 

 

Oncology 

(U.S. and Canada)

 

Raquel Brown*, DVM, DACVIM

Oncology and Internal Medicine Specialist

Area(s) of Interest: internal medicine, oncology

Dr. Brown received her veterinary degree from Texas A&M University in 1995. She then practiced in Houston as a general practitioner and emergency veterinarian. She returned to Texas A&M in 1998 for advanced training, which included a small-animal internship, a residency in small-animal internal medicine and a residency in oncology. She is board-certified in both oncology and small-animal internal medicine. Dr. Brown has worked in private referral practices in Texas and served as an adjunct professor at Texas A&M University. She joined IDEXX as a consultant in 2009.

 

Kelly Chaffin*, DVM, MSpVM, DACVIM

Oncology and Internal Medicine Specialist

Area(s) of Interest: internal medicine, oncology

Dr. Chaffin received her veterinary degree from Texas A&M University in 1994. She then completed an internship and small animal internal medicine residency at the University of Georgia. Following completion of the internal medicine residency, Dr. Chaffin next completed an oncology residency at North Carolina State University. She is board-certified in both oncology and small-animal internal medicine. Dr. Chaffin worked in private referral practices in Texas and California for 12 years prior to joining IDEXX as a consultant in 2012.

 

Charlotte Davies, MA, VetMB, CertVA, MS, MRCVS, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, oncology

Dr. Davies received her veterinary degree from the University of Cambridge in 1990 and spent 2 years working in the university’s anesthesia department. She completed a rotating internship in small-animal medicine and surgery at the University of Georgia and a residency in internal medicine at the Virginia-Maryland Regional College of Veterinary Medicine, where she then served as a clinical instructor. Dr. Davies was in private practice at a small-animal referral practice in Richmond, Virginia, for 11 years before joining IDEXX as a consultant in 2009.  

 

Shannon Parsons, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, oncology

Dr. Parsons obtained her DVM in 1997 from University of Illinois College of Veterinary Medicine. She completed an internship at New York City’s Animal Medical Center, and a residency in small-animal internal medicine at the University of Pennsylvania. Dr. Parsons was board-certified by the American College of Veterinary Internal Medicine in 2002. She operated a veterinary internal medicine mobile service for several years in southwestern Montana and joined IDEXX Laboratories as a consultant in 2005. 

 

Elizabeth Schooley, DVM, MS, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, oncology

Dr. Schooley received her DVM from Colorado State University in 2003. She performed an internship at the Animal Medical Center in New York City and continued on to a residency in small-animal internal medicine at the University of Missouri. While there, she obtained a master’s degree in biomedical science. She worked in a private practice in Virginia for 3 years prior to joining IDEXX in 2010.

 

 

Internal Medicine 

(U.S. and Canada)

 

Raquel Brown*, DVM, DACVIM

Oncology and Internal Medicine Specialist

Area(s) of Interest: internal medicine, oncology

Dr. Brown received her veterinary degree from Texas A&M University in 1995. She then practiced in Houston as a general practitioner and emergency veterinarian. She returned to Texas A&M in 1998 for advanced training, which included a small-animal internship, a residency in small-animal internal medicine and a residency in oncology. She is board-certified in both oncology and small-animal internal medicine. Dr. Brown has worked in private referral practices in Texas and served as an adjunct professor at Texas A&M University. She joined IDEXX as a consultant in 2009.

 

Elizabeth Carsten, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, dermatology

Dr. Carsten graduated from Colorado State University College of Veterinary Medicine and Biomedical Sciences in 1994. She completed a small-animal internship the following year at the University of Minnesota, followed by an internal medicine residency and nutrition fellowship at Texas A&M University. She has been board-certified in small animal internal medicine since 1999. After completing her residency, Dr. Carsten was a staff internist at two busy private referral hospitals in Arizona. She has been an internal medicine consultant with IDEXX since 2002, and is now a manager for the U.S. Internal Medicine Consulting Service. 

 

Kelly Chaffin*, DVM, MSpVM, DACVIM

Oncology and Internal Medicine Specialist

Area(s) of Interest: internal medicine, oncology

Dr. Chaffin received her veterinary degree from Texas A&M University in 1994. She then completed an internship and small animal internal medicine residency at the University of Georgia. Following completion of the internal medicine residency, Dr. Chaffin next completed an oncology residency at North Carolina State University. She is board-certified in both oncology and small-animal internal medicine. Dr. Chaffin worked in private referral practices in Texas and California for 12 years prior to joining IDEXX as a consultant in 2012.

 

Celeste Clements, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. Clements graduated from the University of Florida College of Veterinary Medicine in 1989, and then did a 1-year internship at the Animal Medical Center in New York City. After 2 years of general practice, she entered into a clinical residency in small-animal internal medicine at Texas A&M University, which concluded with her board certification in 1995. She practiced for 5 years in referral centers in Maryland and Texas, and was employed by a veterinary pharmacy. She joined IDEXX as a consultant in 2007.

 

Charlotte Davies, MA, VetMB, CertVA, MS, MRCVS, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, oncology

Dr. Davies received her veterinary degree from the University of Cambridge in 1990 and spent 2 years working in the university’s anesthesia department. She completed a rotating internship in small-animal medicine and surgery at the University of Georgia and a residency in internal medicine at the Virginia-Maryland Regional College of Veterinary Medicine, where she then served as a clinical instructor. Dr. Davies was in private practice at a small-animal referral practice in Richmond, Virginia, for 11 years before joining IDEXX as a consultant in 2009.  

 

Robert M. DuFort, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: small animal medicine, large animal medicine, laboratory medicine

Dr. DuFort received his DVM from the University of California, Davis, in 1980. He completed an internship in small-animal medicine and surgery at the Sacramento Animal Medical Group, followed by a small-animal internal medicine residency at Cornell University and a residency in clinical pathology, microbiology and pathology at the University of California, Davis. He joined Consolidated Veterinary Diagnostics as chief clinical pathologist and was the clinical laboratory director for 10 years. He has contributed articles to the last several editions of the Textbook of Veterinary Internal Medicine.

 

Corinne D. Fabrick, DVM, DACVIM

Internal Medicine Specialist

Area(s) of interest: internal medicine

Dr. Fabrick graduated from the University of Wisconsin-Madison School of Veterinary Medicine in 2005. She then completed a small-animal internship and small-animal internal medicine residency at Texas A&M University from 2005–2009. She has been board-certified in small-animal internal medicine since 2009. Following her residency, Dr. Fabrick moved to Boulder, Colorado to work at a new specialty practice. She joined IDEXX as a consultant in 2012. 

 

Kristi L. Graham, DVM, MS, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, dermatology

Dr. Graham received her DVM from Purdue University. She followed it with an internship at Washington State University and finished her training at Atlantic Veterinary College (AVC) of the University of Prince Edward Island, completing an MS and an internal medicine residency. Board-certified in small-animal internal medicine in 2005, Dr. Graham then returned to Indiana and practiced internal medicine for 8 years. She taught in Purdue’s Veterinary Technology Program and has periodically provided clinical support in the teaching hospital at AVC as a visiting instructor. She has served as chair of the continuing education committee for the Indiana Veterinary Medical Association for several years. Dr. Graham joined IDEXX as a consultant in 2011.

 

Sophie A. Grundy, BVSc(Hons), MANZCVSc, DACVIM

Internal Medicine Specialist

Area(s) of interest: internal medicine, reproduction

Dr. Grundy received her veterinary degree from the University of Queensland, Australia in 1997. After working in private practice, she moved to the United States and completed an internship at Texas A&M University, followed by residencies in small-animal internal medicine and theriogenology at the University of California, Davis. Following her training, Dr. Grundy pursued postgraduate studies with the Department of Population Health and Reproduction at the University of California, Davis. Dr. Grundy has worked in private specialty practice intermittently since 2006, and joined IDEXX as an Internal Medicine Consultant in 2012.

 

Kristen Hibbetts*, DVM, DACVIM, DACVECC

Emergency/Critical Care and Internal Medicine Specialist

Area(s) of Interest: internal medicine, emergency and critical care

Dr. Hibbetts is a 1994 graduate of Texas A&M College of Veterinary Medicine. Her small-animal internship at the Animal Medical Center in New York City was followed by a residency in small-animal internal medicine at Purdue University. After certification, she was a clinical instructor at the University of Pennsylvania while also completing a residency in emergency and critical care. Dr. Hibbetts joined IDEXX as an internal medicine consultant in 2000 and is currently senior manager of the internal medicine consulting service for IDEXX Reference Laboratories.

 

Natalee Holt, DVM, DACVIM

Internal Medicine Specialist, Canada and U.S.

 

Area(s) of interest:  internal medicine

Dr. Holt received her veterinary degree from Kansas State University in 2007. She completed an internship at Colorado State University, followed by a small-animal internal medicine residency at Tufts University. She has been boarded in small-animal internal medicine since 2011. Dr. Holt worked in private practice in New Hampshire for almost 2 years prior to joining IDEXX in 2013.

 
 

 

James Hummel DVM, DACVIM

Internal Medicine Specialist

 

Peter Kintzer, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, endocrinology

Dr. Kintzer received his DVM from Cornell University. He completed an internship at the Animal Medical Center in NYC, then an internal medicine residency at Tufts Veterinary School. He is a board certified in veterinary internal medicine. Dr. Kintzer was on staff at Tufts for 5 years, followed by many years as an internist in specialty hospitals in New England. He has been a key opinion leader for IDEXX since 1995 and has worked for IDEXX since 2010. Dr. Kintzer lectures nationally and internationally on small-animal endocrine and internal medicine disorders and his many published articles and chapters focus on canine and feline endocrinology. 

 

Patricia Kull, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. Kull received her DVM from Cornell University College of Veterinary Medicine in 1997 and completed a 1-year internship in small-animal medicine and surgery at the University of Minnesota, followed by a 2-year residency at the University of Pennsylvania (UPenn). Following her residency, she stayed at UPenn as an instructor, becoming board-certified in small-animal internal medicine in 2001. She worked in private practice in New York City for 1 year and in Maryland for 3½ years. She joined IDEXX in 2006 as an internal medicine consultant.

 

Paige Langdon, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. Langdon graduated from the Virginia-Maryland Regional College of Veterinary Medicine in 1997. She performed an internship the following year at Washington State University, followed by an internal medicine residency at the University of Missouri–Columbia. After completing her residency, she remained at the university as a clinical instructor for 1 year. She was subsequently employed as a staff internist at a specialty hospital outside Richmond, Virginia, for 8 years. Dr. Langdon is board-certified in small-animal internal medicine. She joined IDEXX as a consultant in 2010.

 

Linda Matros, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. Matros received her DVM from Texas A&M University. She worked at a general private practice and then at an emergency hospital. She completed her residency in internal medicine at Iowa State University and then established a referral practice in Carson City, Nevada, in 1993. Dr. Matros is board-certified in internal medicine by the American College of Veterinary Internal Medicine. She has been a consultant with IDEXX Laboratories since 1996. 

 

Bettina Mayer-Roenne, DrMedVet, DACVIM

Internal Medicine Specialist

Area(s) of interest: internal medicine, dermatology

Dr. Mayer-Roenne received her veterinary degree from the University of Veterinary Medicine in Vienna, Austria. She completed an internship at Cornell University, and a small animal internal medicine residency at Louisiana State University. Dr. Mayer-Roenne has worked with veterinary patients in Austria, Germany, Australia, Sri Lanka and the United States. She is board-certified in small-animal internal medicine. Dr. Mayer-Roenne was in private practice in Florida, prior to joining IDEXX as an Internal Medicine Consultant in 2011.

 

Shannon Parsons, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, oncology

Dr. Parsons obtained her DVM in 1997 from University of Illinois College of Veterinary Medicine. She completed an internship at New York City’s Animal Medical Center, and a residency in small-animal internal medicine at the University of Pennsylvania. Dr. Parsons was board-certified by the American College of Veterinary Internal Medicine in 2002. She operated a veterinary internal medicine mobile service for several years in southwestern Montana and joined IDEXX Laboratories as a consultant in 2005. 

 

Lisa Paull, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. Paull received her veterinary degree from the Virginia-Maryland Regional College of Veterinary Medicine in 1996, and completed a small animal internship at the University of Minnesota in 1997. Afterward, she spent 3 years in Indiana completing a small animal internal medicine residency at Purdue University and became board certified in 2004. Dr. Paull practiced at a busy 24-hour referral practice in New Jersey before joining IDEXX as a consultant in 2003. After 9 years of consulting, Dr. Paull revisited clinical medicine and practiced for a period of time in Virginia before returning to IDEXX as a consultant in 2013.

 

Barrak M. Pressler, DVM, PhD, DACVIM

Internal Medicine Specialist

Area(s) of interest: internal medicine, nephrology

Dr. Pressler received his veterinary degree in 1999 from the University of California, Davis, and then completed an internship in small animal medicine and surgery and a residency in small animal internal medicine at North Carolina State University. Dr. Pressler has been board-certified in small animal internal medicine since 2003 and was awarded a PhD in immunology in 2008. He was an assistant professor of small animal internal medicine at Purdue University (2006–2011) and The Ohio State University (2011–2013) and is the author or collaborator on numerous scientific studies and textbook chapters. His areas of interest are internal medicine and nephrology.

 

Liberty Rasor, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. Rasor earned a DVM at Colorado State University, graduating in 2000. She completed a small-animal internship at the Veterinary Specialty Hospital of San Diego and a 3-year residency in small-animal internal medicine at the University of California, Davis. Dr. Rasor is board-certified in small-animal internal medicine. She worked in a specialty hospital in Arizona before joining IDEXX as an internal medicine consultant in 2007. 

 

Roberta L. Relford*, DVM, MS, PhD, DACVIM, DAVCP

Division Vice President of Pathology, Internal Medicine and Strategic Operations IDEXX Reference Laboratories

Area(s) of Interest: internal medicine, coagulation, cytology, kidney disease

Dr. Relford graduated from Auburn University in 1982 and was a small-animal practitioner for 4 years. She obtained an MS in pathology at Mississippi State University and a PhD in pathology from Texas A&M University, where she
also pursued a residency in small-animal internal medicine. Dr. Relford is board-certified in internal medicine by the American College of Veterinary Internal Medicine and in clinical pathology by the American College of Veterinary Pathologists. She lectures on various topics including clinical pathology, internal medicine, infectious diseases, cytology and platelet disorders.   

 

Jane Robertson, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. Robertson received her DVM from the Ontario Veterinary College at the University of Guelph in Canada in 1992. She worked in mixed-animal and small-animal practice before completing a small-animal internship at the same institution in 1994. She completed her medicine residency at University of California, Davis, and became
board-certified by the American College of Veterinary Internal Medicine in 1998. She practiced in a busy referral hospital before joining IDEXX as a medicine consultant in 2000. Dr. Robertson is currently Head of North America and Europe Internal Medicine. She enjoys speaking about endocrinology, renal disease, pancreatitis and the clinical utility of real-time PCR.

 

Chris Rollings, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. Rollings received his DVM degree from Tufts University in 2000 and completed his small-animal medicine and surgery rotating internship at Colorado State University the following year. He then spent 2 years in a small-animal internal medicine residency at the University of Pennsylvania, finishing in 2003, and pursued training in nephrology/hemodialysis at the University of California, Davis, for an additional year. Dr. Rollings then accepted a 1-year lectureship at the University of Pennsylvania before becoming a staff internist at Angell Animal Medical Center of Boston, where he had been practicing for 6 years until joining IDEXX as a consultant in 2011. 

 

Nancy A. Sanders*, DVM, DACVIM, DACVECC

Emergency/Critical Care and Internal Medicine Specialist

Areas of interest: internal medicine, emergency and critical care

Dr. Sanders received her veterinary degree from The Ohio State University in 1991. She then completed an internship and internal medicine residency at the University of Pennsylvania. Following her residency, Dr. Sanders remained on staff at the University of Pennsylvania for several years, before venturing out into private practice in New Jersey and then Maryland. While in practice in New Jersey, she completed a residency in emergency and critical care medicine. Dr. Sanders is board-certified in both small-animal internal medicine and emergency and critical care medicine. She has worked in the university, in industry, for the NIH, and most predominantly in private practice over the 15 years prior to joining IDEXX as an Internal Medicine Consultant in 2012.

 

William Saxon*, DVM, DACVIM, DACVECC

Emergency/Critical Care and Internal Medicine Specialist

Area(s) of Interest: internal medicine, emergency and critical care

Dr. Saxon received his DVM from Iowa State University in 1986. He completed his internship at the Animal Medical Center (AMC) in New York City and residencies at the AMC and the University of Pennsylvania. He practiced in the San Francisco area until 2007 and owned an intensive-care unit in a specialty referral practice in Washington, DC. He has been an IDEXX Reference Laboratories internal medicine consultant since 1997. Dr. Saxon is a coauthor of Manual of Small Animal Emergency and Critical Care Medicine and has authored articles on cardiomyopathy, acute abdomen disease, drug toxicities and burn injury.

 

Elizabeth Schooley, DVM, MS, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, oncology

Dr. Schooley received her DVM from Colorado State University in 2003. She performed an internship at the Animal Medical Center in New York City and continued on to a residency in small-animal internal medicine at the University of Missouri. While there, she obtained a master’s degree in biomedical science. She worked in a private practice in Virginia for 3 years prior to joining IDEXX in 2010.

 

M. Alexis Seguin, DVM, MS, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. Seguin attended Cornell University as an undergraduate and then obtained her master’s degree and DVM at the University of Wisconsin–Madison in 1996 and 1998, respectively. She completed a rotating, small-animal medicine and surgery internship at North Carolina State University, followed by a 3-year residency in small-animal internal medicine at the University of Florida. She became board-certified in 2002. She spent 2 years in private specialty practice, first in Mesa, Arizona, and then in Wisconsin. She has been with IDEXX Laboratories since 2004.

 

Jennifer Steele, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine, dermatology

Dr. Steele graduated from the Western College of Veterinary Medicine at the University of Saskatchewan in Canada in 1997, followed by an internship at the University of Minnesota. After a short time working in general practice, Dr. Steele completed her residency training in small-animal internal medicine at the University of Wisconsin–Madison. She then worked at the University of Minnesota Veterinary Medical Center as an assistant clinical professor and in private practice in northwestern Illinois before joining IDEXX as an internal medicine consultant in 2005.

 

Cindy Stubbs, DVM, MS, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. Stubbs received her veterinary degree from North Carolina State University in 1995. She completed an internship at Texas A&M University followed by a small animal internal medicine residency at Colorado State University. Dr. Stubbs has been board-certified in small animal internal medicine since 1999. While at CSU, she also received a Master of Science in Clinical Sciences. Dr. Stubbs then worked in private practice in Atlanta, Georgia for almost 2 years prior to owning her own internal medicine practice for 7 years. She moved back to North Carolina to be closer to family, and joined IDEXX as a consultant in 2013.

 

Tara K. Trotman, VMD, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. Trotman received her veterinary degree from the University of Pennsylvania in 2000. She then completed an internship and internal medicine residency at the University of Pennsylvania, and has been board-certified in small-animal internal medicine since 2005. Following her residency, Dr. Trotman remained a staff internist at the University of Pennsylvania for several years. She worked in a private specialty hospital outside of Philadelphia before joining IDEXX as an Internal Medicine Consultant in 2012.

 

Ron Vin, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: equine internal medicine

Dr. Vin graduated from the Koret School of Veterinary Medicine at the Hebrew University of Jerusalem in 1996. Following his training in internal medicine, he was board-certified as a diplomate of the American College of Veterinary Internal Medicine. Since his residency, Dr. Vin has been a provider of referral diagnostic services to equine practitioners throughout New England and continues to be the director at a private equine hospital. He has lectured nationally and internationally and has authored or coauthored articles in several scientific journals. Dr. Vin has been consulting for IDEXX since 2010.

 

Benita von Dehn, DVM, DACVIM

Internal Medicine Specialist

Area(s) of Interest: internal medicine

Dr. von Dehn received her DVM from Colorado State University in 1989. She completed a small-animal internship at the Animal Medical Center in New York City, followed by a small-animal medicine residency at the University of California, Davis. She then spent several months at the University of Utrecht Veterinary Hospital in the Netherlands. In 1996, she became a diplomate of the American College of Veterinary Internal Medicine. She has been a part-time medical consultant since 1995, and has been on the consulting staff at IDEXX since 1997. Dr. von Dehn continues to work as a small-animal internist in private practice in northern California.

 

Linda Werner*, DVM, PhD, DACVIM, DACVP

Clinical Pathologist, West Sacramento, CA

Area(s) of Interest: hematology, cytology, immunology, laboratory medicine

After receiving her DVM from The Ohio State University in 1974, Dr. Werner completed an internship at the Animal Medical Center in New York City and an internal medicine residency at the University of California, Davis (UCD). She was director of the clinical immunology laboratory at the University of Florida until 1985, when she returned to UCD to pursue a PhD in comparative pathology, joining the UCD veterinary pathology department in 1990 and IDEXX in 1996. Dr. Werner is board-certified in clinical pathology by the American College of Veterinary Pathologists and by the American College of Veterinary Internal Medicine. She has authored more than 60 publications, presented a number of research abstracts and been invited to lecture on topics including clinical immunology, retroviral immunology and hematology.

 

Susan Yohn*, DVM, MS, DAVBP, DACVIM

Internal Medicine Specialist

Area(s) of interest: internal medicine

Dr. Yohn received her veterinary degree from Iowa State University in 1982. She practiced for several years in New Jersey and Illinois before completing a small animal internal medicine residency at Purdue University. She has been board-certified in small-animal internal medicine since 1994. Dr. Yohn worked in private referral hospitals for 16 years before joining IDEXX as an Internal Medicine Consultant in 2011.

 

Committed to delivering accuracy and more

Quality and accuracy are critical when your patients are depending on you for help. Our pathology and specialist staff is committed to providing the services you need and more.

Anatomic Pathology
 

Shannon Johnson, BSc, DVM, MVSc, DACVP

Anatomic Pathologist, Markham, ON

Dr. Johnson received her BSc from the University of Saskatchewan in 1999 and her DVM from the Western College of Veterinary Medicine (WCVM) in 2003. Following graduation, she completed an internship in small-animal medicine/surgery at the Animal Medical Center in New York City. Following the internship, she returned to WCVM and completed a residency and MVSc in anatomic pathology in 2007. Dr. Johnson attained American College of Veterinary Pathologists board certification in 2007, and she spent the following year in Montreal as a toxicological pathologist. Dr. Johnson joined IDEXX Reference Laboratories in 2009, and her primary interest is surgical pathology. Outside of veterinary medicine, Dr. Johnson enjoys swimming, biking and spending time outdoors with her rambunctious dogs.

 

 

Serena Liu, VMD, MS, DACVP

Anatomic Pathologist, Canada and U.S.

Dr. Liu graduated from Princeton University and the University of Pennsylvania School of Veterinary Medicine, and she completed a residency in anatomic pathology and an MS in comparative pathology at the University of California, Davis. Dr. Liu became a diplomate of the American College of Veterinary Pathologists in 1996. She worked for eight years for IDEXX in West Sacramento, then she returned to New York City and became a staff pathologist at the Animal Medical Center in 2005. While in California, Dr. Liu developed a strong interest in dermatopathology under the mentorship of Dr. Thelma Lee Gross. She has worked as an associate pathologist for the California Dermatopathology Service and built the surgical pathology service at the Animal Medical Center with a focus on dermatopathology as well as oncologic and general surgical pathology. Dr. Liu is a member of the International Society of Veterinary Dermatopathology and the American Academy of Veterinary Dermatology. In her spare time, she enjoys travel, hiking, cooking, exploring New York City, classical music and spending time with her family including her retriever-mix Opie and cat Olivia.

 

Geneviève Remmers, DVM, DACVP

Anatomic Pathologist, Markham, ON

Dr. Remmers received her DVM degree from the University of Montreal in 2008. Following graduation, she completed a residency in anatomic pathology in 2011, at the University of Minnesota. Dr. Remmers attained American College of Veterinary Pathologists board certification in 2011. She is fluent in both French and English and is able to provide Anatomic Pathology consults in both languages. Her interests include, but are not limited to: surgical pathology, bone pathology, and general diagnostic pathology. Outside of veterinary medicine, Dr. Remmers enjoys cooking, travelling, visiting friends and family along with spending time with her two dogs Paco and Lola.

 

 

Ravi Seebaransingh, BVetMed, MRCVS, MSc, DACVP

Anatomic Pathologist, Markham, ON

Area(s) of Interest: Surgical Pathology, Exotic Species

Dr. Ravi Seebaransingh graduated from Royal Veterinary College in London, England in 1991. He worked in mixed practice, both private and government in Trinidad (Caribbean) before pursuing a Masters of Science degree in pathobiology at University of Guelph in 1997. He then returned to Trinidad and worked at the National Veterinary Diagnostic Laboratory for 5 years and subsequently transferred to the School of Veterinary Medicine, University of the West Indies for the past 8 years where he lectured in general and systemic veterinary pathology to DVM students, as well as doing gross and diagnostic pathology on a wide range of species. He became a diplomate of the ACVP in 2009 and joined IDEXX on June 4, 2012. His interests include surgical pathology of domestic and exotic animals. Other interests include photography, hiking, bird watching and tai chi.

 

 

Clinical Pathology
 

Salah Al Izzi, BVMS, MSc, PhD

Clinical Pathologist, Markham, ON

Dr. Al Izzi completed an MSc and PhD in clinical pathology at the Ontario Veterinary College in 1981. Since then, he has served as a faculty member at universities in Baghdad, Khartoum and Tripoli, where he was involved in both diagnostic and teaching responsibilities. He supervised nine MSc and three PhD students and published 40 peer-reviewed scientific papers in international journals. Concurrently, he worked as a diagnostic clinical pathologist in an equine specialty centre from 1988–1994. He joined our Markham laboratory in April 2006. Dr. Al Izzi’s family includes two sons and a daughter. His hobbies are swimming, reading history and travelling.

 

 

Sylvie Beaudin, DVM, DACVP

Clinical Pathologist, Montreal, QC

Dr. Beaudin obtained her DVM from the University of Montreal in 1996. She was a small-animal practitioner for two years before heading down the path of clinical pathology and veterinary diagnostics. She completed her clinical pathology residency at Oklahoma State University in 2003 and became board certified in 2004. She worked for a large diagnostic laboratory in California for almost 2 years and continued on as a contract pathologist for 5 years, out of Montreal. This has afforded her immense experience with cytology cases, an area she particularly enjoys. She also has special interest in noninvasive diagnostic tests (or add-ons that can be done with already available samples). Her hobbies include screenwriting and enjoying the outdoors with her dog, Laika.

 

 

Lily Edwards, DVM, MVSc, DACVP

Clinical Pathologist, Calgary, AB

Dr. Edwards graduated from the Western College of Veterinary Medicine (WCVM) in 1998 and proceeded directly to graduate studies in clinical pathology. In 2001, she joined IDEXX Reference Laboratories and, in 2002, attained American College of Veterinary Pathologists board certification in clinical pathology. Dr. Edwards lives in the suburbs of Calgary with her husband, two young children and two cats.

 

 

Brittney Fierro, DVM, DACVP

Clinical Pathologist, Delta, BC

Brittney received her BS degree from Utah State University in 1999, and was a medical research technician for 5 years before returning to school. She received her DVM degree from Colorado State University in 2008, then completed a Clinical Pathology residency at Michigan State University. Brittney has been a clinical pathologist at IDEXX Laboratories in Johannesburg, South Africa since 2012. In addition to seeing many of the beautiful sights of South Africa, she's enjoyed having interesting cases at work, where she has learned about many of the local wildlife and diseases. Brittney and her husband Allan celebrated their 10th wedding anniversary last year. They have 2 cats who are now veteran world travelers.

 

 

Carrie Flint, DVM, DACVP

Clinical Pathologist, Delta, BC

Dr. Flint was born and raised in southern New Hampshire. She received her BA in biological sciences from Smith College in 1998 and her DVM from the Tufts University School of Veterinary Medicine in 2006. Following graduation, Dr. Flint completed a residency in clinical pathology at Michigan State University in 2009. Dr. Flint is a member of the American Veterinary Medical Association and the American Society for Veterinary Clinical Pathology. Her professional interests include hematology and cytology. Her hobbies include music, computers, television, reading mysteries and spending time with her chocolate Lab, Lily.

 

 

Sonya Keller, DVM, DVSc, DACVP

Clinical Pathologist, Markham, ON

Dr. Keller graduated from the Ontario Veterinary College (OVC) in 2001. She worked as a mixed-animal practitioner in rural Ontario until returning to OVC to complete her DVSc in clinical pathology in 2005. Dr. Keller also completed her board certification with the American College of Veterinary Pathologists in 2005. After graduation, Dr. Keller joined IDEXX Reference Laboratories in Calgary in January 2006 and relocated to the Markham laboratory in 2008. Dr. Keller lives in Maple with her husband Wayne, her son Owen and their two cats. She enjoys biking, hiking, hockey and spending time with her family.

 

 

Tasha Kowalewich, DVM, DACVIM, DACVP

Clinical Pathologist, Delta, BC

Dr. Kowalewich received her DVM from the Western College of Veterinary Medicine in 1988. Following graduation, she completed an internship and residency at Purdue University. In 1992, she attained diplomate status with the American College of Veterinary Internal Medicine, specializing in small animal internal medicine. For seven years, Dr. Kowalewich also owned her own internal medicine consulting service and radioactive iodine unit. She has been with our Delta laboratory for over 13 years and became board certified with the American College of Veterinary Pathologists in 2008. Dr. Kowalewich loves living on the West Coast with her young daughter, dog, cat and hamster. In her spare time she enjoys cooking, skiing and hockey.

 

 

Lynne Marcotte, DVM, DACVP

Clinical Pathologist, Montreal, QC

Dr. Marcotte obtained her DVM from the University of Montreal in 1987, and she then worked as a companion animal practitioner in Quebec City until December 1995. After two years of teaching animal health technicians, she enrolled in the clinical pathology residency program at the Atlantic Veterinary College in 1998. In 2002, she attained board certification from the American College of Veterinary Pathologists. She joined our Montreal team of clinical pathologists in 2005. Her main interests are cytology and hematology. A native of Hull, Dr. Marcotte now lives in Quebec City with her significant other and three adorable children. Dr. Marcotte enjoys outdoor sports (cross-country and downhill skiing, trekking, snowshoeing, cycling), indoor training and travel.

 

 

Cathy Monteith, DVM, MVSc, DACVP

Special Projects Manager, Edmonton, AB

Dr. Monteith received her BS in agriculture from the University of British Columbia in 1985. In 1989 she received her DVM from Western College of Veterinary Medicine (WCVM) at the University of Saskatchewan. After practicing at a mixed-animal practice in Ontario and a small-animal practice on Vancouver Island, she returned to WCVM and received her MVSc in 1993. Following a senior diagnostic fellowship year she was board certified as a clinical pathologist by the American College of Veterinary Pathologists in 1994. She held a temporary faculty position at WCVM and conducted research in lentiviral infections in sheep in 1994–1995. In the winter months she is a rink mom with a daughter in figure skating and a son in minor hockey. In the summer she enjoys fishing and camping at the numerous lakes in central/northern Saskatchewan.

 

Sébastien Overvelde, DVM, MSc, DACVP

National Head of Clinical Pathology, Montreal, QC

A native of Sherbrooke, Quebec, Dr. Overvelde received his DVM from the University of Montreal in 1998 and then worked in a small animal practice in Newport News, Virginia, for three years. He then returned to the University of Montreal to complete a residency in clinical pathology and a master’s degree in veterinary science. Dr. Overvelde attained American College of Veterinary Pathologists board certification in 2004 and joined our Montreal laboratory in November of the same year.

 

 

Heidi Peta, DVM, DACVP

Clinical Pathologist, Edmonton, AB

Dr. Peta received her DVM in 2002 from the Western College of Veterinary Medicine (WCVM) at the University of Saskatchewan. She spent one year in small-animal private practice in Edmonton, Alberta, before returning to WCVM in 2003 to begin a three-year residency in clinical pathology. Her time there was spent performing diagnostic duties, teaching veterinary students and completing a master’s project on GLDH, a liver enzyme, in dogs. After the final year of her residency, Dr. Peta earned American College of Veterinary Pathologists board certification. Before joining IDEXX Reference Laboratories, she worked at a veterinary laboratory near Seattle. Dr. Peta’s professional interests include small-animal endocrinology and aquatic-animal pathology. She has a fondness for fish and other aquatic creatures.

 

Caroline Piché, DVM, IPSAV, DES, MSc, DACVP

Clinical Pathologist, Montreal, QC

Dr. Piché graduated with a DVM from the University of Montreal in 2002, and she completed a one-year internship in small-animal medicine and surgery. She then completed a three-year residency in clinical pathology, at the same time as a master’s degree in veterinary sciences. After graduating 2007, Dr. Piché worked as a clinical pathologist at the diagnostic laboratory of the University of Montreal. She joined IDEXX Reference Laboratories in June 2008 and has a great interest in cytology, hematology and exotic animals.

 

 

Tanya Stirtzinger, DVM, PhD

Clinical Pathologist, Markham, ON

Dr. Stirtzinger received her DVM in 1976 from the University of Guelph. After graduation, she worked in a mixed-animal practice and then returned to Guelph in 1977, where she worked in the Ontario government’s diagnostic laboratory. She returned to the University of Guelph, completing a diploma in clinical pathology in 1978 and a PhD in 1985, at which time she joined the faculty of the Department of Pathology at the Ontario Veterinary College. Dr. Stirtzinger joined our Markham laboratory in 1995. Her special interests include diagnostic cytology, infectious diseases and the development and evaluation of laboratory diagnostic tests for the veterinary profession. During her career she and her husband raised three children and have recently become proud grandparents. Although diagnostic clinical pathology remains her most compelling interest, she also enjoys other activities, including cooking, gardening and breeding and training horses.

 

Emmeline Tan, DVM, DVSc, DACVP

Clinical Pathologist, Markham, ON

Dr. Tan received her DVM from the Ontario Veterinary College in 2000, and was in companion animal/emergency practice for 5 years in the Pacific Northwest before returning to complete a DVSc in clinical pathology in the Department of Pathobiology, OVC. She became a Diplomate of the ACVP (clinical pathology) in 2009. From 2009-2013, Dr. Tan worked in the Department of Pathobiology, teaching clinical pathology to veterinary students, mentoring pathology graduate students, and performing diagnostic work for OVC Health Sciences Centre cases. Dr. Tan joined IDEXX in 2013. Her special interests include hematology and oncology. When not working or reading, Dr. Tan enjoys spending time with her husband and two dogs, Winnie and Telly.

 

 

Microbiology
 

Hani Dick, MSc, PhD

National Chief of Microbiology, Markham, ON

Dr. Dick received his PhD in microbiology from the University of Dundee, Scotland, in 1981. Following completion of the residency training program in clinical microbiology from the University of Toronto, he ran the day-to-day operations of the microbiology laboratory in the Wellesley Hospital in Toronto. With wide experience in research and teaching (including an appointment as assistant professor at the University of Toronto), Dr. Dick has collaborated on many research projects and publications on MRSA in animals. Prior to joining our Markham laboratory in 1999, Dr. Dick headed the microbiology quality control department at Pasteur Merieux Connaught (now Sanofi Pasteur).

 

 

 

Other Specialties
 

Roxanne Chan, MSc, PhD

MOLECULAR BIOLOGY—Manager, PCR Laboratory, Markham, ON

Dr. Chan graduated from the Department of Biological and Medical Sciences at McGill University in 1992. She received her postdoctoral training at the National Institutes of Health under the auspices of the prestigious NIH Fogarty Fellowship. Before joining our Markham laboratory, she was a research associate in the Faculty of Medicine, University of Ottawa, where she was instrumental in bringing a molecular biology-focused approach to the study of neuromuscular disorders. Since 2000, Dr. Chan has been leading our PCR team, and her goal is to offer high-quality, innovative PCR-based testing to our customers.

 

 

Janice Greenwood, BSc, MSc, PhD

TECHNICAL OPERATIONS—Technical Operations Specialist, Markham, ON

Dr. Greenwood received her BSc and MSc from the University of Guelph in the departments of Microbiology (Co-operative Education Program) and Veterinary Microbiology and Immunology. Dr. Greenwood worked in the private sector before returning to the University of Guelph to complete her PhD in cell biology in 1993. She went on to spend three years as a postdoctoral fellow at the Wellesley Hospital Research Institute, University of Toronto, and two years as associate research faculty at the University of Guelph. Dr. Greenwood joined IDEXX Reference Laboratories in 2000 as a member of the research and development team, and she now works as a technical operations specialist.

 

 

Donald Martin, PhD

PARASITOLOGY—National Chief of Parasitology, Markham, ON

Dr. Martin received his PhD in zoology from the University of Toronto in 1993, studying life histories and evolutionary relationships of blood parasites. From 1993–1997, he conducted postdoctoral research at the Ontario Veterinary College, studying relationships of animal parasites. From 1997–2009, he worked as the parasitologist for Ontario Public Health Laboratories, specializing in medical parasitology, including intestinal, blood, tissue and ectoparasites. He has conducted research on the improvement of methodologies for diagnosis of intestinal and tissue protozoan parasites. Dr. Martin has codeveloped training modules for the diagnosis of intestinal and blood parasites for medical students and technologists.

 

 

Convenient, flexible laboratory services


We work the way that works for you to provide the most value for your practice—increasing revenue, care standards and client loyalty. It’s why we offer:
 

  • Field consultant support for product demonstrations and staff training
  • Daily courier and late pickup in most major metro areas
  • Nationwide Purolator service with IDEXX-Direct®
  • Fast, accurate electronic ordering with LabREXX® software


You can also choose how to receive results: by fax, online at VetConnectPlus.ca, email and automatic download to IDEXX Cornerstone or other practice management system.