Small Animal Internal Medicine - Texas A&M Veterinary Medical Teaching Hospital in College Station, Texas Small Animal Internal Medicine - Texas A&M Veterinary Medical Teaching Hospital

Small Animal Internal Medicine

For small animal appointments call (979) 845-2351 Monday - Friday 7:30 a.m. to 5:30 p.m. Emergencies accepted 24 hours a day
Internal Medicine

Our Service

Our Internal Medicine Service cares for patients affected by conditions of the major body systems including the liver, kidneys, gastrointestinal tract and pancreas, lungs and upper airways, endocrine glands, immune system, and those affected by infectious diseases. We have access to the most state of the art diagnostic and therapeutic technologies that enable us to diagnose and treat many advanced diseases and uncommon problems. The size of our clinical faculty allows us a unique opportunity to collaborate with other clinical services, such as Radiography, Dermatology, Neurology, and Cardiology, providing every patient a tremendous resource of specialists-all under one roof.

To make an appointment, please call (979) 845-2351.

Our Team

Our faculty in the Internal Medicine Service are specially trained to help diagnose and treat difficult to identify and complex diseases. They understand the intricate systems of a pet's body and have access to state-of-the-art technology and diagnostic tools to help them in making a diagnosis. Our faculty is especially focused on educating and training future internal medicine specialists and working with our fellow veterinarians to help provide the best quality of life for a pet.

Audrey Cook

Audrey K. Cook, BVM&S, MRCVS DACVIM, DECVIM, DABVP (Feline Practice)

Associate Professor

Dr. Audrey Cook obtained her veterinary degree at the University of Edinburgh in 1989. She completed an internship in small animal medicine and surgery at North Carolina State University before starting her residency in small animal internal medicine at University of California at Davis. She completed this program in 1994, and achieved board certification with the American College of Veterinary Internal Medicine in 1994 and the European College in 1996. Dr. Cook owned a referral practice in Virginia for ten years before joining the faculty here in 2007. She works with both the Internal Medicine Service and the Feline Internal Medicine Service. Her professional interests include endocrinology and gastroenterology.

Jörg M. Steiner

Jörg M. Steiner, med. vet., Dr. med. vet., PhD, DACVIM, DECVIM

Professor of Small Animal Internal Medicine/ Director of the Gastrointestinal Laboratory

Dr. Jörg Steiner received his veterinary degree from the Ludwig-Maximilians University in Munich, Germany in 1992. He did an internship in small animal medicine and surgery at the University of Pennsylvania from 1992 to 1993 and a residency in small animal internal medicine at Purdue University from 1993 to 1996. He received his Dr. med. vet. degree from the Ludwig-Maximilians University in 1995 in recognition of research on feline trypsin and feline trypsin-like immunoreactivity. In 1996, he achieved board certification with the American College of Veterinary Internal Medicine and the European College of Veterinary Internal Medicine. In 2000, Dr. Steiner received a PhD from Texas A&M University for his work on canine digestive lipases and their use for the diagnosis of gastrointestinal disorders in the dog. He currently serves as a professor with the Department of Small Animal Clinical Sciences and the Department of Veterinary Pathobiology at Texas A&M University. Dr. Steiner also acts as Director of the GI Laboratory and is involved in a wide variety of research in small animal gastroenterology.

Michael D. Willard

Michael D. Willard, DVM, MS, DACVIM


Dr. Mike Willard received his DVM from Texas A&M in 1975. He spent 2 years at Kansas State completing an internship and a Master's program, and then went on to Michigan State as a resident, staying on as an assistant professor. He was an assistant professor and an associate professor at Mississippi State University for a period, before returning to Michigan State as an associate professor in 1985. Dr. Willard ultimately returned to Texas in 1988, where he has been since. He is a Diplomate of the American College of Veterinary Internal Medicine and has consulted at a private referral practice in San Antonio on specialty cases.

Debra Zoran

Debra Zoran, DVM, MS, PhD, DACVIM


Dr. Debra Zoran is a 1984 DVM graduate of Kansas State University's College of Veterinary Medicine. Following graduation, she entered private clinical practice in the Phoenix, AZ area until returning in 1987 to Iowa State University for her small animal internal medicine residency. She completed a Master's degree and became a Diplomate of the American College of Veterinary Internal Medicine (small animal internal medicine) during her time there. In 1992, she moved to Texas A&M University to undertake a PhD in nutrition with Dr. Joanne Lupton, and completed her dissertation, "Butyrate and the colonocyte: Effect on cellular events and role in protection against colon cancer," in 1997. Since that time, Dr. Zoran has been a member of the clinical faculty in the Veterinary Medical Teaching Hospital at Texas A&M University where she is actively involved with clinical, teaching, and research activities in small animal gastroenterology, nutrition, and feline medicine.

Johanna Heseltine

Johanna Heseltine, DVM, DACVIM

Clinical Assistant Professor

Dr. Johanna Heseltine received her DVM from the University of Saskatchewan in 1998 and then completed a rotating small animal internship at the University of Prince Edward Island.  She completed her Master’s degree and small animal internal medicine residency at Virginia Tech and is a Diplomate of the American College of Veterinary Medicine (specialty of small animal internal medicine). She has held faculty and teaching positions at Oklahoma State University and the University of Saskatchewan, respectively.  She has also practiced in private specialty clinics in Vancouver, British Columbia and Sugar Land, Texas prior to joining the faculty at Texas A&M University.

Jonathan Lidbury

Jonathan Lidbury, DVM, DACVIM, DECVIM, MRCVS

Assistant Professor

Dr. Lidbury received his veterinary degree from the University of Glasgow in Scotland in 2002.  He worked for several years in general and referral practices in the United Kingdom before completing an internship in small animal medicine and surgery at the California Animal Hospital, Los Angeles, California.  In 2007 he joined the GI Lab at Texas A&M University as a PhD student and began his residency in small animal internal medicine in 2008.  In 2011 Dr. Lidbury achieved board certification with the American College of Veterinary Internal Medicine.  His clinical interests include all areas of small animal gastroenterology and he is currently working on a project to develop new non-invasive tests for liver disease in dogs.

Kate Creevy

Kate Creevy, DVM, MS, DACVIM

Associate Professor

Dr. Creevy received her Bachelor of Science from Georgetown University and her DVM from the University of Tennessee. She completed a rotating small animal internship at the University of Minnesota and worked for several years in private practice as an emergency clinician while also completing a Cancer Research Training Fellowship developing at the NIH's National Cancer Institute.  She joined the faculty at the University of Georgia in 2003 as an emergency medicine clinician, and subsequently completed both her residency in Small Animal Internal Medicine, and her Master’s degree in Infectious Disease at UGA, and stayed on the faculty at UGA until 2016, when she joined the faculty at Texas A&M.  Dr. Creevy is also the Lead Veterinarian for the Dog Aging Project, a multicenter, multidisciplinary research collaboration whose long-term goal is to understand the genetic and environmental determinants of healthy aging in companion dogs.

Melanie Landry

Melanie Landry, DVM

Veterinary Resident Instructor

Brigitte McAtee

Brigitte McAtee, DVM

Veterinary Resident Instructor

Dr. McAtee received her B.S. In Biology from Loyola University in 2010, and completed her D.V.M. at Auburn University in 2014. She completed an internship at Louisiana State University before beginning her residency at Texas A&M.

Joseph Cyrus

Joseph Cyrus, DVM

Veterinary Resident Instructor

Dr. Joseph Cyrus received his veterinary degree from the Kerala Agricultural University, India in 2007, followed by a Master of Veterinary Science in 2009. After a year in practice, he started his Ph.D. program at the Gastrointestinal Laboratory. He completed a specialty small animal internal medicine internship in 2015 at Texas A&M University before starting his residency. His research interests include non-invasive diagnostic markers for assessment of intestinal diseases, and exocrine pancreatic insufficiency.

Jean Laird

Jean Laird

Veterinary Technician

Jean Laird has been a vital part of our Internal Medicine department as the head tech over Endoscopy and Internal Medicine I for over 10 years.  Jean has been a veterinary technician for over 20 years with extensive experience in emergency clinics, practice management, surgery practices, alternative medicine, cardiovascular research, as a head technician in private practices and as a cruelty investigator for the Houston SPCA. She developed a in-depth training program for the endoscopy service and trains the Internal Medicine residents on the state-of-the-art endoscopy equipment and endoscopic procedures.  She also regularly instructs the 3rd and 4th year veterinary students, interns and residents on diagnostic procedures for complex Internal Medicine cases. She is currently completing her LVT license and will then pursue a specialty certification in Internal Medicine. She volunteers regularly at community outreach programs for the CVM, such as The Houston Livestock Show and Rodeo and Parent's Weekend. Jean and her husband live in CS with their horses, 4 dogs and 2 cats.

Michelle Hervey

Michelle Hervey

Veterinary Technician A.A.S, LVT

I have been a veterinary technician for over 10 years. Since working for Small Animal Internal Medicine, I have been the lead veterinary technician on many complex internal medicine cases and on in-depth, intricate procedures. I regularly instruct the 4th year veterinary students, interns, and residents, and have become a vital part of the Internal Medicine Service. I started in the VMTH Equine Lameness, Community Practice, and Large Animal ICU. Later, I worked for a Private Practice Veterinarian until I graduated from the Blinn College Veterinary Technology Program in 2014 with an Associate of Applied Science. In 2014, I worked for the VMTH Food Animal Field Service department, and then in 2015 began my journey with the Small Animal Internal Medicine department. I am currently completing my Bachelor’s degree from Tarleton State University in Veterinary Technology, and will graduate in the Fall of 2017. After completing my Bachelor’s degree I will be working towards receiving a Veterinary Technician Specialty in Small Animal Internal Medicine.

Paula Plummer

Paula Plummer

Veterinary Technician LVT, VTS (ECC, SAIM)

Paula has been at Texas A&M University since 2007, first working in the Small Animal ICU and then moving to the Feline Internal Medicine service in 2011.  She graduated from Murray State College in Tishomingo, OK and has been a registered veterinary technician since 2000.  In 2011 she received her veterinary technician specialty in emergency and critical care and in 2014 she received her second VTS in small animal internal medicine.  She is one of three organizing committee members for the new AVTCP-Feline VTS.  Paula has spent most of her career in academia working in the critical care unit or feline internal medicine teaching veterinary students tasks that will help them be a better patient advocates when they graduate.   Paula is also involved in teaching technicians in online programs and being a guest lecturer and lab instructor at local, regional and national continuing education symposiums.  When she is not working, Paula enjoys spending time with her husband and furry 4 legged family.

Mary Taylor Erskin

Mary Taylor Erskin

Veterinary Technician A.A.S, LVT

Mary Taylor has worked as a Veterinary Technician at Texas A&M since 2014, starting in the Small & Large Animal Anesthesia Department at Texas A&M. In 2015 she received her LVT and transferred to the Small Animal Internal Medicine Service, where her passion for Internal Medicine truly was discovered. Mary graduated with honors from Bel-Rea Veterinary Technician Institution in Denver Colorado in 2014, while attending school Mary worked at Seven Hill Emergency Clinic for two years as a technician's assistant. Mary enjoys helping give back to technicians by being involved and organizing technician appreciation week at Texas A&M, and activities such as CE hours for technicians to attend. Mary plans to advance more in her profession, by applying for her Specialty in Feline Clinical Practices and/or Internal Medicine Specialty. Mary enjoys teaching 3rd & 4th year vet students how to become better patient advocates and advancing in their technical skills, while also learning from other technicians herself on how to becoming a more knowledgeable, well-rounded technician. Mary’s goal is to make a difference as an LVT in her profession. Mary loves spending time with her fur babies, 3 cats & 2 dogs.