About the Obesity Center Team

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The UTCVM Veterinary Obesity Center is staffed by world experts in pet obesity. Dr. Angela Rollins and Dr. Maryanne Murphy are Board Certified Veterinary Nutritionists with numerous publications in the fields of nutrition and obesity. The Center’s coordinator, Ms. Tammy Moyers, is a highly experienced veterinary technician with a specialty certification in nutrition.

Meet our Staff

Angela Rollins, DVM, PhD, DACVIM (Nutrition)

Dr. Rollins

Dr. Angela Witzel Rollins is a Diplomate and former President of the American College of Veterinary Nutrition. She is currently President of the American Academy of Veterinary Nutrition. Dr. Rollins is a Clinical Associate Professor of Nutrition at the University of Tennessee Veterinary Medical Center, where she also attained her DVM, PhD, and residency training. Her research focuses primarily on obesity physiology, prevention, and treatment in dogs and cats.

Maryanne Murphy, DVM, PhD, DACVN

Dr. Murphy

Dr. Maryanne Murphy is a Diplomate and current President of the American College of Veterinary Nutrition. Dr. Murphy received her dual BS in animal sciences and biological sciences from Rutgers University and her DVM from Iowa State University. She then completed a rotating general medicine and surgery internship at Fifth Avenue Veterinary Specialists in New York City. Dr. Murphy’s clinical nutrition residency and PhD were completed at the University of Tennessee and the focus of her dissertation research was energy metabolism and satiety in lean and obese dogs. She joined the staff of Red Bank Veterinary Hospital in Tinton Falls, NJ as a clinical nutritionist for a few years and then transitioned back to academia at the University of Tennessee as a Clinical Assistant Professor of Nutrition. Dr. Murphy’s major professional interests include obesity prevention and management and veterinary nutrition education.


Ms. Moyers

Tammy Moyers, graduated from Lincoln Memorial University in 1991 with her associates degree of applied science in Veterinary Technology, she received her VTS(Nutrition) certification in 2014. Tammy has been a veterinary nurse at UTCVM since 1996, her special interest includes obesity and weight management.

Contact Us

  • Email: utvoc@utk.edu
  • Phone: 865-974-8387 – Ask for Tammy Moyers