Meet The Doctors

Since 1994, Glenn Thomas, DVM - Stephen King, DVM  along with their professional staff have cared for many four-legged family members. Dr. King and Dr. Thomas were joined by James Yates, DVM in 2020 and Krystle Clayton, DVM in 2021. Tupelo Small Animal Hospital offers a friendly, home-like atmosphere, as well as prompt service. Because we know that not all friends get along all the time, we created separate waiting areas for cats and dogs, helping relieve stress on both the patient and client.

Glenn Thomas, DVM

Practice Owner

Dr. Glenn Thomas is a native of Tupelo, MS. Born and raised there, he grew up with horses, cattle and other small animals he could raise. He went on to receive a Bachelor of Science degree in Chemistry from Millsaps College. He then earned his Doctor of Veterinary Medicine from Mississippi State Univerisity. He built Tupelo Small Animal Hospital in the summer and fall of 1993 and with his partner Stephen King, they opened in January of 1994. His veterinary areas of interest are Pediatrics, Behavior, General Surgery and Oncology. He also enjoys overseeing the day to day operations of the practice.

He presently has six dogs and three cats. Besides practicing small animal medicine, Dr. Thomas enjoys training retrievers, traveling, doing yard work and things with his hands. Spending time with his wife, Mary, and three children when possible is his favorite past time, especially at Pickwick Lake. He is an active church member at First Presbyterian in Tupelo, singing in the choir, serving on the session and participating in the Clean Water/medical mission to Guatemala for the last ten years. He is also involved in supporting many different nonprofit philanthropies in Tupelo.

Stephen King, DVM

Practice Owner

Dr. Stephen King grew up in Memphis, TN, and attended Memphis University School.  He received his Bachelor of Science in Animal Science from the University of Tennessee in Knoxville in 1981 and his Doctor of Veterinary Medicine from the Mississippi State University College of Veterinary Medicine in 1988.  After graduation, he practiced in Boone and Reidsville, North Carolina for two years and practiced in Memphis for three years before moving to Tupelo in 1993. He and Dr. Glenn Thomas opened Tupelo Small Animal Hospital in January 1994.  Along with Practice Management, Dr. King’s areas of interest are Internal Medicine and Dentistry.

He is an avid cyclist, and he continues to enjoy camping and taking day hikes with his dogs.  His community involvement has included being on the Tupelo-Lee Humane Society Board, a Scoutmaster, and the Senior Warden at his church.  A member of the American and Mississippi Veterinary Medical Associations, he has been the Mississippi Veterinary Medical Association (MVMA) Northern District Representative, served on the Mississippi State University College of Veterinary Medicine Shelter Medicine Advisory Board, was on the Veterinary Medical Technology Program Advisory Board, and is presently serving on the MVMA Speaker Selection Task Force.  He and his wife, Mary Howard, have three adult children, three dogs, and numerous cats.

James Yates, DVM


Dr. James Yates is originally from Olive Branch, Mississippi. He attended Mississippi State University for his undergraduate education and received his Doctor of Veterinary Medicine from the Mississippi State University College of Veterinary Medicine in 2020. His areas of veterinary interest include radiology specifically ultrasonography, soft tissue surgery, and all things brachycephalic (flat-faced animals). 

Dr. Yates and his wife Sarah moved to Tupelo in April of 2020. They have two daughters, Olivia and Hannah, and share their home with an English Bulldog (pictured). As a die-hard Mississippi State fan, he enjoys all aspects of MSU athletics, especially football at Davis Wade. He is an avid player and fan of competitive card games such as Magic: the Gathering and volunteers his time as a tournament organizer and judge for the Pokémon trading card game. He also enjoys performing in musical and live theater, as well as playing guitar and bass guitar.  He was most recently seen as Jud Fry in Mississippi State University’s production of “Oklahoma!”. Dr. Yates and his family look to become patrons of the Tupelo Community Theater in the future and participate in other local theater events to come. Hail State!

Krystle Clayton, DVM


Dr. Krystle Clayton grew up in Falkner, Mississippi. She graduated from the University of Southern Mississippi with a Bachelor of Science degree in Marine Biology in 2012. Following graduation, she taught high school science for three years before deciding to become a veterinarian. She received her Doctor of Veterinary Medicine from Mississippi State University’s College of Veterinary Medicine in 2020. Her areas of interest include emergency medicine and wound management. She is a member of both the American Veterinary Medical Association and the Mississippi Veterinary Medical Association.

She spends her free time with her husband of twelve years as well as their shady cat, Binx, and two very needy but sweet dogs, Oliver and Rudy. She attends New Albany First Baptist Church and enjoys fishing and spending time outdoors any chance she has.  


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Office Location

  • Tupelo
  • 2096 S Thomas St
  • Tupelo, Mississippi
  • 38801
  • Map & Directions
  • Call: (662) 840-0210