Live Oak Veterinary Clinic
Phone: (940) 567-6311
3923 US Highway 380 W
Jacksboro, TX 76458

24 Hour Emergency

Mon-Fri - 8:00AM - 5:30PM

Saturday - 8:00AM - 12:00PM
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Doctors

Peter Armstrong, DVM


Dr. Armstrong was born in Mountain View, California and moved at a young age to El Dorado, Arkansas where he spent his childhood. He graduated with a Bachelor of Animal Science from Louisiana Tech University. Dr. Armstrong attended Louisiana State University School of Veterinary Medicine. After graduation he moved to West Monroe, Louisiana where he joined a very busy four doctor mixed animal practice. Through relationships built during vet school, Dr. Armstrong became aware of the Live Oak Veterinary Clinic becoming available for sale. In October 2014, he purchased Live Oak Veterinary Clinic.

Dr. Armstrong enjoys working at a true mixed animal practice. His clinical areas of interest include small animal internal medicine, soft tissue and orthopedic surgery, bovine herd health and reproductive medicine, and whitetail and exotic animal herd health.

Dr. Armstrong is a Louisiana native and in April of 2016 he welcomed home his son, Pierce. Most of his hobbies are related to outdoors. He enjoys all forms of hunting, but bird hunting with a German Shorthair is his favorite.

Professional Memberships

  • American Veterinary Medical Association

  • Texas Veterinary Medical Association

  • American Association of Bovine Practitioners

  • Society for Theriogenology

  • Deer Breeders Cooperative





Lauren Bessert, DVM


Dr. Bessert, born and raised in Texas, studied at Tarleton State for her Undergrad Degrees in both Biomedical Sciences & Animal Science. She then attended the College of Veterinary Medicine at Midwestern University in Glendale, AZ.

While she didn’t grow up on a farm, her life-long love of animals kept her around animals between owning & showing horses, and raising dogs, rabbits and pigs. Dr. Bessert has ridden competitively in both the hunter/jumper ring and 3-day eventing. Dr. Bessert also showed goats in her local FFA in high school.

Dr. Bessert always wanted to be a veterinarian and work with horses, cows, and pigs in a small town practice in rural Texas where she grew up.

Her primary professional interests are cattle herd health and small animal dentistry, but she is excited to see any cases that come her way.

When she is not busy at the clinic, Dr. Bessert enjoys spending time with her family riding her horses, attending country concerts, and hanging out with her dogs. Dr. Bessert & her partner James welcomed their daughter in May of 2020 & recently moved to Perrin.



Kiersten Hartrim, DVM


Dr. Hartrim came to Live Oak in July 2020. She moved many times up and down the East Coast, but spent the majority of her youth in Florida before her family settled in Texas. She completed her Bachelor of science degree at the University of Delaware and worked several years as a technician at a large animal clinic in the Texas panhandle prior to veterinary school. She attended Ross University School of Veterinary Medicine in the Caribbean and completed her clinical year at Kansas State University. Dr. Hartrim enjoys working in a mixed animal practice and the wide variety of species seen from day to day. She has particular interest in soft tissue surgery, veterinary acupuncture, and ruminant medicine.

When she isn’t working, she can usually be found spending time with her mastiff, Fang, and cat, Cricket. She enjoys all things creative from cooking, painting and writing to spending time exploring the outdoors and traveling.



Danielle Miller, DVM


Dr. Miller was born in South Bend, Indiana and grew up in the great Hoosier State. She graduated from Indiana Wesleyan University with a degree in Pre-med Biology and went on to attend Purdue University College of Veterinary Medicine. She was excited to join LOVC and work with a dedicated veterinary team who care about animals of all sizes.

Dr. Miller's special clinical interest is in small animal internal medicine as well as small ruminant and camelid medicine and herd health. Outside the clinic, she likes to travel, read, bake, and spend time with her dog and two cats.



Adam Popplewell, DVM


Dr. Popplewell graduated from Texas A&M University in 1992 with a degree in Biomedical Science, and from Texas A&M College of Veterinary Medicine in 1996. He owned a veterinary hospital for 23 years, where he practiced small animal medicine and surgery, before selling in January 2020. He and his family have since moved to Graham, and look forward to being a part of Live Oak Veterinary Clinic.


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