Welcome, Dr. Castillo and Dr. Thompson!

Chisholm Trail Veterinary Clinic of Lockhart welcomes two new doctors: Dr. Lauren Thompson and Dr. Ariel Castillo!


Dr. Lauren Thompson

Dr. Thompson grew up in Grandview, Texas, alongside a horse named Apache. Apache made Dr. Thompson realize her love for veterinary medicine – a love that blossomed when she began raising and showing livestock across the state and nation.

When she graduated high school, she headed to Texas A&M University, where she obtained her bachelor’s degree in Animal Science in 2013 and her Doctor of Veterinary Medicine in 2018. During her collegiate years, she developed a strong passion for meat science, ruminant (cattle, goats, sheep, deer) nutrition, and herd health. She worked alongside a board certified theriogenologist (reproduction specialist) at Brazos Valley Genetics, where she gained experience in bovine embryo transfer. She also participated in the Veterinary Medical Student Research Training Program and completed a bovine externship for Zoetis.

She and her husband enjoy spending time with their four dogs, traveling across the globe, and cheering on the Aggie football and baseball teams.

Yes, Dr. Ariel Castillo is named after a certain red-headed mermaid. She hails from Amarillo, Texas. When Dr. Castillo was very young, she knew she wanted to become a veterinarian. Then, when she was about 8 years old, she accompanied her own injured pet to the vet’s office, and she watched the doctor save her pet’s life.


Dr. Ariel Castillo

“I think God molded a heart filled with compassion and deep love for animals and gifted it to me,” says Dr. Castillo. “I’ve never wanted to do anything else but advocate and care for animals.”

After high school, Dr. Castillo attended Texas Tech University, where she received her BS in Animal Science in 2012. Shortly after, she gave birth to her daughter, Averie. She and Averie then made the move to College Station, where Dr. Castillo balanced parenthood and her graduate courses. In 2018, she received her Doctor of Veterinary Medicine from Texas A&M University College of Veterinary Medicine.

During her time at A&M University, Dr. Castillo was a member of the surgery and anesthesia club, as well as the student chapter of the American Association of Equine Practitioners. She developed particular interests in ophthalmology, small animal medicine and surgery, and equine internal medicine.

Dr. Castillo joins the Chisholm Trail Veterinary Clinic team as a mixed practitioner, with an interest in small animal and equine medicine.

When Dr. Castillo isn’t in the office caring for her client’s pets, she prefers to spend her time with her daughter and her two dogs, Minion, a 7-year-old Labrador retriever, and Pluto, a 3-year-old Labrador retriever/pit bull mix. Her three babies keep her busy, but in her rare moments of down time, she likes to brew a cup of coffee, grab a blanket, and get lost in a novel.

If you see any of our new doctors, please give her a warm welcome! You can schedule an appointment with Dr. Castillo or Dr. Thompson by calling us at 512-620-0111 or contacting us online.