Meet Our Team

Veterinarians Veterinary Staff

Dr. Ray Trimmier

DVM

After working closely with his father and helping out around the clinic as a small boy Dr. Ray Trimmier decided to pursue a career as a veterinarian. His dream was realized when he graduated from Texas A&M University in 1984 with a degree in Veterinary Medicine. Shortly after graduation, he worked as an emergency veterinarian from 1984 till 1989. He started working at Loop 410 Veterinary Hospital with his father in 1989.

Dr. Ray’s hobbies include, gardening, fishing, and spending time with his wife biking, kayaking and paddle boarding.

Dr. Ann Macfarland

DVM

From an early age, Dr. Ann Macfarland knew she wanted to be a veterinarian. She began working at veterinary hospitals in high school and first started working at Loop 410 Veterinary Hospital in 1984 while an undergraduate at Texas A&M. In 1990, she graduated from Texas A & M College of Veterinary Medicine. After graduation, Dr. Ann headed east to New Orleans where she practiced small animal and equine/racetrack medicine. The pull of Texas eventually brought her back home to San Antonio. She began working with Dr. Ray and his father in 1996 and became co-owner of Loop 410 Veterinary Hospital in 1997. She is very active in the Texas Veterinary Medical Association and served as TVMA President in 2008.

In her time off, Dr. Ann enjoys camping, hiking, gardening, and cooking. She lives on the Guadalupe River with her husband, Carl, one dog, and five cats.

Dr. David Wille

DVM

Dr. David Wille received his B.S. in Animal Science from Texas A&M University in 1984; M.S. in Nutrition from Texas A&M in 1986, and his DVM from Texas A&M in 1989. He is a member of the American Veterinary Medical Association, the Texas Veterinary Medical Association, and Southeast Texas Veterinary Medical Association.

Dr. Wille enjoys hunting and fishing in his free time, as well as spending time with his wife, Carol and his three sons: Kem, Cameron, and Samuel.

Dr. Thomas Ramsey

DVM

Dr. Thomas Ramsey has been a veterinarian in San Antonio since 1985 and joined the team at Loop 410 Veterinary Hospital in June 2023. Dr. Ramsey is a wonderfully skilled surgeon, has a special interest in orthopedic surgery, and is a Board Certified Acupuncturist. He has an A.A.S. from the Marion Military Institute in 1978. Dr. Ramsey is a graduate of Texas A & M University, where he obtained his B.S. in Veterinary Medicine in 1982 and his D.V.M. in 1984. He married his better half, Sally, in 1984. His hobbies include competitive cycling, snow skiing, and fly fishing. He and his wife are currently owned by a Plot Hound named "Taz."

Anthony Gonzales

Veterinary Technician Supervisor

Anthony has been a veterinary technician at Loop 410 since 1995. He assists our doctors with surgeries, putting in IV catheters, and drawing blood samples from patients. He is married to his wife, Stephanie, and have 2 beautiful daughters, Miranda and Evelyn. Anthony is a true outdoorsman, who loves hunting, camping, and fishing. He is also a huge San Antonio Spurs, Dallas Cowboys, and Texas Rangers fan. Anthony’s goal is to go back to school and earn his Registered Veterinary Technician Certification.