Our Veterinarians

The O'Connor Road Animal Hospital team of skilled veterinarians welcomes you to our practice. Proudly serving the San Antonio area. At O'Connor Road Animal Hospital, it is our daily privilege to provide quality vet care to your cherished pet, with compassion and competence. We hope to ensure a positive impact on our patients, pet owners and the local community.

Our Veterinarians at San Antonio Animal Hospital
Dr. Zengler at San Antonio Veterinary Clinic

Cheryl Zengler
Managing DVM

I was born and raised in New Braunfels, TX. I moved to Alpine, TX for undergrad at Sul Ross State University. Then, I spent 2 years in Midland, TX to become a Registered Veterinary Technician. Then I went to Texas A&M for Vet School. Finally, I came back home to family and my church and have been here ever since. I am now the Managing Veterinarian at O’Connor Road. I have 2 dogs, Willow Sr. and Jager. Willow Sr. is a black lab mix who is very sweet and patient with the kids. Jager is a chocolate lab who is a perpetual teenager and a lot of fun.. Time outside of work is devoted to my kids and husband. If there is ever any down time I enjoy jigsaw puzzles, counted cross stich, and reading books.

Terry Kern, DVM at San Antonio Animal Hospital

Terry Kern


Eric Schmeltzer, DVM at San Antonio Veterinary Clinic

Eric Schmeltzer


Ryan Tomasini, DVM at San Antonio Animal Hospital

Ryan Tomasini

I always wanted to be a Veterinarian so that I could help animals. Growing up I was able to be around small and large animals, which only fueled my passion for Veterinary Medicine. I attended Texas A&M University where I received a Bachelors in Biomedical Science, Masters in Public Health, and DVM. I enjoy spending time with my wife and two children. We try to find time to do things like hunting, fishing, working at the family ranch and wood working.