Team

Callaghan Road Animal Hospital

Meet the Caring Team Behind Your Pet’s Health

At Callaghan Road Animal Hospital, our team is the heart of everything we do. Each veterinarian and staff member brings a unique blend of experience, compassion, and dedication to ensure every pet receives the highest standard of care. With over 20 years of combined experience and a shared commitment to treating every patient with a gentle touch, our team works together to create a welcoming, low-stress environment for both pets and their families.


We’re proud to be a family-owned practice that values trust, communication, and personalized care. From routine wellness visits to specialized treatments, our skilled and compassionate team is here to support your pet every step of the way. Contact us today to learn more about our team or to schedule an appointment—we look forward to caring for your furry family member.

Veterinarian in blue scrubs with a happy brown dog on an exam table
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Eduardo Guevara, DVM

Veterinarian

Dr. Eduardo Guevara was raised in the rural south Texas town of Carrizo Springs. He began his college career at Southwest Texas Junior College in Uvalde, Texas, followed by completion of his bachelor’s (1998) and master’s (2001) degrees in Animal Science from Texas A&M University-Kingsville. Dr. Guevara received his Doctor of Veterinary Medicine degree in 2005 from Tuskegee University School of Veterinary Medicine, Tuskegee, Alabama. After graduation, Dr. Guevara moved to San Antonio, Texas, where he has been practicing both large and small animal medicine. His special interests include soft tissue and orthopedic surgery. When not in the clinic, Dr. Guevara devotes time to his large animal medicine special interest in equine reproduction.

Jennifer Evans, DVM

Veterinarian

Dr. Jennifer Evans, originally from Somerset, Pennsylvania, attended undergraduate school at Slippery Rock University near Pittsburgh Pennsylvania. She then received her veterinary degree in 2005 from Tuskegee University in Tuskegee, Alabama.


After graduation, she spent two years practicing in Titusville, Florida. During her time there, she enjoyed wakeboarding, spending time at the beach, and visiting the amusement parks in Orlando. Dr. Evans relocated to San Antonio in 2007. Since moving to the area, she has worked full time both in general practice and as an emergency veterinarian, in addition to providing relief services for many nearby animal hospitals. Her special veterinary interests include feline diseases, pain management, and pet adoption.


When not practicing veterinary medicine, Dr. Guevara and Dr. Evans enjoy spending time with their two boys, five dogs (Junior, Coyote, Spot, Ellie, and Greta), three cats (Oscar, Lucas, and Fiona), and dozen Koi fish. Despite their hectic lifestyle, they enjoy traveling, the outdoors, sporting events, and cooking shows.

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Terri

Practice Manager

Terri’s career in the veterinary world began in 1998 when she started as a receptionist. Her love for animals and management experience made her the perfect choice for a practice manager position at an area clinic. When Dr. Evans and Dr. Guevara opened their clinic and invited her aboard, it was an easy decision. Terri was excited not only to work with veterinarians she respected, but also to be a part of Callaghan Road Animal Hospital from the ground up.


Terri has been a pet owner since she was a young girl and has fostered that love of animals in her own children. While she has had hamsters, birds, rats, dogs, and cats in the house over the years, currently Zoe, a 10-year-old Schnauzer mix, gets all the attention as the sole pet. Terri enjoys traveling and shares lunch or dinner dates with her adult children whenever they can squeeze it in.