San Antonio Veterinarians

We invite you to explore the biographies of our doctors and learn more about them. Our doctors have a wide variety of backgrounds and interests.

  • Cecilia Guerrero

    Medical Director
    Veterinary School: Texas A&M University

    Dr. Cecilia Guerrero joined our staff in December 2007. Dr. Guerrero was born in San Antonio and attended Texas A&M for both her undergraduate and graduate degrees. She graduated from Texas A&M

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  • David O'Brien IV

    Associate Veterinarian
    Veterinary School: Texas A&M University

    Dr. David O'Brien is a 1994 graduate of Texas A&M Veterinary School and has been practicing in Texas for the past 17 years. Dr. O'Brien is dedicated to improving the quality of life for pets.

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  • Marvin Ratliff

    Associate Veterinarian
    Veterinary School: Texas A&M University

    Dr. Marvin Ratliff, Jr. joined the staff at VCA Henderson Pass Animal Hospital in January 2014.  Dr. Ratliff graduated from Texas A&M University in 1969.  Prior to joining Henderson

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