Our Practice

We are a full-service animal hospital providing comprehensive pet healthcare services in Carrollton, TX. Our veterinarians offer a wide variety of medical, surgical, and dental services. Our hospital has advanced equipment and technologies, including comprehensive in-house testing for accurate diagnosis, digital x-ray, surgical suites, dental suites, and a pharmacy. We are committed to providing quality care at every stage of your pet's life. From routine preventive care to early detection and treatment of a wide range of conditions and diseases, we have the expertise to provide the highest standard of care for your pet. We also serve clients in Coppell, Farmers Branch, Plano, The Colony, Lewisville, and Addison.

  • John Calhoun, DVM


    A 1990 graduate of Texas A&M University

    Dr. Calhoun has been with North Carrollton Veterinary Hospital since 1991, and is the current owner. His special interests include endocrinology and cardiology. In his spare time he enjoys Martial Arts. He is a member of the Dallas County Veterinary Medical Association (DCVMA), Texas Veterinary Medical Association, Texas Association of Veterinary Practitioners, and is presently serving on the board of directors for the DCVMA and the North Texas Emergency Pet Clinic.

  • Gregory Whitaker, DVM


    Graduate of Texas A&M University

    Dr. Whitaker joined North Carrollton Veterinary Hospital in June 2018. His special interests include opthalmology, preventative medicine, surgery, and cardiology. He loves Veterinary medicine because it strengthens the relationship between people and their beloved pets. When he is not in the clinic, he enjoys playing classical guitar, working out, cooking, and watching Aggie football.

  • Alexis Sirois, DVM


    Oklahoma State University Graduate

    Originally from Argyle, Texas, Dr. Alexis Sirois attended Oklahoma State University for undergraduate, getting a degree in Animal Science. Knowing she wanted to continue her passion for animals at America’s Brightest Orange, she completed her DVM at Oklahoma State as well in 2019. Her fields of interest include ophthalmology, pathology, and orthopedics. When she is not at work, she loves to watch sports, and by far football season is her favorite time of the year. She also enjoys running and reading with her dog & cats.

  • Julie

    Hospital Manager

  • Lauren


  • Rosie

    Technician Manager

  • Erin


  • Janie


  • Jade

    Tech Assistant

  • Elyse

    Customer Service Manager

  • Vicki

    Kennel Manager

  • Jacky


    Congratulations to Jacky! Our 2020 Employee Of The Year!

  • Deanna


  • Naomi

    Kennel Technician