Meet Our Team

  • Dr.
    T.J. Walker

    Tommy Joe Walker was born in Lubbock, Texas, and raised in Montana, Canada, and Texas. He graduated from A&M in 1972, and has practiced in Texas and New Mexico. 

    He has been married since 1969, with two children. T.J. sings in the praise team at church and can be seen near Stephenville on his John Deer tractor trying to find his roots as a farmer.

    Member of:  
    AVMA (American Veterinary Medical Association)
    TVMA (Texas Veterinary Medical Association)
    Tarrant County Veterinary Medical Association

  • Kolby Walker, CVPM
    Practice Manager
    Kolby has been with ACOA for 30+ years now. He is Dr. Walker's son. He has no intention of taking over the family business though. Kolby enjoys spending time with his wife Jacque and sons Carter and Sam, hiking with his buds, and rooting for his beloved Texas Rangers. He has a chorkie named Kolbi and a pit bull named Bonnie.CVPM

  • Michelle Stephenson
    Veterinary Assistant

    Michelle graduated from Richland College with an Associates Degree in Science. She has been with us since 2012. She has worked in the veterinary field since 2009. Michelle enjoys providing loving care to all our patients. In her free time, she likes being with friends & family and curling up on the couch with her dog.

  • Nicole Rutherford
    Veterinary Assistant

    Nicole joined us 2018. Nicole graduated from the University of Texas-Arlington in 2019 with a Bachelor of Science degree. She and her husband, Shane, have a dog, Ginger, and a kitty named Phoebe. In her free time, Nicole loves to bake and spend time with her family and friends.

  • Claire Almaraz
    Veterinary Assistant

    Claire came to the Animal Clinic of Arlington through Arlington ISD's Health Care Career Practicum. She is a senior at Arlington High School and a member of FFA where she shows goats. She is hoping to attend Texas A&M in the fall. 

  • Madeleine Shimabukuro
    Customer Service Representative

    Madeleine joined us in 2020. She is the niece of Michelle Stephenson. She is the oldest of 5 brothers and sisters. In her free time she enjoys reading and playing with her English and Irish Setters Nora, Willie and Easton and her kitty Puzzle.


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Office Hours

Our Regular Schedule


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-12:00 pm


8:00 am-5:00 pm


8:00 am-12:00 pm