Meet the friendly staff at Duval Animal Hospital! 

At Duval Animal Hospital, we have an amazing staff to meet all of your veterinary needs. 

Click on the names below to meet and get acquainted with our staff.


  • Dr. Tim Overbey
    DVM - Veterinarian/ Owner

    Dr. Tim Overbey received his B.A. in Zoology from the University of California, Santa Barbara in 1993. He then went on to receive his DVM from the University of California, Davis in 1999.  Dr. Overbey practiced in San Mateo, California, before relocating to Arizona in 2005.  He practiced in Tucson until 2010 when he joined the team at Duval Animal Hospital.

    In 2012 he became Practice Owner.

    Areas of professional interest include internal medicine and soft tissue surgery.

    Dr. Overbey lives in Tucson with his two cats; Pequod and Claude. In his free time, enjoys playing soccer, cycling, reading, & grilling.

  • Dr. Barry Wilkinson
    DVM - Veterinarian

    Dr Barry Wilkinson earned his B.S degree in Veterinary Science and Microbiology from the University of Arizona in 1999 where he was named the Outstanding Senior of his class. He subsequently attended Colorado State University where he received his 2003 , graduating in the top 1% of his class,  just 2 months shy of his 50th birthday .He graduated from both of these institutions Summa Cum Laude .

    While Dr. Wilkinson has many canine patients he has a special interest in feline medicine and has been a member of The American Association of Feline Practitioners for the past 15 years. While in vet school he served as an officer in the organisation for several years. 

    Read More
  • Mandy
    Veterinary Technician

    Mandy was born in Tucson.  When she was seven or eight, she and her family moved to Mississippi and then to Tennessee.  When she was ten, they moved to San Diego where she spent the rest of her childhood.  In 2009, Mandy moved back to Green Valley, Arizona to get a new start on life.  

    In her spare time, Mandy enjoys activities such as yoga, billiards, target practice, and spending time outdoors off-roading with friends.

    Read More
  • Lauren
    Kennel Technician

    Bio Coming Soon!

  • Hilary
    Kennel Technician

    Bio Coming Soon!

  • Karla
    Veterinary Assistant

    Bio Coming Soon!

  • Cheyenne
    Part Time Veterinary Assistant

    Bio Coming Soon!

  • Mackenzie

    Bio Coming Soon!

  • Jennifer

    Bio Coming Soon!

  • Janelle

    Janelle grew up in Massachussetts and moved here four years ago. She enjoys crafting and working with stained glass. 

    She has five kids who have four legs, have fur, and bark. Apple and Rigby are from TALGV, Hans and Pee-Wee, were taken from the streets of Nogales, Arizona and Jack, was brought with her from Massachussetts. They each have their own personalities and are constantly making her laugh.

  • Christina
    Part Time Veterinary Technician

    Bio Coming Soon!

  • Amber
    Veterinary Technician

    Bio Coming Soon!

  • Kayla
    Practice Manager/ Technician

    Kayla was born in Dallas, TX and moved to Greensboro, NC as a small child where she grew up and obtained her BS in Business Administration at the University of North Carolina at Greensboro in 2014. Kayla spent her college years working in retail as a sales associate where she quickly became an assistant manager.

    In January 2016 she relocated to Arizona to be closer to her family and to ultimately pursue her life long dream of becoming involved in the veterinary field. Kayla started at Duval Animal Hospital as a Veterinary Assistant and has worked her way up to Veterinary Technician and now Practice Manager.

    In her free time she enjoys grilling, spending time with friends and family and being outdoors.

    Kayla currently shares her home with her 7 year old Cavalier King Charles Spaniel, 'The Boog Man', a 9 month old Cattle Dog Mix, Angus, and her 2 year old cat, Baby Ennis.

    Kayla is very excited to be using her back ground in business and experience in the veterinary field to continue to make a difference in the lives of companion animals and their owners. 

Contact Us

We look forward to hearing from you


Find us on the map

Office Hours


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-12:00 pm