Welcome to Duval Animal Hospital
Your Veterinarian in Green Valley,AZ
Call us at 520-393-6357

*As a reminder, we are closed every 3rd Saturday. We will be closed Saturday September 25th.



Due to the Coronavirus (COVID-19) Pandemic, we will be adjusting some of our protocols to help ensure the safety of our clients, staff, and patients.

DAH will make an effort to continue to provide high quality medicine and care to your pet’s during this global crisis.

If you have an appointment with us:

Please wait in your vehicle and call our clinic upon arrival. Once an exam room becomes available, you will be escorted in to the building. We are allowing ONE person; mask REQUIRED in the clinic. If you would like to stay curbside, please let us know upon arrival.

*Our Doctors will still be performing physical exams in the treatment area.

If you are picking up medications/food for your pet:

Please call from your vehicle. Your transaction will be processed over the phone and your pet’s medication/food will be brought out to your vehicle along with your invoice.

If your pet is scheduled for surgery:

Please call from your vehicle to check in. A DAH technician will be out to your vehicle to admit your pet.

Phone Number: 520-393-6357


*Please be patient with us as we transition into these new safety protocols. We appreciate your cooperation during this time.

Pet Emergency? Call us right away at 520-393-6357!

We look forward to serving you and your furry family members.


We are a full service small animal veterinary hospital located in Green Valley, Arizona. Our two full time veterinarians, Dr. Tim Overbey and Dr. Barry Wilkinson, specialize in the treatment of cats and dogs. They have 25 years combined experience in veterinary medicine.

Our hospital offers the most cutting-edge medicine available and has state of the art equipment, including a recently added class IV Companion therapy laser. Additionally, we have two full digital x-ray suites, one for dental procedures and one for full-body diagnostics. Digital radiology allows us the opportunity to routinely get input from board certified radiologists, when warranted, via telemedicine. Our clinical lab utilizes the Idexx Catalyst Dx and Laser Cyte blood analyzers allowing us to obtain immediate blood work results for our critical patients that require immediate attention. We also have an established relationship with a variety of board certified specialists that we can use for referral when warranted. We offer convenient hours and our dedicated and caring staff strives to give you and your furry family member the best possible care and experience.

Please browse our website which offers a number of resources for pet owners. If you have any questions or would like to make an appointment, please call us at (520) 393-6357.

Need a prescription refilled? Please give us a call 3-5 days in advance so we can ensure we have what you need in stock.

*Ask us about our boarding!

We are closed every 3rd Saturday, however we are now open until 1pm on Saturday's.

Tim Overbey
Green Valley Veterinarian | Duval Animal Hospital | 520-393-6357

1060 West Beta St.
Green Valley, AZ 85614

New patients receive HALF OFF their exam at first visit. Limit 1 half off exam per client.

Sign up using the form to take advantage of this exclusive offer. Coupon must be printed and presented at time of service.

Meet Our Skilled Team

Learn Who We Are

  • Brianna R
    Veterinary Assistant/CSR

    Bio Coming Soon!

  • Brynn L
    Veterinary Assistant

    Bio Coming Soon!

  • Sarah F. , CVT
    Certified Veterinary Technician

    Sarah was born in Wilmington, DE and moved to Tucson in 2008.

    She studied Veterinary Technology at Pima Community College & graduated with her AS in Veterinary Technology this May 2020. Sarah passed the VTNE and is nationally certified. She will take her AZ state certification test in November.

    Sarah has been with the Duval family since January 2020.

    Sarah is an aspiring reptile owner and hopes to have her own Russian Tortoise some day. Sarah recently adopted a Russian Tortoise in April this year named Cardamom.

    In her free time she enjoys traveling the world with her partner, baking, and gardening.

  • Ellen S
    Veterinary Technician/Technician Supervisor

    Bio Coming Soon!

  • 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 Claud. In his free time, he 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 D.V.M.in 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
  • Kayla N
    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 in February of 2016 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 9 year old Cavalier King Charles Spaniel, 'The Boog Man', a 2 year old Cattle Dog Mix, Angus, and her 2 year old cat, Baby Ennis. Kayla recently welcomed a 16 year old retired team roping Quarter horse named Marlin, also known as Big Red. Their weekends now consist of trail riding; no more cows to rope!. Kayla also recently welcomed a 3 year old Quarter Horse to her herd; Derringer.

    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. 

  • Lauren G
    Boarding Attendant

    Bio Coming Soon!

  • Samantha W
    Veterinary Assistant

    Sam joined the DAH family in early September 2020.

    She is currently attending Pima Community College to obtain an Associate of Science.

    Her goal is to transfer to the University of Arizona to major in Animal Biology with a long term goal of obtaining her DVM. 

    Sam hopes to one day own her own practice with an animal sanctuary attached for large animals (livestock; etc.) 

    When Sam is not working, you can find her hiking, reading, gardening, or spending time with her 2 dogs; Colt and Speckles. Colt is a German Shepherd Mix and Speckles is a Border Collie/Blue Heeler Mix.

    Sam's passion for animals started as a young child and has aspired to be a Veterinarian since about 6 years of age.

    She started this passion at 11 years old by showing for 4H. At 14 years of age by working with animals at Colossal Cave Stables and entered the Veterinary field at age 20.

  • Jazlyn G
    Customer Service Representative

    Jazlyn was born and raised in Tucson, AZ as an only child. She obtained her Bachelor of Science in Criminal Justice from the University of Arizona in 2007. While in College she started working at a small veterinary clinic where she first developed her love with helping furry pets.

    She currently lives with her 4 boys from the ages of 14 to 4 and her 2 dogs; Candy, a 13 year old Lhasa Apso, and Rajah, a 3 year old German Shepherd.

    In her spare time, she loves to go on outdoor adventures with her boys, traveling, spending time with family and friends - during football season she roots for the New England Patriots, and of course shopping.

    Jazlyn is so excited to be a new member of the Duval Animal Hospital team (joined November 2020) and cannot wait to meet you and your furry loved ones.

  • Adyn M
    Veterinary Technician

    Bio coming Soon!

  • Teddi B

    Bio Coming Soon!


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Office Hours - Closed every 3rd Saturday


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-1:00 pm



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