Chi Dog Food

CALL US AT 909-984-2211

Hospital Policy Update

If there are two no show appointments, with no phone call prior to cancel, within a six month period, there will be an associated cost of $25 added to the next visit.

We will then require a non-refundable deposit for the cost of the exam ($47.50) for any further appointments.

Thank you for your cooperation and understanding.

Pet Emergency? Read no further and call us right away!

Image of a dog wearing a stethoscope

Ontario Veterinary Hospital is a full service animal hospital and will take both emergency cases as well as less urgent medical, surgical, and dental issues. We are experienced in all types of conditions and treatments. Beyond first rate pet care, we make our clinic comfortable, kid-friendly, and a very calm environment so your pet can relax in the waiting room and look forward to meeting his or her own Ontario veterinarian.

We have a number of resources for you to learn about how to take better care of your pets. Browse around and look at our articles and pet videos. The best veterinary care for animals is ongoing nutrition and problem prevention. If you want to ask a question call 909-942-6926 or email us and we'll promptly get back to you. Our Ontario veterinarian office is very easy to get to, and you can find directions on our Contact Us page. You can also subscribe to our newsletter which is created especially for Ontario pet owners. In between your veterinary visits, your pet will benefit from you reading these free informative articles.

Same Day Appointments

It is our goal to provide the highest quality service and care, in a convenient and friendly setting. That is why we accept same day appointments when possible.

We understand that you have a busy schedule, and we want to work with you to make veterinary care easier for you and your pets. Please give us a call and we will try to accommodate your request to the best of our ability.

Thank you for choosing us as your pet’s health care provider, we appreciate the role we get to play in your loved one’s care. Please don’t hesitate to contact us today, we’d be happy to speak with you.

At Ontario Veterinary Hospital, we treat your pets like the valued family members they are.


Ontario Veterinary Hospital

121 East E. St.
Ontario, CA 91764

Contact Us

Meet Our Skilled Team

Learn Who We Are

  • Dr. Adam Wright, DVM

    Dr. Wright received his B.S. from California State Polytechnic University- Pomona and his D.V.M. from Ross University, located in the wonderful Leeward Islands (St. Kitts).After spending three years at Ross University to fulfill his veterinary degree, he then went on to spend a clinical year at the University of Missouri.

    Read More

  • Dr.
    Rebecca Johnson

    Welcome Dr. Johnson! We are very excited to welcome a new addition to our family! Dr Rebecca Johnson has been around animals since a child.  Her mother was a neighborhood animal rescuer with most wild babies.  In high school, she took a dog grooming course through a co-op program and then continued her interest in a career with animals.  She attended Michigan State University and obtained a Bachelor of Science degrees in Microbiology in 1983.  She later got her Doctor of Veterinary Medicine from Michigan State in 1989. Go Green!  She also finished a Master of Public Health degree in Epidemiology from University of Michigan in 1991.  Go Blue!  Various jobs she had during and between schooling were dog grooming at family owned pet shop, courier for bovine adrenal glands for U of M human research project, working on a raspberry farm, an internship with the Centers for Disease Control in Atlanta and an externship with the Miami Seaquarium and Museum of Natural History nature Center in Miami.  Since graduating Veterinary school, she has worked in Michigan, San Diego, San Francisco, and Los Angeles area.  She lives in Pomona with her cat and 2 snakes.  She enjoys singing karaoke and swimming.   


Find us on the map

Office Hours

Our Regular Schedule

Ontario Veterinary Hospital


8:00 am - 6:00 pm


8:00 am - 6:00 pm


8:00 am - 6:00 pm


8:00 am - 6:00 pm


8:00 am - 6:00 pm


8:00 am - 5:00 pm


9:00 am - 4:00 pm

Featured Articles

Read about interesting topics

Newsletter Signup

Sign up for more articles


Read What Our Clients Say

  • "I've been going to Ontario Veterinarian Hospital for about three years now and I can't recommend this place enough."