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Welcome to Mountain Avenue Animal Hospital!

Mountain Avenue Animal Hospital provides quality veterinary care for cats, and dogs in Ontario, CA and the surrounding communities. 

We are committed to treating our patients with compassionate hearts, gentle hands, kind words, and superior care. Additional pet services include pet laser therapy and pet grooming.

For new clients, please call (909) 986-4548 today to make an appointment for your pet. For returning clients, please book an appointment online

Should You Get Pet Insurance?

Should You Get Pet Insurance?

Discover why pet health insurance is a smart investment for pet owners. Learn about the benefits, coverage options, and how it can save you money while ensuring your pet's health and happiness.

Learn More »

Our Clients Love Us

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We love Mountain Avenue Animal Hospital! We've been using them for our dogs for many, many years. The staff is very friendly, and knowledgeable. Great place to bring your pet when they need ...

David W

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Buena atención. Me gustó el lugar y queda serca de mi casa. La recuperación va muy bien

Kelly Lopez

4.6

Rating on
Google Reviews!
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Mountain Avenue Animal Hospital