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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

Food Coma? How to Tell if Your Pet Just Ate Too Much

Food Coma? How to Tell if Your Pet Just Ate Too Much

Is it a food coma or a belly emergency? Gastric Dilatation-Volvulus (GDV), or bloat, is when a pet’s stomach fills with gas, food, or fluid and twists on itself and is most common in deep chested dogs like Great Danes and German Shepherds but can happen in any breed. Learn what to do if your pet has eaten too much and when to call your veterinarian. 

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Our Clients Love Us

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Great staff!!!

J Nort (yo Jack)

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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

4.6

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Mountain Avenue Animal Hospital