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
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.
Learn More »Our Clients Love Us
Professional serve and kind and caring. Doctor and staff treated our dog with kindness.
Joseph Garcia Sr.
Great the vet was awesome. He looked at Zod and was like this and that he gave me For him and everything went well he got better and the ladies that worked there too were very nice
Briggette Mccord
4.6
Rating on
Google Reviews!





