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.
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Don’t Wait for a Bite: Why Keeping Rabies Vaccinations Up to Date Matters
Rabies remains one of the world's deadliest zoonotic diseases, but it is also one of the most preventable. Learn why staying current on vaccinations is the most effective way to break the chain of infection and ensure your pet’s long-term safety. Learn More »Our Clients Love Us
The staff are always friendly and greet you as soon as you walk in. The groomer does a great job explaining how the visit went, and the vet is incredibly kind and very detailed. I truly appr...
Liz Sabajan
Very fast and efficient. Employees are very caring individuals. If you need cate for your pet, I highly recommend Mountain Avenue Animal Hospital for all your pets needs.
Elaine Wilbur
4.6
Rating on
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