Skip to Main Content Skip to Footer

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

Understanding Avian Flu: What Pet Owners Should Know

Understanding Avian Flu: What Pet Owners Should Know

Concerned about avian influenza (bird flu) and your pets? Learn how to protect your cat, dog, or pet bird from H5N1, the symptoms to watch for, and how our team at Mountain Avenue Animal Hospital can help keep your pets safe. Call us at (909) 986-4548 for more information. 

Learn More »

Our Clients Love Us

Review quote

After having multiple bad experiences at other vets we were desperate to find a vet that would not skimp on services and care for our cat. Dr. Kim is literally one of the best! She is caring...

NJR

Review quote

Great service. Won't take my dogs anywhere else

michelle duncan

4.6

Rating on
Google Reviews!
Dog picture

Mountain Avenue Animal Hospital