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.
Helping Your Pets Ace the Back-to-School Transition
Help your pets adjust to back-to-school changes by discovering expert tips on routines, enrichment, and managing separation anxiety.
Learn More »Our Clients Love Us

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

Very professional
J. Briceño

4.6
Rating on
Google Reviews!
