Jul 2026
Staff always friendly and ready to help. Dr Kim is the best I’ve been bringing my pets here for over 10 years. There are always appointments available, and their prices are reasonable compared to others. Highly recommend..
About Mountain Avenue Animal Hospital
Mountain Avenue Animal Hospital is a caring and compassionate veterinary hospital that provides quality care for dogs and cats in Ontario, CA, and surrounding communities. The hospital's veterinarians and support staff are dedicated to their patients, clients, and community. They offer a welcoming and understanding environment, especially during difficult times. The office staff and doctors are kind and patient, always looking out for the well-being of the animals. Patients receive gentle and thorough care, without unnecessary expenses. The hospital's commitment to excellent service and communication has earned the trust and appreciation of its clients. The staff is friendly and always ready to help, with appointments often available on short notice. The doctors are professional, kind, and attentive, ensuring pets receive the best treatment. The hospital is known for its reasonable prices and friendly service, making it a trusted place for pet owners seeking urgent medical care, vaccines, pet food, and more.
Reviews
Jul 2026
We are incredibly grateful for the compassion and kindness shown by the entire team during one of the hardest moments our family has faced. We recently had to say goodbye to our beloved cat, Pulgad aka Kitty aka Melecio, and the veterinarian handled the entire process with such care, dignity, and genuine empathy. They made an incredibly difficult day just a little easier.
A few days later, we received a handwritten condolence card from the doctor and staff. It was such a thoughtful gesture and meant more to us than words can express. It reminded us that they truly care not only for their patients but also for the families who love them.
They have always provided exceptional… read full review
Mar 2026
The staff and doctors here very professional and kind. I always get an appointment either the day I call or within the next day I’ve referred some friends to Mtn Ave hospital for thier fury pets.
Photos
Hours
Monday 8AM - 6PM
Tuesday 8AM - 6PM
Wednesday 8AM - 6PM
Thursday 8AM - 6PM
Friday 8AM - 6PM
Saturday 8AM - 1PM
Sunday Closed
Good to know
- parking
- wheelchair accessible
Location
1155 North Mountain Avenue, Ontario, CA 91762
Explore More Businesses Nearby
You May Also Like
For local businesses
Is this your business?
Upgrade your profile to add the context customers, search engines and AI systems use to evaluate and recommend your business.