Ontario Veterinary Hospital
Ontario Veterinary Hospital is a veterinary practice in Montclair, CA. Phone number, posted hours, directions and a map are below, along with the nearest alternatives if they are closed or full.
Contact & location
- Address
- 121, Montclair, CA
- Phone
- (909) 984-2211
- Hours
Monday 8am–6pm Tuesday 8am–6pm Wednesday 8am–6pm Thursday 8am–6pm Friday 8am–6pm Saturday 8am–5pm Sunday 9am–4pm
Data status: Compiled from public sources on 2026-07-26 and not yet independently verified — call ahead to confirm hours, services, and availability.Spot an error? Report a correction.
If Ontario Veterinary Hospital is closed
General practice, not an emergency hospital. For anything that cannot wait, use one of the emergency hospitals below.
Nearest 24-hour emergency hospitals
- PetEmerg Emegency Animal Hospital — Rancho Cucamonga, ~7 miles away, roughly a 13 min drive · (909) 922-8007
- Arlington Animal Hospital — Riverside, ~15 miles away, roughly a 27 min drive · (951) 689-0440
- Veterinary Emergency Group - Anaheim — Anaheim, ~15 miles away, roughly a 27 min drive · (714) 616-5570
Drive times are estimates from straight-line distance, not live traffic.
Other vets near Montclair, CA
Useful if Ontario Veterinary Hospital is booked, closed, or not taking new patients. Ordered by distance.
- We Talk Pets Animal HospitalUpland · ~3 miles · 🚗 ~10 min
- Mountain View Veterinary HospitalUpland · ~4 miles · 🚗 ~12 min
- Pepptertree Animal HospitalMontclair · ~4 miles · 🚗 ~12 min
- Alta Loma Animal HospitalRancho Cucamonga · ~5 miles · 🚗 ~14 min
- Chaparral Pet HospitalClaremont · ~5 miles · 🚗 ~10 min
- Banfield Pet HospitalRancho Cucamonga · ~6 miles · 🚗 ~10 min
Suspected poisoning: call ASPCA Animal Poison Control on (888) 426-4435 (24/7, consultation fee applies) on the way in.