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Ontario Veterinary Hospital

Ontario Veterinary Hospital is a veterinary practice in Montclair, CA. Its website lists orthopedic surgery, ultrasound, laser therapy and boarding, plus 8 other services shown below.

Treats:✓ Dogs✓ Cats? Exotic pets? Farm & equine✓ Chickens & poultry? = not confirmed — ask when you call.

Contact & location

Address
121, Montclair, CA 91764-3707
Phone
(909) 984-2211
Website
http://ontariovethospital.com/
Hours
Monday8am–6pm
Tuesday8am–6pm
Wednesday8am–6pm
Thursday8am–6pm
Friday8am–6pm
Saturday8am–5pm
Sunday9am–4pm
📞 Call now🧭 Directions

What Ontario Veterinary Hospital says it offers

From their own website, read September 26, 2026. Not listed doesn't mean not offered — confirm when you call.

Services listed

  • Wellness & preventive exams
  • Vaccinations
  • Dentistry
  • Surgery
  • Orthopedic surgery
  • X-ray & radiology
  • Ultrasound
  • Laboratory testing
  • Microchipping
  • Laser therapy
  • Pharmacy
  • Boarding
Appointments
Online booking or requests · Same-day appointments

Data status: Compiled from public sources on 2026-07-26; not independently verified.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

Drive times are straight-line estimates.

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Other vets near Montclair, CA

Ordered by distance.

Suspected poisoning: call ASPCA Animal Poison Control on (888) 426-4435 (24/7, consultation fee applies) on the way in.