O’Fallon Veterinary Services, Inc.

Caring for large and small animals

We will continue to add new content to our site in the coming days.

Holiday Closings

Dr. O'Fallon won't be taking emergency calls during the weekend of Memorial Day.
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Hours of Operation
- Mon - Wed: 7:30 am - 5:30 pm
- Thu: 7:30 am - 8:30 pm
- Fri: 7:30 am - 5:30 pm
- Sat - Sun: Closed