Animal Emergency Clinic
334 Fort Zumwalt Square · O'Fallon, MO 63366
Sun 24h; Mon 24h; Tue 24h; Wed 24h; Thu 24h; Fri 24h; Sat 24h
Veterinary clinics in O'Fallon, MO
O'Fallon, MO has 15 veterinary clinics listed on LostPet. 100% list a phone number and 93% have a website. Nearby: 49 in St. Louis and 21 in Kansas City.
Listings
Back on Track Veterinary Hospital & Rehabilitation Center
957 Waterbury Falls Dr · O'Fallon, MO 63368
Sun 07:30-18:00; Mon 07:30-17:00; Tue 07:30-18:00; Wed 07:30-17:00; Thu 07:30-17:00; Fri 08:00-13:00
Banfield Pet Hospital
2242 State Hwy K · O'Fallon, MO 63368
Sun 07:30-18:00; Mon 07:30-18:00; Tue 07:30-18:00; Wed 07:30-18:00; Thu 07:30-18:00; Fri 07:30-18:00; Sat 09:00-17:00
Bryan Road Animal Hospital
1290 Bryan Rd · O'Fallon, MO 63366
Sun 07:30-18:00; Mon 07:30-18:00; Tue 07:30-18:00; Wed 07:30-18:00; Thu 07:30-18:00
Gentle Doctor Animal Hospital
3079 State Hwy K · O'Fallon, MO 63368
Sun 07:30-18:00; Mon 07:30-18:00; Tue 07:30-18:00; Wed 07:30-18:00; Thu 07:30-18:00; Fri 08:00-13:00
Karen Baggett
VCA · O'Fallon, MO 63368
Sun 07:30-19:00; Mon 07:30-19:00; Tue 07:30-19:00; Wed 07:30-19:00; Thu 07:30-19:00; Fri 08:00-15:00
North Main Animal Hospital
1632 N Main St · O'Fallon, MO 63366
Sun 08:00-18:00; Mon 08:00-18:00; Tue 08:00-18:00; Wed 08:00-18:00; Thu 08:00-17:00; Fri 08:00-14:00
O'Fallon Animal Hospital
4681 State Hwy K · O'Fallon, MO 63368
Sun 08:00-18:00; Mon 08:00-18:00; Tue 08:00-18:00; Wed 08:00-18:00; Thu 08:00-18:00
O'Fallon Veterinary Medical Center
975 Cool Springs Industrial Dr · O'Fallon, MO 63366
Sun 08:00-17:30; Mon 08:00-17:30; Tue 08:00-17:30; Wed 08:00-17:30; Thu 08:00-17:30; Fri 08:00-12:00
The Pet Doctor - O'Fallon
2301 Technology Dr · O'Fallon, MO 63368
Sun 08:00-18:00; Mon 08:00-18:00; Tue 08:00-18:00; Wed 08:00-18:00; Thu 08:00-18:00
UrgentVet
2963 State Hwy K · O'Fallon, MO 63368
Sun 15:00-23:00; Mon 15:00-23:00; Tue 15:00-23:00; Wed 15:00-23:00; Thu 15:00-23:00; Fri 10:00-20:00; Sat 10:00-20:00
VCA All Creatures - Cloud Animal Hospital
2205 State Hwy K · O'Fallon, MO 63368
Sun 08:00-19:00; Mon 08:00-19:00; Tue 08:00-19:00; Wed 08:00-19:00; Thu 08:00-19:00; Fri 08:00-15:00
Veterinary Dental Specialists of Missouri
1012 Rondale Ct · O'Fallon, MO 63368
Sun 08:30-17:30; Mon 08:30-17:30; Tue 08:30-00:00; Wed 00:00-05:30,08:30-17:30
Veterinary Specialty Services - West
7770 Winghaven Blvd · O'Fallon, MO 63368
Sun 24h; Mon 24h; Tue 24h; Wed 24h; Thu 24h; Fri 24h; Sat 24h
Mexico Road Animal Hospital
1190 Sonderen St · O'Fallon, MO 63366
Sun 09:00-19:00; Mon 09:00-17:00; Tue 09:00-16:00; Wed 09:00-19:00; Thu 09:00-17:00; Fri 08:00-12:00
Nearby cities
St. Louis Kansas City Springfield Lee'S Summit St. Peters Wentzville Jefferson City Florissant Cape Girardeau Harrisonville
Questions
How many vet clinics are in O'Fallon?
15 are listed on this page.
Which ones list hours?
Animal Emergency Clinic, Back on Track Veterinary Hospital & Rehabilitation Center, Banfield Pet Hospital.
Lost a pet in O'Fallon? Search found pets or report a pet you found.
Groomers, boarding and trainers in O'Fallon are on PetTrader.
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Clinic data via SpectrumCare (spectrumcare.pet), published with the owner's approval on Oct 8, 2026. Data sources.