Animal Emergency Clinic
Emergency hospital
334 Fort Zumwalt Square
O’Fallon, MO 63366
Veterinarians in O'Fallon, MO
6 veterinary practices listed in O'Fallon, Missouri. Call ahead to check hours and whether the practice can see your pet.
6 practices
3 Animal Hospital
1 Emergency hospital
1 In Store Clinic
If this is an emergency, call first
Phone the practice before you travel. Hours change, and not every clinic listed here takes emergencies or is open out of hours. If your pet has collapsed, is struggling to breathe, is bleeding heavily, cannot urinate, or has eaten something toxic, go to the nearest emergency animal hospital now.
ASPCA Animal Poison Control: (888) 426-4435 — a consultation fee may apply.
All practices in O'Fallon
Banfield O'Fallon
In Store Clinic
2242 Hwy K
O'Fallon, MO 63368
Gentle Doctor Animal Hospital
Animal Hospital
3079 State Hwy K
O'Fallon, MO 63368
The Pet Doctor – O’Fallon
Animal Hospital
2301 Technology Dr
O'Fallon, MO 63368
UrgentVet O’Fallon
Urgent care
2963 State Highway K
O\'Fallon, MO 63368
VCA All Creatures-Cloud Animal Hospital
Animal Hospital
2205 Highway K
O'Fallon, MO 63368
About this directory
This directory is built from a dataset of corporate- and private-equity-owned veterinary practices. It does not yet include independently owned practices, so it is not a complete list of veterinarians in any area. Ownership is shown on every listing.
When to call a vet rather than wait
Some signs need same-day attention even if your pet seems otherwise bright. Call a practice straight away if you see:
- Difficulty breathing, or open-mouth breathing in a cat
- Repeated vomiting, or vomiting with no appetite
- Straining to urinate, especially a male cat
- A swollen, hard or painful abdomen
- Pale, white or yellow gums
- Collapse, seizures or sudden weakness
- Heavy bleeding, or a wound that gapes
- Known contact with something toxic