| Business | Phone |
| Animal Docs Inc 3046 Winghaven Blvd, O Fallon 63368 | (636) 561-9122 |
| Animal Emergency Clinic 334 Fort Zumwalt Sq, O Fallon 63366 | (636) 240-5496 |
| Banfield The Pet Hospital 2242 Highway K, O Fallon 63368 | (636) 272-4361 |
| Vca All Creatures Animal Hosp 2205 Highway K, O Fallon 63368 | (636) 240-8387 |
| Veterinary Care Ctr 2985 Highway K, O Fallon 63368 | (636) 379-8778 |
| O'Fallon Pet Clinic 113 W Pitman St, O Fallon 63366 | (636) 272-7730 |
| North Main Animal Hospital 1632 N Main St, O Fallon 63366 | (636) 240-1313 |
| Gentle Doctor Animal Hospital 2950 Highway K, O Fallon 63368 | (636) 272-5950 |
| Cloud Veterinary Ctr 2738 Highway K, O Fallon 63368 | (636) 240-8777 |