| Business | Phone |
| James J Needles Md 107 W 1st St, O Fallon 62269 | (618) 632-2118 |
| Family Physicians Of O'Fallon 310 N 7 Hills Rd, O Fallon 62269 | (618) 624-6181 |
| Family Physicians-Southern Il 800 E Highway 50, O Fallon 62269 | (618) 622-0934 |
| Kenneth J Wakefield Md 800 E Highway 50, O Fallon 62269 | (618) 622-9920 |