| cancer care center of o'fallon | 1.87 | 0.8 | 7459 | 30 | 41 |
| cancer care center o'fallon il | 1.9 | 0.5 | 799 | 30 | 24 |
| cancer center o'fallon il | 0.82 | 1 | 8596 | 25 | 69 |
| cancer care o'fallon il | 1.72 | 0.1 | 5927 | 23 | 26 |
| cancer care specialists o'fallon il | 1 | 0.7 | 8301 | 35 | 36 |
| cancer care specialists of illinois o'fallon | 0.84 | 0.6 | 5138 | 44 | 89 |
| cancer center fall river | 0.53 | 0.9 | 4947 | 24 | 100 |
| o'fallon family medicine clinic | 1.5 | 0.7 | 1551 | 31 | 24 |
| fallon county medical center | 0.54 | 0.7 | 4410 | 28 | 79 |
| o'fallon medical center o'fallon il | 0.1 | 0.4 | 1290 | 35 | 2 |
| psychiatric care and research center o'fallon | 0.99 | 0.3 | 5171 | 45 | 73 |
| fallon health community care | 0.86 | 0.8 | 5634 | 28 | 59 |
| family eye care of o'fallon | 1.7 | 0.1 | 8109 | 27 | 55 |
| fallon christian life center | 0.75 | 0.8 | 4060 | 28 | 54 |
| fallon family wellness center | 0.85 | 0.5 | 1313 | 29 | 23 |
| catholic church in o'fallon | 1 | 1 | 6339 | 27 | 37 |
| wellness center o'fallon mo | 1.6 | 0.3 | 8582 | 27 | 4 |
| o'fallon animal emergency clinic | 1.38 | 1 | 9679 | 32 | 76 |
| fallon health community foundation | 0.83 | 0.7 | 6587 | 34 | 43 |
| fallon walk in clinic | 1.93 | 0.5 | 8399 | 21 | 68 |
