| Parker Bell Physical Medicine and Rehabilitation · Hattiesburg, MS | 181 | 341 |
| Hattiesburg Clinic Pa Ambulatory Surgical Center · Hattiesburg, MS | 165 | 295 |
| Hattiesburg Clinic Pa Clinical Laboratory · Hattiesburg, MS | 130 | 250 |
| CALLOWAY LABORATORIES INC. | 76 | 200 |
| FORREST COUNTY GENERAL HOSPITAL | 59 | 119 |
| Laboratory Corporation Of America Holdings Clinical Laboratory · Birmingham, AL | 45 | 65 |
| William Boone Diagnostic Radiology · Hattiesburg, MS | 41 | 47 |
| Juan Velez, Jr Diagnostic Radiology · Hattiesburg, MS | 36 | 47 |
| William Molpus Diagnostic Radiology · Hattiesburg, MS | 32 | 41 |
| Kenneth Duff Diagnostic Radiology · Hattiesburg, MS | 32 | 36 |
| Thomas Cole Diagnostic Radiology · Hattiesburg, MS | 32 | 39 |
| Steven Murphey Diagnostic Radiology · Hattiesburg, MS | 26 | 31 |