Largest groups
| Group | City | Clinicians |
|---|
| Washington University | Saint Louis | 142 |
| Western Anesthesiology Associates INC | Saint Louis | 87 |
| The Curators Of The University Of Missouri | Columbia | 56 |
| Saint Lukes Physician Group INC | Kansas City | 55 |
| Ssm Health Slu Hospital Anesthesia Physician Billing LLC | Saint Louis | 50 |
| Metro-West Anesthesia Group INC | Saint Charles | 40 |
| Ssm Health Care Group | Saint Louis | 38 |
| Ozark Anesthesia Associates INC | Springfield | 31 |
| Mercy Clinic Springfield Communities | Springfield | 24 |
| South County Anesthesia Associates LTD | Saint Louis | 21 |
| Meritas Health Corporation | North Kansas City | 20 |
| Missouri Baptist Medical Center | Saint Louis | 19 |
| Heartland Regional Medical Center | Saint Joseph | 19 |
| Northstar Anesthesia Of Missouri LLC | Joplin | 18 |
| Truman Medical Center Incorporated | Kansas City | 17 |
| Comprehensive Anesthesia Care PC | Chesterfield | 17 |
| The Childrens Mercy Hospital | Kansas City | 17 |
| Mid-West Anesthesia Partners LLC | Town And Country | 15 |
| Saint Francis Medical Center | Cape Girardeau | 12 |
| Missouri Hb Medical Services LLC | Kirksville | 12 |
| Freeman-Oak Hill Health System | Joplin | 11 |
| Mid-America Anesthesia Consultants PC | Columbia | 11 |
| Capital Anesthesia Solutions Of Missouri LLC | Kansas City | 11 |
| Hannibal Regional Healthcare System INC | Hannibal | 11 |
| Southeast Missouri Hospital Physicians LLC | Cape Girardeau | 9 |
Group size mix
| Clinicians per group ID | Group IDs |
|---|
| 1 | 30 |
| 2 to 4 | 18 |
| 5 to 9 | 8 |
| 10 to 24 | 16 |
| 25 or more | 8 |
Source: CMS Doctors and Clinicians National Downloadable File. Counts are Medicare enrollment records, not a full census.
