Largest groups
| Group | City | Clinicians |
|---|
| Spectrum Health Primary Care Partners | Grand Rapids | 190 |
| Regents Of The University Of Michigan | Ann Arbor | 150 |
| Northstar Anesthesia Of Michigan Iii PLLC | Royal Oak | 117 |
| Anesthesia Associates Of Ann Arbor PLLC | Ypsilanti | 96 |
| Henry Ford Health System | Detroit | 87 |
| Anesthesia Services Associates PC | Rochester | 64 |
| Anesthesia Medical Consultants, PC | Wyoming | 54 |
| Northstar Anesthesia Of Michigan PLLC | Detroit | 52 |
| West Michigan Anesthesia PC | Grand Rapids | 44 |
| Saint Mary'S Health Services | Grand Rapids | 43 |
| Edward W Sparrow Hospital Association | Lansing | 40 |
| Mymichigan Medical Center Midland | Midland | 40 |
| W. A. Foote Memorial Hospital, INC. | Jackson | 36 |
| Kalamazoo Anesthesiology P C | Kalamazoo | 36 |
| Munson Medical Group | Traverse City | 26 |
| Munson Medical Center | Traverse City | 24 |
| St John Anesthesiologists, PC | Detroit | 21 |
| Northland Anesthesia Associates PC | Southfield | 20 |
| Huron Gastroenterology Associates PC | Ypsilanti | 20 |
| Providence Park Anesthesia Associates, PC | Novi | 19 |
| Long Lake Anesthesiology Consultants Plc | Troy | 18 |
| Pediatric Anesthesia Associates PC | Detroit | 17 |
| Henry Ford West Bloomfield Hospital | West Bloomfield | 17 |
| Novi Aas LLC | Novi | 14 |
| Macatawa Anesthesia PC | Holland | 14 |
Group size mix
| Clinicians per group ID | Group IDs |
|---|
| 1 | 31 |
| 2 to 4 | 34 |
| 5 to 9 | 19 |
| 10 to 24 | 18 |
| 25 or more | 15 |
Source: CMS Doctors and Clinicians National Downloadable File. Counts are Medicare enrollment records, not a full census.
