There are more than 123,000 physician groups in the U.S., with the Panorama City-based Southern California Permanente Medical Group being the largest based on its number of physicians, according to Feb. 28 data from Definitive Healthcare.
The 25 largest physician groups in the U.S. and their numbers of physicians:
1. Southern California Permanente Medical Group (Pasadena): 13,547
2. The Permanente Medical Group (Oakland, Calif.): 11,209
3. Select Physical Therapy (King of Prussia, Pa.): 9,055
4. HCA Florida Healthcare Physicians (Davie): 7,192
5. Mayo Clinic Physicians (Rochester, Minn.): 5,554
6. University of Pittsburgh (Pa.) Physicians: 5,401
7. NYU Langone Health Physicians (New York City): 5,089
8. Northwestern Medical Group (Chicago): 5,046
9. HealthCare Partners IPA (Garden City, N.Y.): 5,022
10. Northwell Health Physician Partners (New Hyde Park, N.Y.): 4,909
11. RWJBarnabas Health Medical Group (West Orange, N.J.): 4,607
12. Ascension Medical Group (St. Louis): 4,585
13. Penn Medicine Physicians (Philadelphia): 4,238
14. Banner Health Physicians (Phoenix): 4,063
15. Mercy Clinic Physicians (Chesterfield, Mo.): 3,938
16. Beaumont Health Physicians (Dearborn, Mich.): 3,936
17. Geisinger Health Physicians (Danville, Pa.): 3,872
18. US Anesthesia Partners (Dallas): 3,761
19. Healthcare Associates in Medicine (Staten Island, N.Y.): 3,615
20. Hill Physicians Medical Group (San Ramon, Calif.): 3,573
21. Advocate Medical Group (Downers Grove, Ill.): 3,533
22. Lancaster (Pa.) General Health Physicians: 3,434
23. Cleveland Clinic: 3,351
24. Piedmont Healthcare Physicians (Atlanta): 3,307
25. Mount Sinai Doctors (New York City): 3,287