Here are the 15 groups with the most physicians:
1. The Permanente Medical Group: 10,007
2. Southern California Permanente Medical Group: 9,584
3. Ascension Medical Group: 6,300
4. HealthCare Partners IPA: 5,029
5. Mayo Clinic Physicians: 4,690
6. Hill Physicians Medical Group: 3,677
7. Advocate Aurora Medical Group: 3,612
8. North Shore Health & Hyperbarics: 3,580
9. Northwell Health Physician Partners: 3,530
10. Cleveland Clinic: 3,302
14. NYU Langone Medical Group: 3,300
11. Mount Sinai Doctors: 3,293
12. Brown & Toland Physicians: 3,243
13. Beaumont Medical Group: 2,921
15. Massachusetts General Physicians Organization: 2,602
Editor’s Note: This article was edited May 10 at 10:50 a.m. to reflect updated data from listed organizations. The original list ranked Texas Health Physicians Group, which has around 600 physicians, among the largest physician groups.