SK&A: 20 medical groups with the most physicians — The Permanente Groups top the list

SK&A released the 2017 update of its "Top 50 Medical Groups: Market Insights Report" this month.

SK&A named the 50 largest medical groups by the number of affiliated physicians and included information on the number of offices per group and average number of physicians per office. The organization maintains information on 2.2 million healthcare practitioners.

Contact Laura Dyrda at with questions or comments about this list.

Here are the top 20 groups by the number of physicians, per the SK&A report:

1. The Permanente Medical Groups: >20,000

  • Southern California Permanente Medical Group (Pasadena): 8,400
  • The Permanente Medical Group (Oakland, Calif.): 8,000
  • Group Health Physicians/Group Health Permanente: Nearly 1,400 (Includes physicians, PAs midwives, mental health specialists, osteopaths, and optometrists focused on prevention, evidence-based practices and patient-centered care)
  • Mid-Atlantic Permanente Medical Group (Rockville, Md.): 1,250
  • Northwest Permanente, P.C. (Portland, Ore.): 1,245
  • Colorado Permanente Medical Group, P.C. (Denver): 1,195
  • Hawaii Permanente Medical Group (Honolulu): 600+
  • The Southeast Permanente Medical Group, Inc. (Atlanta): 500 

2. Northwell Health Physician Partners (Syosset, N.Y.): 2,700

3. Cleveland Clinic: 2,251

4. Mayo Clinic (Jacksonville, Fla.): 1,811

5. Mercy Clinic (Springfield, Mo.): 1,768

6. Physician Affiliate Group of New York (New York City): 1,511*

7. Carolinas HealthCare System Medical Group (Charlotte, N.C.): 1,469

8. IU Health Physicians (Indianapolis):1,408

9. UW Health Clinics (Madison, Wis.): 1,356

10. Aurora Medical Group (Sheboygan): 1,321

11. Henry Ford Medical Group (Detroit): 1,266

12. Novant Health Medical Group (Winston-Salem, N.C.): 1,244

13. Palo Alto Medical Foundation Clinic (Santa Cruz, Calif.): 1,180

14. Private Diagnostic Clinic (Durham, N.C.): 1,126

15. Greeville Health System (S.C.): 997*

16. Advocate Medical Group (Park Ridge, Ill.): 991

17. University of Washington Physicians (Seattle): 960

18. Health Texas Provider Network (Plano): 941

19. Emory Clinic (Atlanta): 924

20. UCLA Medical Group: 921


*This list was modified on Jan. 9, 2017 to include physician groups with a large number of employed physicians that belong on this list but were not listed in the SK&A report. The groups denoted with the asterisk were not mentioned on the SK&A report and replaced the following groups, which do appear on the SK&A report:

Scott & White Clinic (Temple, Texas): 909

Pediatrix Medical Group (Fort Worth, Texas): 888


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