There are more than 125,000 physician groups in the U.S., ranging in size from a solo physician to more than 13,500 physicians.
Here are the 20 largest medical groups based on their number of locations, according to a new analysis from Definitive Healthcare provided to Becker's:
1. Hill Physicians Medical Group (Walnut Creek, Calif.): 2,278
2. Ascension Medical Group (Indianapolis): 965
3. Intermountain Healthcare Physicians (Sandy, Utah): 944
4. ATI Physical Therapy (Bolingbrook, Ill.): 904
5. Athletico Physical Therapy (Oak Brook, Ill.): 902
6. Hanger Clinic (Anniston, Ala.): 759
7. AdventHealth Medical Group (Maitland, Fla.): 722
8. MDVIP (Boca Raton, Fla.): 722
9. Select Physical Therapy (New Port Richey, Fla.): 701
10. UCHealth Physicians (Denver): 697
11. MaineHealth Physicians (Biddeford): 685
12. LifeStance Health (Scottsdale, Ariz.): 679
13. Atrium Health Medical Group (Charlotte, N.C.): 672
14. Mercy Clinic Physicians (Ardmore, Okla.): 665
15. Northwell Health Physician Partners (Plainview, N.Y.): 660
16. Indiana University Health Physicians (Avon): 626
17. Holy Cross Health Physicians (Silver Spring, Md.): 621
18. Healogics (Jacksonville, Fla.): 606
19. Planned Parenthood (Lubbock, Texas): 599
20. HearingLife (Las Vegas): 590
Click here to see the 21 largest physician groups based on their total Medicare charges.