Top 25 physician groups by the number of locations

In today’s shifting healthcare landscape, physician groups continue to play an important role in the care continuum as they offer an alternative location to visiting a hospital for care.

What is a physician group?

A physician group refers to one or more physicians operating as an organization to provide care. They typically provide outpatient care rather than inpatient care services like you may receive in a hospital.

Physician groups are traditionally smaller than a hospital and tend to focus on a single specialty, giving them more flexibility in terms of service offerings, operating hours and geographical coverage.

Physician groups may be associated with a larger integrated delivery network, or they may be operate as an independent entity.

The Definitive Healthcare PhysicianGroupView product tracks over 126,000 physician groups. Below is a list of the top 25 physician groups by the number of locations.

25 physician groups with the most locations

RankPhysician Group NameDefinitive IDHeadquarters CityStateMain Specialty# of Locations# of Physicians# of Group Practice Members
1.Select Physical Therapy705013King Of PrussiaPATherapy- Physical Therapist18822,7575,141
2.Beaumont Health Physicians752078WestlandMIInternal Medicine15753,1154,020
3.ATI Physical Therapy955314BolingbrookILTherapy- Physical Therapist934232,744
4.Ascension Medical Group717580IndianapolisINFamily Practice8554,4506,707
5.CHI Health Clinic Physicians550226OmahaNEFamily Practice8346991,384
6.MaineHealth Physicians1042954BiddefordMEFamily Practice8301,8263,090
7.NYU Langone Health Physicians577713Staten IslandNYInternal Medicine8003,4564,046
8.IU Health Physicians550386AvonINInternal Medicine7409191,257
9.Northwell Health Physician Partners550489PlainviewNYEmergency Medicine7344,6976,939
10.MDVIP Inc939938Boca RatonFLInternal Medicine726876892
11.Athletico Physical Therapy955527Oak BrookILTherapy - Physical Therapist699651,753
12.Mercy Clinic Physicians719401ArdmoreOKInternal Medicine6822,2453,438
13.ProMedica Physicians551196MonroeMIFamily Practice6067941,434
14.Planned Parenthood955470LubbockTXObstetrics/Gynecology5974691,367
15.Adventist Health Physicians1047687RosevilleCAN/A569N/AN/A
16.AdventHealth Medical Group550707MaitlandFLPsychology - Clinical Psychologist5662,3334,679
17.MultiCare Medical Group550478TacomaWAFamily Practice5611,0431,931
18.Rochester Regional Health System Physicians589885RochesterNYInternal Medicine5519551,192
19.Centura Health Physician Group550285AuroraCOFamily Practice549376589
20.St Luke’s University Health Network Physicians550612EastonPAFamily Practice5481,2481,926
21.Mercy Health Physicians1011464LimaOHFamily Practice5311,6572,631
22.Target Optical1044806BirminghamALOptometry5311458
23.Concentra678137AddisonTXFamily Practice5235851,211
24.Legacy Medical Group552130Lake OswegoORInternal Medicine5131,4942,041
25.Ochsner Health Physicians1001331New OrleansLAInternal Medicine4712,2303,520

Fig 1.Data from Definitive Healthcare PhysicianGroupView product. Physician group data is sourced from proprietary research and aggregated from provider Public Use File (PUF) data. Data accurate as June 2022.

Which physician group has the most locations?

Select Physical Therapy tops the list with over 1,880 locations within the United States.  Headquartered in King of Prussia, Pennsylvania, Select Physical Therapy operates locations across the country in 39 states and Washington, D.C.

In second place is Beaumont Health Physicians with 1,575 locations. Unlike Select Physical Therapy, Beaumont Health Physicians tends to operate primarily in Michigan where the organization is headquartered.

Rounding out the top three is ATI Physical Therapy with over 900 locations. ATI Physical Therapy operates across 25 states with its headquarters residing in Illinois.

Physician groups that specialized in family practice or internal medicine make up the majority of the list. However, physician groups that specialize in physical therapy make up the majority of the top three largest physician groups by the number of locations.

Does the number of group practice members impact the number of locations for physician groups?

The number of physicians and the number of group practice members (which includes both physicians and non-physicians such as nurses, physical therapists, social workers and others) does not appear to impact the number of locations a physician group has.

For example, ATI Physical Therapy, which comes in third based on the number of locations, has less than half the number of group practice members as number nine Northwell Health Physician Partners.

The location of a physician group can have one provider working out of them or they can have multiple providers working out of the same location, which may account for the discrepancy. Groups with more locations but fewer group practice members likely have small individual practice locations with one or two providers operating out of each location.

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