Updated October 2026

Largest primary care groups in Missouri

Medical group directory
Missouri
Primary care

Groups: 487
Internal Medicine groups: 230
Family Medicine groups: 136
Internal medicine specialists: 3,086
Family physicians: 928

There are 487 primary care groups in Missouri with a Medicare PAC ID: 230 internal medicine, 136 family medicine, 100 nurse practitioner, 18 physician assistant and 3 general practice. WashU Medicine Psychiatry is the largest internal medicine group, with 547 internal medicine specialists, and Mercy Clinic East Communities the largest family medicine group, with 174 family physicians.

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WashU Medicine Psychiatry is the largest primary care group in Missouri, with 2,454 physicians

Ranked by physicians with a Missouri address linked to each group. SLUCare Physician Group is second with 868, and University of Missouri Health Care third with 836. 38 Missouri groups have 100 or more physicians.

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Primary care groups in Missouri, ranked by physicians, 51 to 100
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
51	Samaritan HospitalMacon · 2 sites	Parent on file	59	76	Decision makers
52	Mercy Clinic Electrophysiology, Mercy Heart Hospital St. LouisSaint Louis · 20 sites	Parent on file	57	120	Decision makers
53	Community Medical AssociatesBrookfield · 3 sites	Parent on file	56	71	Decision makers
54	Cox Barton County HospitalLamar · 3 sites	Parent on file	55	73	Decision makers
55	CORA Physical Therapy, ArnoldArnold · 16 sites	Parent on file	51	85	Decision makers
56	Mercy Clinic GastroenterologySaint Louis · 11 sites	Parent on file	51	76	Decision makers
57	Regional Physician ServicesPoplar Bluff · 6 sites	Parent on file	49	69	Decision makers
58	Marshall Family PracticeMarshall · 13 sites	Parent on file	48	93	Decision makers
59	Mercy Hospital StoddardDexter · 13 sites	Parent on file	48	81	Decision makers
60	Mercy-GoHealth Urgent CareChesterfield · 41 sites	Parent on file	46	173	Decision makers
61	Cameron Regional Medical CenterCameron · 13 sites	Parent on file	46	86	Decision makers
62	Mercy Clinic Adult Critical CareSaint Louis · 8 sites	Parent on file	44	81	Decision makers
63	Cass Regional Medical CenterHarrisonville · 10 sites	Parent on file	44	74	Decision makers
64	Heart Care InstituteSaint Louis · 5 sites	Parent on file	44	44	Decision makers
65	Total Access Urgent CareSaint Louis · 42 sites	Parent on file	43	157	Decision makers
66	Affinia HealthcareSaint Louis · 15 sites	Parent on file	39	88	Decision makers
67	Hermann Area District HospitalHermann · 3 sites	Parent on file	37	66	Decision makers
68	Missouri Baptist Sullivan HospitalSullivan · 7 sites	Parent on file	36	76	Decision makers
69	Harrison County Community Hospital (HCCH)Bethany · 5 sites	Parent on file	36	54	Decision makers
70	P&C HealthcareIndependence · 5 sites	Parent on file	35	59	Decision makers
71	St. Louis County Department of Public HealthSaint Louis · 6 sites	Parent on file	33	48	Decision makers
72	Missouri Highlands Health CareEllington · 34 sites	Parent on file	32	97	Decision makers
73	Scotland County HospitalMemphis · 3 sites	Parent on file	32	48	Decision makers
74	Healing Arts CenterBranson · 11 sites	-	31	54	Decision makers
75	ArchWell HealthFerguson · 8 sites	Parent on file	31	53	Decision makers
76	Betty Jean Kerr People's Health CentersSaint Louis · 5 sites	Parent on file	27	54	Decision makers
77	Malden Family ClinicMalden · 33 sites	-	25	86	Decision makers
78	Mercy-GoHealth Urgent Care, East BattlefieldSpringfield · 14 sites	Parent on file	25	86	Decision makers
79	Family Care Health CentersSaint Louis · 4 sites	Parent on file	25	68	Decision makers
80	Lake Regional Medical GroupOsage Beach · 5 sites	Parent on file	25	47	Decision makers
81	OCH Evergreen ClinicSpringfield · 20 sites	Parent on file	24	84	Decision makers
82	Parkland Health CenterFarmington · 6 sites	Parent on file	24	62	Decision makers
83	Integrative Emergency ServicesWest Plains · 5 sites	Parent on file	23	36	Decision makers
84	Barnes Healthcare Management GroupColumbia · 3 sites	Parent on file	22	46	Decision makers
85	Barnes Healthcare Management GroupColumbia · 2 sites	Parent on file	22	41	Decision makers
86	Pike County Medical ClinicsLouisiana · 7 sites	Parent on file	22	37	Decision makers
87	Missouri Cancer AssociatesColumbia · 5 sites	-	22	30	Decision makers
88	Compass Health NetworkColumbia · 5 sites	Parent on file	21	36	Decision makers
89	Community Health Center of Central MissouriLinn · 10 sites	Parent on file	21	33	Decision makers
90	Mercy Hyperbaric and Wound Care - JeffersonFestus · 9 sites	Parent on file	21	30	Decision makers
91	Madison Medical CenterFredericktown · 2 sites	Parent on file	20	33	Decision makers
92	Clay Platte Family Medicine ClinicKansas City · 5 sites	-	20	30	Decision makers
93	Heart Care InstituteSaint Louis · 4 sites	Parent on file	20	29	Decision makers
94	Mercy Clinic OncologyWashington · 8 sites	Parent on file	19	32	Decision makers
95	Missouri Baptist Medical CenterSaint Louis · 3 sites	Parent on file	19	30	Decision makers
96	Missouri Heart CenterColumbia · 7 sites	-	19	27	Decision makers
97	Washington County Memorial HospitalPotosi · 4 sites	Parent on file	18	33	Decision makers
98	Hospital Medicine Services of MOIndependence · 2 sites	Parent on file	17	28	Decision makers
99	A.T. Still UniversityKirksville · 7 sites	Parent on file	17	18	Decision makers
100	Dr. Petre I Anguelinin, LLCFenton · 4 sites	Parent on file	17	18	Decision makers

Showing 51 to 100 of 487 primary care groups in Missouri

Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data

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