Updated October 2026

Largest primary care groups in Ohio

Medical group directory
Ohio
Primary care

Groups: 946
Internal Medicine groups: 382
Nurse Practitioner groups: 307
Internal medicine specialists: 7,319
Nurse practitioner specialists: 1,693

There are 946 primary care groups in Ohio with a Medicare PAC ID: 382 internal medicine, 307 nurse practitioner, 223 family medicine, 24 physician assistant, 5 general practice and 4 clinical nurse specialist. Cleveland Clinic is the largest internal medicine group, with 1,338 internal medicine specialists, and The Little Clinic the largest nurse practitioner group, with 445 nurse practitioner specialists.

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Cleveland Clinic is the largest primary care group in Ohio, with 4,371 physicians

Ranked by physicians with an Ohio address linked to each group. University Hospitals Medical Practices is second with 1,959, and OhioHealth Physician Group third with 1,825. 58 Ohio groups have 100 or more physicians.

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Primary care groups in Ohio, ranked by physicians, 101 to 150
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
101	Walk In Urgent CareMarion · 37 sites	Parent on file	34	212	Decision makers
102	PrimaryOne HealthColumbus · 16 sites	Parent on file	34	130	Decision makers
103	Wood Health CompanyBowling Green · 16 sites	Parent on file	34	85	Decision makers
104	Fulton County Health CenterWauseon · 9 sites	Parent on file	34	75	Decision makers
105	Community Intensivists, LLCMiddlebrg Hts · 9 sites	Parent on file	34	56	Decision makers
106	HealthSource of OhioLoveland · 22 sites	Parent on file	31	77	Decision makers
107	The Kidney and Hypertension CenterCincinnati · 16 sites	Parent on file	31	42	Decision makers
108	Digestive Specialists, Inc.Dayton · 13 sites	Parent on file	31	38	Decision makers
109	Wilson Health Medical GroupSidney · 17 sites	Parent on file	30	76	Decision makers
110	Community Health Care, Inc.Norton · 16 sites	-	29	75	Decision makers
111	Coshocton Regional Medical CenterCoshocton · 6 sites	Parent on file	29	53	Decision makers
112	American Health NetworkColumbus · 15 sites	Parent on file	29	45	Decision makers
113	Hocking Valley Medical GroupLogan · 8 sites	-	29	42	Decision makers
114	Cleveland Clinic FloridaIndependence · 33 sites	Parent on file	29	30	Decision makers
115	Dayton Physicians NetworkKettering · 10 sites	-	28	50	Decision makers
116	Family Health Services of Darke County, OhioGreenville · 13 sites	Parent on file	27	84	Decision makers
117	University Hospitals Medical PracticesShaker Heights · 12 sites	Parent on file	26	64	Decision makers
118	Medicine Inpatient GroupMiddletown · 8 sites	-	26	44	Decision makers
119	Mercer Health Medical GroupColdwater · 12 sites	Parent on file	24	56	Decision makers
120	Zangmeister Cancer CenterColumbus · 120 sites	-	24	33	Decision makers
121	PriMED PhysiciansCincinnati · 21 sites	-	24	31	Decision makers
122	Pure HealthcareDayton · 6 sites	Parent on file	23	63	Decision makers
123	Lower Lights Christian Health CenterColumbus · 11 sites	Parent on file	22	75	Decision makers
124	Mercy Health PhysiciansBlue Ash · 14 sites	Parent on file	22	45	Decision makers
125	South Pointe HospitalIndependence · 10 sites	Parent on file	21	214	Decision makers
126	Cincinnati Health Department, City of Cincinnati Primary CareCincinnati · 22 sites	Parent on file	21	59	Decision makers
127	Partners In Nephrology Care LtdShaker Heights · 4 sites	-	21	35	Decision makers
128	OhioHealth Morrow County HospitalMount Gilead · 4 sites	Parent on file	20	55	Decision makers
129	Genesis Primary CareZanesville · 15 sites	Parent on file	20	49	Decision makers
130	Hospice of DaytonDayton · 4 sites	Parent on file	20	44	Decision makers
131	Hospice of the Western ReserveCleveland · 1 site	Parent on file	20	34	Decision makers
132	Hospice of the Western ReserveCleveland · 3 sites	Parent on file	19	43	Decision makers
133	The Christ Hospital Health NetworkCincinnati · 5 sites	Parent on file	19	31	Decision makers
134	Highland District HospitalHillsboro · 1 site	Parent on file	19	30	Decision makers
135	ID Consultants of Northeast OhioBeachwood · 7 sites	-	19	27	Decision makers
136	AmeriWound, LLCMayfield Heights · 6 sites	Parent on file	19	25	Decision makers
137	Hometown Urgent CareHuber Heights · 39 sites	Parent on file	18	218	Decision makers
138	ProMedica PhysiciansToledo · 16 sites	Parent on file	18	32	Decision makers
139	Bethesda Family Practice CenterCincinnati · 3 sites	Parent on file	18	25	Decision makers
140	OhioHealth Grady Memorial HospitalColumbus · 4 sites	Parent on file	18	25	Decision makers
141	Supportive HealthcareCincinnati · 10 sites	-	17	74	Decision makers
142	Oak Street Health WestownCleveland · 18 sites	Parent on file	17	67	Decision makers
143	Providence Medical GroupMoraine · 18 sites	-	17	51	Decision makers
144	Americare Kidney InstituteWestlake · 5 sites	-	17	29	Decision makers
145	Columbus Oncology & HematologyColumbus · 3 sites	-	17	27	Decision makers
146	Madison HealthLondon · 2 sites	Parent on file	17	27	Decision makers
147	Aultman Alliance Community HospitalAlliance · 1 site	Parent on file	17	20	Decision makers
148	CareFirst Urgent CareCincinnati · 61 sites	Parent on file	16	343	Decision makers
149	Pulmonary and Critical Care Consultants, Inc.Dayton · 5 sites	-	16	40	Decision makers
150	Blanchard Valley Medical PracticesFindlay · 1 site	Parent on file	16	32	Decision makers

Showing 101 to 150 of 946 primary care groups in Ohio

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

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