Largest primary care groups in Ohio
- 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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Showing 1 to 10 of 946 primary care groups in Ohio
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Cleveland Clinic is the largest internal medicine group in Ohio, with 1,338 internal medicine specialists
Ranked by internal medicine specialists with an Ohio address linked to each group whose main sub-specialty is internal medicine. OhioHealth Physician Group is second with 539, and Ohio State University Physicians third with 500.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
The Little Clinic is the largest nurse practitioner group in Ohio, with 445 nurse practitioner specialists
Ranked by nurse practitioner specialists with an Ohio address linked to each group whose main sub-specialty is nurse practitioner. CVS MinuteClinic is second with 156, and University Hospitals St. John Medical Center third with 47.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Kettering Health Medical Group is the largest family medicine group in Ohio, with 159 family physicians
Ranked by family physicians with an Ohio address linked to each group whose main sub-specialty is family medicine. OhioHealth Urgent Care is second with 135, and Mercy Health Physicians third with 92.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Cleveland Clinic Avon Hospital is the largest physician assistant group in Ohio, with 23 physician assistant specialists
Ranked by physician assistant specialists with an Ohio address linked to each group whose main sub-specialty is physician assistant. Waynesville Urgent Care is second with 6, and NextDoor Urgent Care & Primary Care third with 5.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Springfield Health Care Center is the largest general practice group in Ohio, with 2 general practice specialists
Ranked by general practice specialists with an Ohio address linked to each group whose main sub-specialty is general practice. CareFirst Urgent Care is second with 1.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Neo Rehab Specialists Inc and Michael E. Debs, MD, Inc. have the most clinical nurse specialist specialists of any Ohio clinical nurse specialist group, with 1 each
Ranked by clinical nurse specialist specialists with an Ohio address linked to each group whose main sub-specialty is clinical nurse specialist.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
The Cleveland Clinic Foundation has the most physicians in Ohio primary care groups, with 4,785 across 13 groups
Dmand AI maps every medical group to its parent organization, up to the health system or platform at the top. 49 parent organizations have two or more Ohio primary care groups. Among health systems, Bon Secours Mercy Health has the most groups, 46. Each clinician counts once per parent organization.
- The Cleveland Clinic Foundation
- Cleveland Clinic
- Partners Physician Group
- 11 more Ohio groups and their practice sites
See every medical group, site and clinician under The Cleveland Clinic Foundation
Org Hierarchy Explorer maps every group, site of care and clinician under the parent, with the leaders at each group.
Source: Dmand AI Org Hierarchy Data
For sales teams
Dmand AI maps the owners, administrators and physician leaders at each of the 946 Ohio primary care groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
55% of Ohio primary care groups are independent, with no larger parent organization
A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.
Ohio primary care groups by ownership
- Independent523
- Health system or hospital207
- Platform or corporate owner88
- Community or government36
- Other organization92
Sites of care beyond their own offices
See the parent organization above every Ohio group
Dmand AI maps each group to the health system, physician platform or management company above it, so you can sell to the owner, not one site.
Source: Dmand AI Org Hierarchy Data
268 Ohio primary care groups practice at a hospital site, and 70 at a skilled nursing facility
Sites of care linked to each group in the org hierarchy, beyond its own offices. A group can practice at several kinds of site.
Ohio primary care groups by site of care
- Hospitals268
- Skilled nursing facilities70
- FQHCs38
- Rural health clinics35
- Hospices28
- Ambulatory surgery centers24
- Dialysis centers17
- Behavioral health facilities15
- Therapy and rehab centers14
- Home health agencies13
Clinicians in Ohio primary care groups
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Columbus has the most primary care groups in Ohio, with 84
More Ohio cities with primary care groups
- Toledo26
- Warren14
- Youngstown14
- Beachwood13
- Akron12
- Independence12
- Westerville12
- Dublin11
- Lima11
- Westlake11
- Hamilton10
- Springfield10
- West Chester10
- Beaver Creek9
- Marion9
Source: Doctors and Clinicians National Downloadable File (CMS)
Each Ohio primary care group profile shows the parent, sites, clinicians and identifiers
- Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
- Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
- Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
- Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
- Parent organizationThe health system, platform or owner above the groupOn every profile
- Every clinician and siteThe full roster and every practice locationWith a free account
- Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
- EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account
Free account: 30 days free, self-serve, no credit card.
Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data
Sources for the Ohio primary care group list
| Data on this page | Source |
|---|---|
| Medical groups, specialties and sites | Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data |
| Parent organizations and independence | Dmand AI Org Hierarchy Data |
| Physicians and HCPs | Dmand AI Affiliation Data |
| Group NPI and PAC ID | NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS) |
Data last refreshed October 2026Report an inaccuracyRemove my information
Groups whose main specialty is primary care and that have a Medicare PAC ID.
FAQ
Frequently asked questions about primary care groups in Ohio
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is the largest internal medicine group in Ohio?
Cleveland Clinic, based in Independence, with 1,338 internal medicine specialists and 8,243 HCPs. OhioHealth Physician Group is second with 539.
What is the largest nurse practitioner group in Ohio?
The Little Clinic, based in Cincinnati, with 445 nurse practitioner specialists and 451 HCPs. CVS MinuteClinic is second with 156.
How many primary care groups are in Ohio?
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. Between them they have 7,319 internal medicine specialists, 1,693 nurse practitioner specialists, 1,489 family physicians, 75 physician assistant specialists, 3 general practice specialists and 2 clinical nurse specialist specialists.
Which companies own the most primary care groups?
By physicians, The Cleveland Clinic Foundation, with 4,785 across 13 groups, followed by University Hospitals Health System with 2,718 and OhioHealth with 1,905.
How many Ohio primary care groups are independent?
523, or 55%, have no larger parent organization in the Dmand AI org hierarchy. 207 belong to a health system or hospital and 88 to a physician platform or corporate owner.
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