Largest primary care groups in Pennsylvania
- Groups
- 991
- Internal Medicine groups
- 462
- Family Medicine groups
- 310
- Internal medicine specialists
- 8,834
- Family physicians
- 2,350
There are 991 primary care groups in Pennsylvania with a Medicare PAC ID: 462 internal medicine, 310 family medicine, 155 nurse practitioner, 48 physician assistant and 15 general practice. Penn Medicine Lancaster General Health is the largest internal medicine group, with 972 internal medicine specialists, and Phoenix Physical Therapy the largest family medicine group, with 604 family physicians.
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University of Pittsburgh Physicians, Department of Radiology is the largest primary care group in Pennsylvania, with 3,361 physicians
Ranked by physicians with a Pennsylvania address linked to each group. Penn Medicine Lancaster General Health is second with 2,843, and Geisinger third with 2,514. 68 Pennsylvania groups have 100 or more physicians.
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Showing 1 to 10 of 991 primary care groups in Pennsylvania
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Penn Medicine Lancaster General Health is the largest internal medicine group in Pennsylvania, with 972 internal medicine specialists
Ranked by internal medicine specialists with a Pennsylvania address linked to each group whose main sub-specialty is internal medicine. University of Pittsburgh Physicians, Department of Radiology is second with 853, and Geisinger third with 535.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Phoenix Physical Therapy is the largest family medicine group in Pennsylvania, with 604 family physicians
Ranked by family physicians with a Pennsylvania address linked to each group whose main sub-specialty is family medicine. Penn Medicine Lancaster General Health Physicians, Behavioral Health is second with 185, and NovaCare Rehabilitation third with 155.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Empatia Palliative Care is the largest nurse practitioner group in Pennsylvania, with 30 nurse practitioner specialists
Ranked by nurse practitioner specialists with a Pennsylvania address linked to each group whose main sub-specialty is nurse practitioner. Peace of Mind Psychiatry is second with 10, and Novus ACS third with 10.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Solutionz LLC - Nitin Sheth MD and Internists Associates have the most physician assistant specialists of any Pennsylvania physician assistant group, with 7 each
Ranked by physician assistant specialists with a Pennsylvania address linked to each group whose main sub-specialty is physician assistant. MedSurg Urgent Care is third with 6. Nine of the ten are independent.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
AFRA Wound Care is the largest general practice group in Pennsylvania, with 2 general practice specialists
Ranked by general practice specialists with a Pennsylvania address linked to each group whose main sub-specialty is general practice. Medical Profesional Service PC is second with 1, and Dr John Trzesniowski LLC third with 1.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
University of Pennsylvania has the most physicians in Pennsylvania primary care groups, with 4,077 across 16 groups
Dmand AI maps every medical group to its parent organization, up to the health system or platform at the top. 41 parent organizations have two or more Pennsylvania primary care groups. Among health systems, University of Pittsburgh Medical Center has the most groups, 28. Each clinician counts once per parent organization.
See every medical group, site and clinician under University of Pennsylvania
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
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Dmand AI maps the owners, administrators and physician leaders at each of the 991 Pennsylvania primary care groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
58% of Pennsylvania 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.
Pennsylvania primary care groups by ownership
- Independent572
- Health system or hospital250
- Platform or corporate owner50
- Community or government38
- Other organization81
Sites of care beyond their own offices
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Source: Dmand AI Org Hierarchy Data
227 Pennsylvania primary care groups practice at a hospital site, and 66 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.
Pennsylvania primary care groups by site of care
- Hospitals227
- Skilled nursing facilities66
- FQHCs65
- Ambulatory surgery centers39
- Therapy and rehab centers25
- Rural health clinics16
- Hospices10
- Dialysis centers10
- Behavioral health facilities9
- Home health agencies9
Clinicians in Pennsylvania primary care groups
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Philadelphia has the most primary care groups in Pennsylvania, with 113
More Pennsylvania cities with primary care groups
- King Of Prussia16
- Lancaster16
- Allentown15
- Camp Hill13
- Bethlehem12
- Johnstown12
- Wilkes Barre10
- Bryn Mawr9
- Doylestown9
- Langhorne9
- Newtown9
- Wyomissing9
- Du Bois8
- Meadville8
- West Chester8
Source: Doctors and Clinicians National Downloadable File (CMS)
Each Pennsylvania 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
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Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data
Sources for the Pennsylvania 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 Pennsylvania
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What is the largest internal medicine group in Pennsylvania?
Penn Medicine Lancaster General Health, based in Lancaster, with 972 internal medicine specialists and 4,783 HCPs. University of Pittsburgh Physicians, Department of Radiology is second with 853.
What is the largest family medicine group in Pennsylvania?
Phoenix Physical Therapy, based in State College, with 604 family physicians and 2,490 HCPs. Penn Medicine Lancaster General Health Physicians, Behavioral Health is second with 185.
How many primary care groups are in Pennsylvania?
There are 991 primary care groups in Pennsylvania with a Medicare PAC ID: 462 internal medicine, 310 family medicine, 155 nurse practitioner, 48 physician assistant and 15 general practice. Between them they have 8,834 internal medicine specialists, 2,350 family physicians, 402 nurse practitioner specialists, 129 physician assistant specialists and 5 general practice specialists.
Which companies own the most primary care groups?
By physicians, University of Pennsylvania, with 4,077 across 16 groups, followed by Thomas Jefferson University with 3,768 and University of Pittsburgh Medical Center with 3,323.
How many Pennsylvania primary care groups are independent?
572, or 58%, have no larger parent organization in the Dmand AI org hierarchy. 250 belong to a health system or hospital and 50 to a physician platform or corporate owner.
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