Updated October 2026

Medical groups in Pennsylvania

Medical group directory
Pennsylvania

Medical groups: 3,715
Multi-specialty: 670
Single-specialty: 3,045
More than one site: 1,810
100+ physicians: 89

There are 3,715 medical groups in Pennsylvania with a Medicare PAC ID. University of Pittsburgh Physicians, Department of Radiology is the largest, with 3,361 Pennsylvania physicians. University of Pennsylvania has the most physicians across its groups, 4,143, and 71% of Pennsylvania groups are independent.

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University of Pittsburgh Physicians, Department of Radiology is the largest medical 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. 89 Pennsylvania groups have 100 or more physicians.

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Medical groups in Pennsylvania, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	University of Pittsburgh Physicians, Department of RadiologyPittsburgh · 503 sites	Parent on file	3,361	6,646	Decision makers
2	Penn Medicine Lancaster General HealthLancaster · 282 sites	Parent on file	2,843	4,783	Decision makers
3	GeisingerDanville · 371 sites	Parent on file	2,514	4,577	Decision makers
4	Lehigh Valley Physician Group (LVPG)Allentown · 272 sites	Parent on file	1,713	3,229	Decision makers
5	St. Luke's South Mountain Family PracticeBethlehem · 384 sites	Parent on file	1,707	3,015	Decision makers
6	GeisingerDanville · 109 sites	Parent on file	1,580	2,575	Decision makers
7	WellSpan Digestive HealthYork · 281 sites	Parent on file	1,568	2,959	Decision makers
8	Phoenix Physical TherapyState College · 450 sites	Parent on file	1,554	2,490	Decision makers
9	Penn State Health Milton S. Hershey Medical CenterHershey · 86 sites	Parent on file	1,394	2,205	Decision makers
10	AHN Primary Care - Family Med Associates at H+W Pavilion Bethel ParkBethel Park · 219 sites	Parent on file	1,320	3,056	Decision makers
11	Temple Faculty PhysiciansPhiladelphia · 78 sites	Parent on file	1,219	1,696	Decision makers
12	CHCA Allergy & ImmunologyPhiladelphia · 65 sites	Parent on file	1,123	1,411	Decision makers
13	UPMC Pinnacle Health SystemsHarrisburg · 244 sites	Parent on file	1,015	1,960	Decision makers
14	Main Line HealthNewtown Square · 118 sites	Parent on file	917	1,525	Decision makers
15	Tower Health Medical GroupBirdsboro · 117 sites	Parent on file	889	1,337	Decision makers
16	Einstein Gastroenterology AssociatesPhiladelphia · 115 sites	Parent on file	715	1,147	Decision makers
17	Stull, Jarvis, and Spinola Internal Medicine Associates-UPMCPittsburgh · 288 sites	Parent on file	701	1,326	Decision makers
18	St. Luke's Physicians Group - St. Luke's General Surgery - BethlehemBethlehem · 59 sites	Parent on file	636	1,093	Decision makers
19	Clinical Care Associates (CCA), Penn MedicineRadnor · 100 sites	Parent on file	600	1,005	Decision makers
20	Penn State Health Medical GroupHarrisburg · 110 sites	Parent on file	533	965	Decision makers
21	UPMC HamotPittsburgh · 75 sites	Parent on file	522	898	Decision makers
22	NovaCare RehabilitationMechanicsburg · 208 sites	Parent on file	445	783	Decision makers
23	Penn Medicine Lancaster General Health Physicians, Behavioral HealthLancaster · 108 sites	Parent on file	443	859	Decision makers
24	Susquehanna Health SystemWilliamsport · 52 sites	Parent on file	412	772	Decision makers
25	Penn Medicine Lancaster General HealthLancaster · 49 sites	Parent on file	407	785	Decision makers
26	Abington Pulmonary & Critical Care AssociatesAbington · 57 sites	Parent on file	406	627	Decision makers
27	Guthrie Medical GroupSayre · 124 sites	Parent on file	394	748	Decision makers
28	Tower Health Medical GroupPhoenixville · 40 sites	Parent on file	391	485	Decision makers
29	Richboro MedicalRichboro · 93 sites	Parent on file	385	599	Decision makers
30	Trinity Health Mid-Atlantic Medical GroupNewtown · 68 sites	Parent on file	381	539	Decision makers
31	Crozer Health Medical Group (CHMG)Chester · 59 sites	Parent on file	377	526	Decision makers
32	Excela Health Medical Group (EHMG)Greensburg · 85 sites	Parent on file	372	698	Decision makers
33	Tower Health Medical Group Family Medicine - PottstownPottstown · 40 sites	Parent on file	368	443	Decision makers
34	Jefferson Community PhysiciansPhiladelphia · 84 sites	Parent on file	366	612	Decision makers
35	Penn Highlands DuBoisDu Bois · 52 sites	Parent on file	306	595	Decision makers
36	Lehigh Valley Physician Group (LVPG), PoconoEast Stroudsburg · 80 sites	Parent on file	302	561	Decision makers
37	Temple ReadyCare-NortheasternPhiladelphia · 82 sites	Parent on file	300	400	Decision makers
38	NovaCare RehabilitationMechanicsburg · 120 sites	Parent on file	298	576	Decision makers
39	Reading Hospital Cardiology - West ReadingWest Reading · 24 sites	Parent on file	280	431	Decision makers
40	Pinnacle Health Regional PhysiciansHarrisburg · 94 sites	Parent on file	279	441	Decision makers
41	Lehigh Valley Physician Group - SchuylkillPottsville · 50 sites	Parent on file	276	471	Decision makers
42	St. Christopher's Pediatric Associates Emergency Medicine - E. Erie AvenuePhiladelphia · 36 sites	Parent on file	262	392	Decision makers
43	Einstein Physicians OlneyPhiladelphia · 56 sites	Parent on file	244	296	Decision makers
44	Mount Nittany Physician GroupState College · 86 sites	Parent on file	242	403	Decision makers
45	Lehigh Valley Physician Group-HazletonHazleton · 45 sites	Parent on file	240	388	Decision makers
46	Holy Redeemer Physician ServicesMeadowbrook · 42 sites	Parent on file	231	306	Decision makers
47	Saint Vincent Family MedicineErie · 41 sites	Parent on file	227	436	Decision makers
48	UPMC Primary Care, Williamsburg Family PracticeWilliamsburg · 14 sites	Parent on file	222	334	Decision makers
49	BHS Benbrook Gastroenterology AssociatesButler · 82 sites	Parent on file	212	524	Decision makers
50	Valley Health Partners Community Health CenterAllentown · 32 sites	Parent on file	211	318	Decision makers

Showing 1 to 10 of 3,715 medical groups in Pennsylvania

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

University of Pennsylvania has the most physicians in Pennsylvania medical groups, with 4,143 across 24 groups

Dmand AI maps every medical group to its parent organization, up to the health system or platform at the top. 105 parent organizations have two or more Pennsylvania medical groups. Among health systems, University of Pittsburgh Medical Center has the most groups, 51. Each clinician counts once per parent organization.

Parent organizations with the most Pennsylvania medical groups
#	Parent organization	Pennsylvania groups	Physicians	HCPs
1	University of PennsylvaniaAcademic health system	24	4,143	7,209
2	Thomas Jefferson UniversityAcademic health system	29	3,956	6,824
3	University of Pittsburgh Medical CenterHealth system	51	3,794	7,321
4	University of PittsburghAcademic health system	3	3,367	6,671
5	Risant HealthHealth system	4	2,525	4,599
6	Highmark HealthHealth system	24	2,032	4,394
7	Penn StateAcademic health system	6	1,848	3,122
8	St. Luke's University Health NetworkHealth system	19	1,846	3,364
9	WellSpan HealthHealth system	13	1,789	3,391
10	Phoenix Physical TherapyPhysician practice platform	4	1,554	2,493

Top 10 of 105 parent organizations with two or more Pennsylvania groups

University of PennsylvaniaAcademic health system · 24 Pennsylvania medical groups
Penn Medicine Lancaster General HealthMulti-specialty group · Lancaster
Clinical Care Associates (CCA), Penn MedicineMulti-specialty group · Radnor
22 more Pennsylvania groups and their practice sites

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.

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Source: Dmand AI Org Hierarchy Data

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Dmand AI maps the owners, administrators and physician leaders at each of the 3,715 Pennsylvania medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.

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71% of Pennsylvania medical 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 medical groups by ownership

Independent2,64971%
Health system or hospital48313%
Platform or corporate owner2477%
Community or government1674%
Other organization1695%

Source: Dmand AI Org Hierarchy Data

595 Pennsylvania medical groups practice at a hospital site

Beyond their own offices, groups practice at the sites of care linked to them in the org hierarchy. A group can practice at several kinds of site, so the shares overlap.

Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data

Primary care groups are the most common medical groups in Pennsylvania, with 991

Each group is counted once, under its main specialty. Behavioral and mental health groups are second, with 686, and 670 Pennsylvania groups are multi-specialty.

Source: Dmand AI Professional Profile Data

76,718 Pennsylvania HCPs work in Pennsylvania medical groups, 35,191 of them physicians

Each clinician is counted once, across every Pennsylvania group they are linked to. Only clinicians with a Pennsylvania address are counted.

HCPs in Pennsylvania medical groups by type

Physicians (MD, DO)35,19146%
Nurses and nurse practitioners14,97520%
Physician assistants9,35312%
Behavioral health clinicians6,9149%
Therapists (PT and OT)4,4576%
Other HCPs5,8288%

Source: Dmand AI Affiliation Data

Philadelphia has the most medical groups in Pennsylvania, with 299

299medical groups in Philadelphia 225medical groups in Pittsburgh 83medical groups in Mechanicsburg 82medical groups in Lancaster 73medical groups in Erie 69medical groups in Allentown

More Pennsylvania cities with medical groups

Source: Doctors and Clinicians National Downloadable File (CMS)

Each Pennsylvania medical 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 medical group directory

Sources for the data on this page
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 inaccuracy Remove my information

The directory lists groups with a Medicare PAC ID.

FAQ

Frequently asked questions about medical groups in Pennsylvania

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many medical groups are in Pennsylvania?

There are 3,715 medical groups in Pennsylvania with a Medicare PAC ID: 670 multi-specialty and 3,045 single-specialty.

What is the largest medical group in Pennsylvania?

University of Pittsburgh Physicians, Department of Radiology in Pittsburgh, with 3,361 physicians and 6,646 HCPs with a Pennsylvania address. Penn Medicine Lancaster General Health is second with 2,843, and Geisinger is third with 2,514.

Which health system has the most medical groups in Pennsylvania?

By physicians, University of Pennsylvania, with 4,143 across 24 groups, followed by Thomas Jefferson University with 3,956 and University of Pittsburgh Medical Center with 3,794.

How many Pennsylvania medical groups are independent?

2,649, or 71%, have no larger parent organization in the Dmand AI org hierarchy. 483 belong to a health system or hospital and 247 to a physician platform or corporate owner.

How many Pennsylvania medical groups practice at a hospital?

595 Pennsylvania groups practice at a hospital site linked to them in the Dmand AI org hierarchy.

How do I find a medical group's NPI or PAC ID?

Each medical group profile lists the group NPI and Medicare PAC ID at the top, with the main address and phone number. The NPI comes from the NPPES NPI Registry and the PAC ID from CMS Medicare enrollment.

How do I find decision makers at Pennsylvania medical groups?

Open a group's profile for its parent organization and leaders, then get work emails and mobile numbers through Dmand AI's healthcare waterfall enrichment. 30 days free, self-serve, no credit card.

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