Updated October 2026

Internists in West Chester, PA

Internal medicine
West Chester, Pennsylvania

Internists: 58
Linked to a hospital or group: 43
Hospitals with an internist: 19
Medical groups with an internist: 24
Practice at a hospital: 36

There are 58 internists in West Chester. Clinical Care Associates (CCA), Penn Medicine has the most, 29, and Chester County Hospital has the most affiliated internists, 35. 33% finished medical school 30 or more years ago.

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West Chester internists, listed A to Z by last name

Each internist on the list has internal medicine as their primary specialty and a West Chester practice address. The list shows the NPI, and how many hospitals and medical groups each one practices with. A free account names every hospital and group, with validated contacts.

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West Chester internists, A to Z
Internist	Hospitals	Medical groups	Email and phone
Yazan Abdullah, MDNPI 1194110676	-	1 group	Contacts
Amarachi Daphne Acholonu, MDNPI 1770946311	5 hospitals	7 groups	Contacts
Eric Paul BalabanNPI 1730686650	-	2 groups	Contacts
David Adam Bernstein, MDNPI 1043471584	4 hospitals	2 groups	Contacts
Helise B. Bichefsky, DONPI 1770533267	3 hospitals	-	Contacts
Richard F. Chalfin, MDNPI 1063533008	-	1 group	Contacts
Amy Chang, MDNPI 1033320023	1 hospital	2 groups	Contacts
Jaehyoung Choi, MDNPI 1336522960	2 hospitals	2 groups	Contacts
Stephanie L. Ciccarelli, MDNPI 1497768469	2 hospitals	3 groups	Contacts
David Walter D'Angelo, DONPI 1447317557	2 hospitals	1 group	Contacts
Robert N. Ditrolio, DONPI 1669498861	2 hospitals	3 groups	Contacts
Hanna Elmongy, MDNPI 1205463692	2 hospitals	2 groups	Contacts
Ronald A. Fronduti, MDNPI 1568494847	2 hospitals	1 group	Contacts
Renee M. Giometti, MDNPI 1639129208	2 hospitals	2 groups	Contacts
Ankit Goel, MDNPI 1851601637	3 hospitals	4 groups	Contacts
Sohil Golwala, MDNPI 1245727643	2 hospitals	3 groups	Contacts
Sonia A. Ignatius, MDNPI 1710269683	4 hospitals	2 groups	Contacts
Michael J. Jaworski, MDNPI 1013035492	5 hospitals	1 group	Contacts
Dwight C. Johnson, DONPI 1598738833	2 hospitals	1 group	Contacts
Vinod Kumar Kataria, MDNPI 1063441954	2 hospitals	-	Contacts
Eashaa Kumar, MDNPI 1538722350	3 hospitals	1 group	Contacts
Mark W. Lasorda, DONPI 1871913954	-	-	Contacts
Edward Ma, MDNPI 1730153081	2 hospitals	1 group	Contacts
Padmaja D. Mamillapalli, MDNPI 1619144060	1 hospital	2 groups	Contacts
Rama Devi Mandapati, MDNPI 1710178074	3 hospitals	1 group	Contacts
Armin Marefat, DONPI 1629291000	4 hospitals	4 groups	Contacts
Glea H. Mazzuca, DONPI 1376803502	-	1 group	Contacts
Katherine H. McDonnell, MDNPI 1154558476	2 hospitals	2 groups	Contacts
Edward Robert O'Dell, DONPI 1952407108	-	-	Contacts
Richard O. Oyelewu, MDNPI 1659345601	2 hospitals	3 groups	Contacts
Aloknath Anirudha Pandya, MDNPI 1588927578	-	2 groups	Contacts
Rajesh J. Patel, MDNPI 1265492763	4 hospitals	1 group	Contacts
Shripali Patel, DONPI 1720285000	2 hospitals	2 groups	Contacts
Gary Richard Peters, MDNPI 1053736991	-	-	Contacts
Adam Bradley Possner, MDNPI 1033276720	-	-	Contacts
Craig Michael Riley, MDNPI 1861734105	2 hospitals	3 groups	Contacts
Michael Stuart Rosen, MDNPI 1619931672	5 hospitals	1 group	Contacts
Jay Evan Rothkopf, MDNPI 1972694800	2 hospitals	2 groups	Contacts
David Saunders, MD, MPHNPI 1306823950	-	-	Contacts
Amit Kumar Shori, MDNPI 1225099542	3 hospitals	3 groups	Contacts
Vinod K. Thangada, MDNPI 1407821101	4 hospitals	1 group	Contacts
Morgan Turnage, MDNPI 1477283851	3 hospitals	2 groups	Contacts
Maria Vasiliadis, DONPI 1528221462	3 hospitals	2 groups	Contacts
John R. Walsh, DONPI 1649271180	5 hospitals	2 groups	Contacts
John K. Wang, MDNPI 1619920923	2 hospitals	2 groups	Contacts
Hongyu ZhangNPI 1609280551	6 hospitals	8 groups	Contacts

The list shows the 46 internists with a public profile. The other 12 are counted in the total and searchable with a free account.

Sources: NPPES NPI Registry (CMS) and Dmand AI Affiliation Data

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Clinical Care Associates (CCA), Penn Medicine has the most internists in West Chester, with 29

Penn Medicine Lancaster General Health is second with 5, and Chester County Hospital third with 5. Counts are internists with a Pennsylvania address linked to each group.

Medical groups with the most internists in West Chester
#	Medical group	Parent organization	Internists
1	Clinical Care Associates (CCA), Penn MedicineRadnor	Parent on file	29
2	Penn Medicine Lancaster General HealthLancaster	Parent on file	5
3	Chester County HospitalWest Chester	Parent on file	5
4	Main Line HealthNewtown Square	Parent on file	4
5	Tower Health Medical Group Family Medicine - PottstownPottstown	Parent on file	3
6	Chester County RheumatologyWest Chester	Parent on file	2
7	Crozer Health Medical Group (CHMG)Chester	Parent on file	2
8	Tower Health Medical GroupPhoenixville	Parent on file	2
9	Advanced Pulmonary & Sleep AssociatesWest Chester	Parent on file	2
10	Tower Health Medical GroupBirdsboro	Parent on file	2

Top 10 of 24 West Chester medical groups with an internist

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

Chester County Hospital has the most affiliated internists in West Chester, with 35

Hospital of the University of Pennsylvania is second with 31, and Paoli Hospital third with 7. West Chester internists are affiliated with 19 hospitals in all.

Hospitals with the most internists in West Chester
#	Hospital	Health system	Internists
1	Chester County HospitalWest Chester	University of Pennsylvania	35
2	Hospital of the University of PennsylvaniaPhiladelphia	University of Pennsylvania	31
3	Paoli HospitalPaoli	Main Line Health System	7
4	Riddle HospitalMedia	Main Line Health System	6
5	Lancaster General HospitalLancaster	University of Pennsylvania	3
6	Reading HospitalWest Reading	Tower Health	2
7	Bryn Mawr HospitalBryn Mawr	Main Line Health System	2
8	Lankenau Medical CenterWynnewood	Main Line Health System	2
9	St. Luke's Hospital - Upper Bucks CampusQuakertown	St. Luke's University Health Network	1
10	St. Luke's University Hospital - Bethlehem CampusBethlehem	St. Luke's University Health Network	1

Top 10 of 19 West Chester hospitals with an affiliated internist

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Source: Dmand AI Affiliation Data

Most West Chester internists practice at a hospital: 36 of the 43 with a mapped site

18 also practice at a medical group site, and 12 at home health agencies. An internist can practice at several kinds of site, so the shares overlap.

West Chester internists by site of care

Hospitals3684%
Medical group practices1842%
Home health agencies1228%
Physician offices614%
Hospices37%

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

33% of West Chester internists finished medical school 30 or more years ago

14 of the 42 West Chester internists with a graduation year on file. 4 graduated in the last 10 years.

Physicians by years since medical school

Under 10 years ago410%
10 to 19 years ago1229%
20 to 29 years ago1229%
30 to 39 years ago1024%
40 or more years ago410%

Source: Dmand AI Professional Profile Data

Every West Chester internist profile shows current hospitals and groups, Medicare activity and NPI details

Primary practiceThe main place they practice, with its type and cityOn every profile
Every site of careEach hospital, clinic and group where they practice nowWith a free account
EmployerThe organization they work for, when one is on fileWith a free account
Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
EHR in useThe EHR at each site where they practiceWith a free account
Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account

Free account: 30 days free, self-serve, no credit card.

Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data

Sources for the West Chester internist directory

Sources for the data on this page
Data on this page	Source
HCPs, types and specialties	NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Sites of care, hospitals and medical groups	Dmand AI Affiliation Data
Medical school graduation year	Dmand AI Professional Profile Data

Data last refreshed October 2026Report an inaccuracy Remove my information

Internists are HCPs whose primary specialty is internal medicine (taxonomy code 207R00000X), with an active NPI and a West Chester practice address.

FAQ

Frequently asked questions about internists in West Chester

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

How many internists are in West Chester?

58 internists have an active NPI, a West Chester practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 43 of them are linked to a hospital or medical group.

Which West Chester medical groups have the most internists?

Clinical Care Associates (CCA), Penn Medicine, with 29, followed by Penn Medicine Lancaster General Health with 5 and Chester County Hospital with 5.

Which West Chester hospitals have the most internists?

Chester County Hospital, with 35 affiliated internists, followed by Hospital of the University of Pennsylvania with 31 and Paoli Hospital with 7.

What share of West Chester internists practice at a hospital?

36 of the 43 West Chester internists with a mapped site of care, or 84%, have a current hospital affiliation.

What is the taxonomy code for internal medicine?

207R00000X is the NPPES taxonomy code for internal medicine. Sub-specialties with their own code are counted on their own lists.

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