Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Trustees of the University of Pennsylvania

Rheumatology Physician in Radnor, PA · enumerated 2006 · authorized official Elizabeth Johnston, Executive Director.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1841393337

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Registry record

Entity type Organization (Type 2)

Legal business name Trustees of the University of Pennsylvania

Practice address 250 King of Prussia Rd, Radnor, PA, 19087

Phone (610) 902-2000

Fax (610) 902-2040

Enumeration date Sep 7, 2006

Last updated in NPPES May 22, 2008

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Secondary

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Elizabeth Johnston

Title Executive Director

Phone (215) 662-7583

Other identifiers

Identifier	Type	State	Issuer
116472401	Other	PA	ACS
1001258770	Medicaid	PA	-
300654	Other	PA	EEIOC
0002Y21509	Other	PA	HEALTHNET
0222616000	Other	PA	KEYSTONE
273396	Other	PA	MAMSI
594579	Other	PA	BLUE SHIELD
710903	Other	PA	AETNA
1038536	Other	PA	MERCY
17603	Other	PA	HEALTHPARTNERS
CN3127	Other	PA	RR MEDICARE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What type of organization is Trustees of the University of Pennsylvania?

Trustees of the University of Pennsylvania is registered in NPPES as a Rheumatology Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Mark Sostek Gastroenterology Physician · Radnor, PA NPI 1902881329 Thomas Slattery Diagnostic Radiology Physician · Radnor, PA NPI 1235115601 Jason Jones Medical Physician Assistant · Radnor, PA NPI 1629037106 Christine Gearhart Family Nurse Practitioner · Radnor, PA NPI 1174572622 Thorne Sparkman Internal Medicine Physician · Radnor, PA NPI 1972559144 Joanne Linevsky Gastroenterology Physician · Radnor, PA NPI 1467408633 Rudolf Roth Dermatology Physician · Radnor, PA NPI 1386683886 Ann Steiner Obstetrics & Gynecology Physician · Radnor, PA NPI 1992744403

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-22.