NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Dr Leonard E Rosenfeld PC

Internal Medicine Physician in Phila, PA · enumerated 2007 · authorized official Ruth Jamison, Administration.

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

National Provider Identifier

1912037847

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Dr Leonard E Rosenfeld PC
Other name <Unavail>
Practice address 1740 South St Ste 402, Phila, PA, 19146
Phone (215) 382-6112
Fax (215) 382-6115
Enumeration date Mar 7, 2007
Last updated in NPPES Dec 8, 2020

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License OS001780L (PA) Primary

Authorized official

Name Ruth Jamison
Title Administration
Phone (267) 792-1101

Other identifiers

Identifier Type State Issuer
0980468 Medicaid PA -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Dr Leonard E Rosenfeld PC?
Dr Leonard E Rosenfeld PC is registered in NPPES as a Internal Medicine 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 →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-08.