NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marc S Zimmerman, MD

Orthopaedic Surgery Physician in Philadelphia, PA · enumerated 2005.

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

National Provider Identifier

1326038639

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Marc S Zimmerman
Credential MD
Sex Male
Practice address 2410-14 S Broad St, Suite 200, Philadelphia, PA, 19145
Phone (215) 334-3350
Fax (215) 336-6980
Enumeration date Oct 27, 2005
Last updated in NPPES Mar 19, 2008

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD018690E (PA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
0032976 Other - AETNA HMO
0006978160001 Medicaid PA -
0052401000 Other - KEYSTONE EAST HMO

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

Where does Marc Zimmerman practice?
The practice location on file with NPPES is in Philadelphia, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marc Zimmerman?
The National Provider Identifier (NPI) for Marc Zimmerman is 1326038639, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-19.