Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Alan Nathanson, DDS

General Practice Dentistry in Phila, PA · enumerated 2006.

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

National Provider Identifier

1457330375

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Registry record

Entity type Individual (Type 1)

Name Dr. Alan Nathanson

Credential DDS

Sex Male

Practice address Phila, PA, 19137

Phone (215) 533-7175

Fax (215) 533-6026

Enumeration date Jan 10, 2006

Last updated in NPPES Sep 13, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License DS021460L (PA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Other identifiers

Identifier	Type	State	Issuer
232440843	Other	PA	FED TAX ID

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 Alan Nathanson practice?

The practice location on file with NPPES is in Phila, PA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Alan Nathanson?

The National Provider Identifier (NPI) for Alan Nathanson is 1457330375, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-13.