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

Dr. Gwenn H. Rosenthal, O.D.

Optometrist in Narberth, PA · enumerated 2006.

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

National Provider Identifier

1700968666

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Registry record

Entity type Individual (Type 1)

Name Dr. Gwenn H. Rosenthal

Credential O.D.

Sex Female

Practice address Narberth, PA, 19072

Phone (610) 667-4123

Fax (610) 667-4123

Enumeration date Oct 19, 2006

Last updated in NPPES Feb 25, 2008

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License OEG000852 (PA) Primary

OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses. About the OD credential

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 is the NPI number for Gwenn Rosenthal?

The National Provider Identifier (NPI) for Gwenn Rosenthal is 1700968666, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gwenn Rosenthal practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-25.