NPI Portal NPI Lookup & Verification

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

Gerald S Mennin, M.D.

Ophthalmology Physician in Yonkers, NY · enumerated 2006.

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

National Provider Identifier

1003902156

Verified

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Registry record

Entity type Individual (Type 1)
Name Gerald S Mennin
Credential M.D.
Sex Male
Practice address Yonkers, NY, 10705
Phone (914) 969-6995
Fax (914) 969-2917
Enumeration date Oct 5, 2006
Last updated in NPPES Oct 17, 2007

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

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 82673 (NY) 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
48Z791 Other NY EMPIRE BLUE CROSS BLUE SH
4096908 Other NY AETNA
OH4152 Other NY HEALTHNET
WS005 Other NY OXFORD HEALTH PLANS
23228P Other NY HIP HEALTH PLAN NY
00121706 Medicaid NY -

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 is the NPI number for Gerald Mennin?
The National Provider Identifier (NPI) for Gerald Mennin is 1003902156, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gerald Mennin practice?
The practice location on file with NPPES is in Yonkers, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-17.