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Alfred J. Cossari, M.D., P.C.

Ophthalmology Physician in Port Jefferson, NY · enumerated 2010 · authorized official Alfred Cossari, President.

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

National Provider Identifier

1417250135

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Registry record

Entity type Organization (Type 2)
Legal business name Alfred J. Cossari, M.D., P.C.
Practice address 311 Barnum Ave, Port Jefferson, NY, 11777
Phone (631) 928-6400
Fax (631) 928-2353
Enumeration date Dec 20, 2010
Last updated in NPPES Dec 20, 2010

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 119075 (NY) Primary

Authorized official

Name Alfred Cossari
Title President
Phone (631) 928-6400

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

Who is the authorized official for Alfred J. Cossari, M.D., P.C.?
NPPES lists Alfred Cossari (President) as the authorized official for this organization.
What is the NPI number for Alfred J. Cossari, M.D., P.C.?
The NPI for Alfred J. Cossari, M.D., P.C. is 1417250135, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-20.