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Martin I Granoff MD PC

Obstetrics & Gynecology Physician in East Northport, NY · enumerated 2006 · authorized official Martin Granoff, Physician.

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

National Provider Identifier

1104936061

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Registry record

Entity type Organization (Type 2)
Legal business name Martin I Granoff MD PC
Practice address 554 Larkfield Road, Sutie 105, East Northport, NY, 11731
Phone (631) 369-3800
Fax (631) 368-3802
Enumeration date Aug 30, 2006
Last updated in NPPES Dec 7, 2007

Taxonomy & classification

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 211787 (NY) Primary

Authorized official

Name Martin Granoff
Title Physician
Phone (631) 369-3800

Other identifiers

Identifier Type State Issuer
02169033 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 type of organization is Martin I Granoff MD PC?
Martin I Granoff MD PC is registered in NPPES as a Obstetrics & Gynecology Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-07.