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MARTIN I GRANOFF MD PC
NPI 1104936061
Obstetrics & Gynecology in East Northport, NY

Active since August 30, 2006
554 LARKFIELD ROAD, SUTIE 105, EAST NORTHPORT, NY 11731(631) 369-3800(631) 368-3802 Get Directions Write a Review

NPPES record last updated: December 7, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Martin I Granoff Md Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARTIN I GRANOFF MD PC (NPI 1104936061) is a healthcare organization registered as an obstetrics & gynecology in East Northport, New York and active in the NPI registry since August 2006. The organization lists Martin Irving Granoff, Physician, as its authorized official.

NPPES Registry Identity

NPI1104936061
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NameMARTIN I GRANOFF MD PC
Location Address554 LARKFIELD ROAD, SUTIE 105East Northport, NY 11731
Mailing AddressPo Box 899East Northport, NY 11731-0526 · (631) 369-3800 · Fax (631) 368-3802
Phone(631) 369-3800
Fax(631) 368-3802
Organization SubpartNo
Authorized OfficialMartin Irving GranoffPhysician · (631) 369-3800
Enumeration DateAugust 30, 2006
Last NPPES UpdateDecember 7, 2007
✔ NPI 1104936061 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in NY · 211787
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
554 LARKFIELD ROAD, East Northport, NY 11731
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Other Identifiers 3

Medicaid02169033NY
Medicare PINWJD761NY
Medicare UPINH52729

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Martin I Granoff Md Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Martin I Granoff MD PC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Martin Granoff, MD
Obstetrics/Gynecology
NPI 1326078916
554 LARKFIELD RD
East Northport, NY 11731
(631) 368-3800
✔ PECOS✔ Accepts MedicareSame address
Chau Lee, DO
Obstetrics/Gynecology
NPI 1407814080
554 LARKFIELD RD SUITE 105
East Northport, NY 11731
(631) 368-3800
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Martin I Granoff MD PC's NPI number?

The NPI number for Martin I Granoff MD PC is 1104936061. It was assigned to this organization in the NPPES registry on August 30, 2006.

Where is Martin I Granoff MD PC located?

Martin I Granoff MD PC is located at 554 Larkfield Road Sutie 105, East Northport, NY 11731. The listed phone number is (631) 369-3800.

What is Martin I Granoff MD PC's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Martin I Granoff MD PC enrolled in Medicare?

Yes. Martin I Granoff MD PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Martin I Granoff MD PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Obstetrics/Gynecology, reassign their Medicare billing to Martin I Granoff MD PC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Martin I Granoff MD PC was last updated on December 7, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.