Martin I. Granoff, MD
Obstetrics & Gynecology Physician · East Northport, NY
Martin I. Granoff, MD is an obstetrics & gynecology physician with a practice address in East Northport, New York, and NPI 1326078916, issued on Jul 3, 2006. Check the license (New York 211787-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Martin I. Granoff
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 211787-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 554 Larkfield RD, East Northport, NY 11731
- Phone
- (631) 368-3800
- Enumerated
- Jul 3, 2006
- Record last updated
- Dec 7, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040923000768); accepts Medicare assignment
- Medical or professional school
- State University Of New York At Stony Brook, School Of Medicine, 1997
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 3,174 in New York → Look up another NPI →
Also registered at 554 Larkfield RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Scott Bauman, D.C.Chiropractor1013002062
- Steven Desousa, PTPhysical Therapist1457321911
- Danielle Evans, OTRLOccupational Therapist1477699494
- Margaux Hartmann, RRTRegistered Respiratory Therapist1528935210
Verify Martin I. Granoff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 211787-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
30% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
215 Medicare Part D claims for 68 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Estradiol51 claims
- Valacyclovir17 claims
- Junel Fe12 claims
- Oxybutynin Chloride Er12 claims
- Metronidazole11 claims
- Zolpidem Tartrate11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $614.12
27 payments; by number, the most common kind was food and beverage; the largest payer was Ethicon US, LLC. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Martin I Granoff MD PCEast Northport, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Martin I. Granoff among 3,174 obstetrics & gynecology physician records in New York
Martin I. Granoff, MD is one of 3,174 obstetrics & gynecology physician records with a practice address in New York. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 49% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1997 · median 2002 among the 1,870 with a school on file
- Record last updated2007 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 obstetrics & gynecology physician records list a practice address in East Northport
They are 4 of the 494 NPPES records with a practice address in East Northport, and 3,174 obstetrics & gynecology physician records in New York.
All 3,174 in New York → Every provider in East Northport → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Theodore Goldman, M.D.East Northport, NY 117311912968181
- Chau Lee, DOEast Northport, NY 117311407814080
- John Wagner, M.D.East Northport, NY 117311538120704
- Emily Gubert, MDEast Islip, NY 117301134343296
- Paulina Guta, D.O.East Islip, NY 117301528447836
- Paula Hirt, MDEast Islip, NY 117301760504088
- Jane Cho, MDDeer Park, NY 117291073502415
- Christine Conway, M.D.East Setauket, NY 117331689601445
Common questions
What is Martin I. Granoff, MD's NPI number?
Martin I. Granoff, MD's National Provider Identifier (NPI) is 1326078916, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Martin I. Granoff, MD located?
The NPPES record lists a practice address at 554 Larkfield RD, East Northport, NY, 11731. Phone: (631) 368-3800. Providers update this record themselves, so call before visiting.
How can I verify Martin I. Granoff, MD's license?
NPPES lists New York license number 211787-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Martin I. Granoff, MD prescribe under Medicare Part D?
In 2024, Martin I. Granoff, MD had 215 Medicare Part D claims for 68 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.