Debra Shira Greenfield, M.D.
Internal Medicine Physician · West Hempstead, NY
Debra Shira Greenfield, M.D. is an internal medicine physician with a practice address in West Hempstead, New York, and NPI 1558525964, issued on Jul 15, 2008. Check the license (New York 156795, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Debra Shira Greenfield
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 156795 NY
Self-reported in NPPES; status is on the state search - Practice location
- 324 Elm St, West Hempstead, NY 11552
- Phone
- (516) 481-6911
- Enumerated
- Jul 15, 2008
- Record last updated
- Jul 15, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20121211000553); may accept Medicare assignment
- Medical or professional school
- Icahn School Of Medicine At Mount Sinai, 1982
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 324 Elm St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rachel Genuth, RPACPhysician Assistant1255677985
Verify Debra Shira Greenfield 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 156795Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average internal medicine physician in 2024
727 Medicare Part D claims for 112 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 61% of claims.
Most prescribed
- Mounjaro207 claims
- Ozempic156 claims
- Metformin Hcl119 claims
- Wegovy53 claims
- Naltrexone Hcl25 claims
- Topiramate18 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: $379.27
14 payments; by number, the most common kind was food and beverage; the largest payer was Intra-Sana Laboratories. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Dr Michael Kaplan DO PCSmithtown, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Debra Shira Greenfield among 12,067 internal medicine physician records in New York
Debra Shira Greenfield, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1982 · median 2002 among the 7,221 with a school on file
- Record last updated2008 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 internal medicine physician records list a practice address in West Hempstead
They are 9 of the 608 NPPES records with a practice address in West Hempstead, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in West Hempstead → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Phyllis Blacharsh, M.D.West Hempstead, NY 115521710026018
- Armando Forero, MDWest Hempstead, NY 115521992889927
- Constantine Haliasos, M.DWest Hempstead, NY 115521043216559
- Jingbo Liu, M.D.West Hempstead, NY 115521003938770
- Dan Lu, MDWest Hempstead, NY 115521811052293
- Richard Mermelstein, MDW Hempstead, NY 115521629488440
- Mohammed Rahman, M.D.West Hempstead, NY 115521538154901
- Ann Marie Rode, DOWest Hempstead, NY 115521851502686
Common questions
What is Debra Shira Greenfield, M.D.'s NPI number?
Debra Shira Greenfield, M.D.'s National Provider Identifier (NPI) is 1558525964, issued on Jul 15, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Debra Shira Greenfield, M.D. located?
The NPPES record lists a practice address at 324 Elm St, West Hempstead, NY, 11552. Phone: (516) 481-6911. Providers update this record themselves, so call before visiting.
How can I verify Debra Shira Greenfield, M.D.'s license?
NPPES lists New York license number 156795, 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 Debra Shira Greenfield, M.D. prescribe under Medicare Part D?
In 2024, Debra Shira Greenfield, M.D. had 727 Medicare Part D claims for 112 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.