Gary Greenwald, M.D.
Emergency Medicine Physician · New Hyde Park, NY
Gary Greenwald, M.D. is an emergency medicine physician with a practice address in New Hyde Park, New York, and NPI 1942287024, issued on Dec 29, 2005. Check the license (New York 154918-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Gary Greenwald
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 154918-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2800 Marcus Ave, New Hyde Park, NY 11042
- Phone
- (516) 622-6000
- Enumerated
- Dec 29, 2005
- Record last updated
- Feb 19, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicaid ID
- 01008259 NY
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 2800 Marcus Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Adler, MDGastroenterology Physician1760643241
- Philip Adler, MDDiagnostic Radiology Physician1801814249
- Lynn Alampi, MA, CCC-AAudiologist1043483159
- Juan Arboleda, M.D.Anesthesiology Physician1316096365
- Claude Baconcini, CRNACertified Registered Nurse Anesthetist1497962351
- Simmy Bank, MDGastroenterology Physician1396824587
Verify Gary Greenwald 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 154918-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average emergency medicine physician in 2024
115 Medicare Part D claims for 84 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Prednisone16 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.
Gary Greenwald among 5,025 emergency medicine physician records in New York
Gary Greenwald, M.D. is one of 5,025 emergency medicine physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 97% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2015 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
107 emergency medicine physician records list a practice address in New Hyde Park
They are 107 of the 4,217 NPPES records with a practice address in New Hyde Park, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in New Hyde Park → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Anurag Gupta, M.D.New Hyde Park, NY 110421407081094
- Sandra Torres, MDNew Hyde Park, NY 110421578766093
- Abena Baah-Fordjour, MDNew Hyde Park, NY 110401467102319
- Heather Brunette, MDNew Hyde Park, NY 110401447994884
- Richard FisherNew Hyde Park, NY 110401902556996
- Stephanie Garcia, MDNew Hyde Park, NY 110401649911041
- Thomas GlazerNew Hyde Park, NY 110401851093868
- Kei Hayashida, MD, PHDNew Hyde Park, NY 110401033851340
Common questions
What is Gary Greenwald, M.D.'s NPI number?
Gary Greenwald, M.D.'s National Provider Identifier (NPI) is 1942287024, issued on Dec 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gary Greenwald, M.D. located?
The NPPES record lists a practice address at 2800 Marcus Ave, New Hyde Park, NY, 11042. Phone: (516) 622-6000. Providers update this record themselves, so call before visiting.
How can I verify Gary Greenwald, M.D.'s license?
NPPES lists New York license number 154918-1, 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 Gary Greenwald, M.D. prescribe under Medicare Part D?
In 2024, Gary Greenwald, M.D. had 115 Medicare Part D claims for 84 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.