Stuart M. Greenstein, MD
Surgery Physician · Valhalla, NY
Stuart M. Greenstein, MD is a surgery physician with a practice address in Valhalla, New York, and NPI 1942382114, issued on Oct 19, 2006. Check the license (New York 162733, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Stuart M. Greenstein
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 162733 NY
Self-reported in NPPES; status is on the state search - Practice location
- 100 Woods RD FL Acp3, Valhalla, NY 10595
- Phone
- (914) 493-8916
- Enumerated
- Oct 19, 2006
- Record last updated
- May 31, 2023
- Fax
- (914) 493-7595
- Medicare enrollment
- Enrolled (PECOS I20071120000711); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1979
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 2,053 in New York → Look up another NPI →
Also registered at 100 Woods RD FL Acp3
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Bernard Partiula, D.O.Internal Medicine Physician1417341645
Verify Stuart M. Greenstein 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 162733Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average surgery physician in 2024
28 Medicare Part D claims, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Westchester Medical Center Advanced Physician Services PCValhalla, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stuart M. Greenstein among 2,053 surgery physician records in New York
Stuart M. Greenstein, MD is one of 2,053 surgery physician records with a practice address in New York. 74% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 51% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1979 · median 2002 among the 1,212 with a school on file
- Record last updated2023 · 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 208600000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
26 surgery physician records list a practice address in Valhalla
They are 26 of the 2,105 NPPES records with a practice address in Valhalla, and 2,053 surgery physician records in New York.
All 2,053 in New York → Every provider in Valhalla → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Alejandro Betancourt-Ramirez, M.D.Valhalla, NY 105951275717845
- Kalyani Bhuta, MDValhalla, NY 105951710987375
- Meelie Debroy, MDValhalla, NY 105951528099959
- Dmitriy Karev, MDValhalla, NY 105951588809172
- Rafael Klein-CloudValhalla, NY 105951467815050
- Thoi Ngo, MDValhalla, NY 105951194139923
- Daniel Nicastri, M.D.Valhalla, NY 105951275783565
- Seigo Nishida, MDValhalla, NY 105951659337533
Common questions
What is Stuart M. Greenstein, MD's NPI number?
Stuart M. Greenstein, MD's National Provider Identifier (NPI) is 1942382114, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stuart M. Greenstein, MD located?
The NPPES record lists a practice address at 100 Woods RD FL Acp3, Valhalla, NY, 10595. Phone: (914) 493-8916. Providers update this record themselves, so call before visiting.
How can I verify Stuart M. Greenstein, MD's license?
NPPES lists New York license number 162733, 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 Stuart M. Greenstein, MD prescribe under Medicare Part D?
In 2024, Stuart M. Greenstein, MD had 28 Medicare Part D claims; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Stuart M. Greenstein, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.