Dr. Stuart M. Greenstein, MD
- Medicare services, 2022
- 141
- Part D claims, 2024
- 28
- Publications
- 108
- MIPS score, 2024
- 75
- Hospital affiliations
- 1
- Practice address
- 100 Woods Rd, Valhalla, NY 10595
- Practice phone
- Call (914) 493-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Greenstein's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Stuart M. Greenstein is a general surgeon in Valhalla, New York
Dr. Greenstein practices at Westchester Medical Center in Valhalla, New York, part of Westchester Medical Center Health Network.
Dr. Greenstein's NPI, 1942382114, was assigned on October 19, 2006. Dr. Greenstein graduated from Harvard Medical School in 1979. Dr. Greenstein holds New York license 162733.
- NPI
- 1942382114NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4284722588
- NPI enumeration date
- October 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (914) 493-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stuart M. Greenstein practices at Westchester Medical Center in Valhalla, New York
Dr. Greenstein's primary practice is Westchester Medical Center, at 100 Woods Rd, Valhalla, NY 10595 in Westchester County. The practice phone is (914) 493-7000.
- Westchester Medical Center100 Woods Rd, Valhalla, NY 10595 · Westchester CountyPhone(914) 493-7000
Source: Dmand AI Affiliation Data
Dr. Stuart M. Greenstein is affiliated with 1 site of care and 2 medical groups
Dr. Greenstein's primary practice is Westchester Medical Center in Valhalla, New York, part of Westchester Medical Center Health Network. The medical group on file is Montefiore Einstein Faculty Practice Group. Dmand AI also links Dr. Greenstein to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stuart M. Greenstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greenstein practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Westchester Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Westchester Medical Center Health Network and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Stuart M. Greenstein is one of 1,604 general surgeons in New York
Surgery is Dr. Greenstein's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Greenstein is board certified in surgery by the American Board of Surgery. Dmand AI has Dr. Greenstein's licenses on file in 4 states: New York, New Jersey, Pennsylvania and South Carolina.
Specialties and state licenses
- Surgery, New YorkPrimary
- New Jersey license
- Pennsylvania license
- South Carolina license
General surgeons near Dr. Greenstein
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stuart M. Greenstein billed Medicare for 141 services in 2022
CMS data shows 141 Medicare services from Dr. Greenstein across 4 procedure codes in 2022. Medicare paid $8,980 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Greenstein's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 1532022: 1418%
Dr. Greenstein compared with the New York median for general surgeons, 2022
- Dr. Greenstein
- New York median
- Medicare services
- 141vs 1548% below
- Part D claims
- 11vs 2454% below
Medians across 1,502 general surgeons in New York with Dmand AI profiles that report each measure.
Dr. Greenstein's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Greenstein and other general surgeons in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stuart M. Greenstein's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Greenstein's median patient age at 61, with 33% women.
Dr. Greenstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women33%
- Men58%
Source: Dmand AI Patient Panel Data
Dr. Stuart M. Greenstein wrote 28 Medicare Part D claims in 2024
In 2024, Dr. Greenstein wrote 28 Medicare Part D claims. 89% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $3,316 in total drug cost. In 2017, CMS named 11 claims across 1 drug.
Dr. Greenstein's Part D claims by kind of drug, 2024
- Generic25 claims89%
- Brand-name and other3 claims11%
Dr. Greenstein's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2017 to 2020
- 2017
- 2020
- Claims for drugs CMS names
- 2017: 112020: 11No change
Drugs named by CMS: 1 in 2020, 1 in 2017.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Stuart M. Greenstein scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Greenstein for performance year 2024, reported as part of a group. Dr. Greenstein accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Stuart M. Greenstein has 108 publications on record
Dmand AI links 108 papers to Dr. Greenstein, published from 2008 to 2025. 2012 was the busiest year, with 7. The most frequent topics are Kidney Transplantation, Graft Survival and Immunosuppressive Agents. Dr. Greenstein has published most often in Transplant Proc. Dr. Greenstein's most frequent co-authors are Enver Akalin, MD, Milan M. Kinkhabwala, MD and Juan Pablo Rocca, MD.
Dr. Greenstein's papers by year, 2012 to 2025
Topics Dr. Greenstein writes about most
- Kidney Transplantation
- Graft Survival
- Immunosuppressive Agents
- Graft Rejection
- Tissue Donors
- Intestine, Small
- Rats, Inbred Lew
- Transplantation, Homologous
Dr. Greenstein's most frequent co-authors
- Enver Akalin, MD10 shared papers
- Milan M. Kinkhabwala, MD10 shared papers
- Juan Pablo Rocca, MD10 shared papers
Recent publications by Dr. Greenstein
J Thorac Imaging
See who Dr. Greenstein researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Greenstein works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stuart M. Greenstein received $4,689 in industry payments from 2016 to 2023
CMS Open Payments shows 44 general payments to Dr. Greenstein from 11 drug and device companies from 2016 to 2023. Consulting fees make up the largest share, 26% of the total. LeMaitre Vascular, Inc. paid the most, $1,890. It also lists 1 research payment totaling $500 in 2016.
General payments to Dr. Greenstein by program year, 2016 to 2023
General payments to Dr. Greenstein by kind, 2016 to 2023
- Consulting fees$1,22626%
- Speaker and faculty fees$1,16525%
- Food and beverage$1,05022%
- Travel and lodging$98821%
- Other$2606%
Companies that paid Dr. Greenstein the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stuart M. Greenstein has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Greenstein, most recently Top Doctors: New York Metro Area in 2014.
Awards and honors for Dr. Greenstein
- 2014
- Top Doctors: New York Metro Area
- Undated
- ACS Fellow
Source: Dmand AI Professional Profile Data
Dr. Stuart M. Greenstein graduated from Harvard Medical School
Dr. Greenstein graduated from Harvard Medical School in 1979. Dr. Greenstein is a member of ACS.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Stuart M. Greenstein accepts plans from 14 insurance carriers
Dr. Greenstein is in network with 14 carriers, including Elevance, Aetna and MVP Health Care. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Elevance
- Aetna
- MVP Health Care
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Aspirus Health Plan
- Cigna
- HCSC
- +6 more carriersWith a free account
Plan types Dr. Greenstein accepts, by number of carriers
- PPO9
- HMO8
- Medicare6
- POS6
- EPO4
- Medicaid4
Source: Dmand AI Insurance Network Data
Sources for Dr. Stuart M. Greenstein's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Stuart M. Greenstein
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Stuart M. Greenstein's NPI number?
Dr. Stuart M. Greenstein's NPI number is 1942382114. It was assigned on October 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stuart M. Greenstein?
Dr. Stuart M. Greenstein is a general surgeon in Valhalla, New York. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Stuart M. Greenstein practice?
Dr. Greenstein practices at 100 Woods Rd, Valhalla, NY 10595. Dr. Greenstein's primary practice is Westchester Medical Center in Valhalla, New York, part of Westchester Medical Center Health Network. Dmand AI also links Dr. Greenstein to 1 medical group.
What is Dr. Stuart M. Greenstein's office phone number?
The practice phone on file for Dr. Greenstein is (914) 493-7000.
What is Dr. Stuart M. Greenstein's medical license number?
Dr. Greenstein holds New York license 162733, one of the licenses on file in 4 states.
Which states has Dr. Stuart M. Greenstein been licensed in?
Dmand AI has state licenses on file for Dr. Greenstein in New York (1985 to 2026), New Jersey (1980 to 2027), Pennsylvania (1984 to 2026) and South Carolina (2015).
Which hospitals is Dr. Stuart M. Greenstein affiliated with?
Dr. Greenstein practices at Westchester Medical Center in Valhalla, New York.
What medical group is Dr. Stuart M. Greenstein part of?
Dr. Greenstein is linked to Montefiore Einstein Faculty Practice Group. Dmand AI links Dr. Greenstein to 1 more medical group.
Does Dr. Stuart M. Greenstein accept Medicare?
Yes. CMS data shows Dr. Greenstein billed Medicare for 141 services in 2022, and Dr. Greenstein accepts Medicare assignment.
What is Dr. Stuart M. Greenstein's MIPS score?
Dr. Greenstein's MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
Show 9 more questionsShow fewer questions
Is Dr. Stuart M. Greenstein board certified?
Yes. Dr. Greenstein is board certified in surgery by the American Board of Surgery.
What services does Dr. Stuart M. Greenstein bill to Medicare?
In 2022, Dr. Greenstein's most billed Medicare services were hospital inpatient care (99231), office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Stuart M. Greenstein go to medical school?
Dr. Greenstein graduated from Harvard Medical School in 1979.
What drugs does Dr. Stuart M. Greenstein prescribe most?
In 2020 Medicare Part D data, Dr. Greenstein's most prescribed drugs by claims were Dexilant.
Has Dr. Stuart M. Greenstein received payments from drug or device companies?
CMS Open Payments shows $4,689 in general payments to Dr. Greenstein from 11 companies from 2016 to 2023. The largest total came from LeMaitre Vascular, Inc.
How long has Dr. Stuart M. Greenstein been practicing?
Dr. Greenstein graduated from medical school in 1979, 47 years ago.
Does Dr. Stuart M. Greenstein do research?
Dmand AI links 108 publications to Dr. Greenstein, published from 2008 to 2025.
Who does Dr. Stuart M. Greenstein publish with?
Dr. Greenstein's most frequent co-authors are Enver Akalin, MD (10 shared papers), Milan M. Kinkhabwala, MD (10 shared papers) and Juan Pablo Rocca, MD (10 shared papers).
What insurance does Dr. Stuart M. Greenstein accept?
Dr. Greenstein is in network with 14 carriers, including Elevance, Aetna and MVP Health Care. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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