Duncan Grossman, DO
Emergency Medicine Physician · New York, NY
Duncan Grossman, DO is an emergency medicine physician with a practice address in New York, New York, and NPI 1679078588, issued on Mar 25, 2018. Check the license (New York 312895-01, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Duncan Grossman
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 312895-01 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1468 Madison Ave, New York, NY 10029
- Phone
- (212) 241-6500
- Enumerated
- Mar 25, 2018
- Record last updated
- May 10, 2022
- Medicare enrollment
- Enrolled (PECOS I20220527001165); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2018
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Also registered at 1468 Madison Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Karim Abdel Jalil, DOStudent in an Organized Health Care Education/Training Program1861074692
- Victor Abdow, MDStudent in an Organized Health Care Education/Training Program1891555710
- Benjamin Abella, MDEmergency Medicine Physician1568560746
- Ellya Abidi, PA-CPhysician Assistant1699312066
- Nathaniel Abittan, MDInternal Medicine Physician1457810426
Verify Duncan Grossman 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 312895-01Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average emergency medicine physician in 2024
20 Medicare Part D claims for 12 beneficiaries, against an average of 226 among the 54,106 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.
Bills Medicare through 2 group practices
- Icahn School OF Medicine AT Mount SinaiNew York, NY
- Icahn School OF Medicine AT Mount SinaiElmhurst, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Duncan Grossman among 5,025 emergency medicine physician records in New York
Duncan Grossman, DO 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 2018, is newer than 75% of them.
- NPI issued2018 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2018 · median 2013 among the 3,232 with a school on file
- Record last updated2022 · 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).
1,075 emergency medicine physician records list a practice address in New York
They are 1,075 of the 98,468 NPPES records with a practice address in New York, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in New York → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Phillip Andrus, MDNew York, NY 100291184692972
- Kevin Chason, DONew York, NY 100291487622494
- Jessica Freedman, MDNy, NY 100291538137583
- Luke HermannNew York, NY 100291457326274
- Andy Jagoda, MDNew York, NY 100291669449690
- Bret Nelson, MDNew York, NY 100291255309407
- Thomas Nguyen, MDNew York, NY 100291679549265
- Ruben Olmedo, MDNew York, NY 100291831164680
Common questions
What is Duncan Grossman, DO's NPI number?
Duncan Grossman, DO's National Provider Identifier (NPI) is 1679078588, issued on Mar 25, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Duncan Grossman, DO located?
The NPPES record lists a practice address at 1468 Madison Ave, New York, NY, 10029. Phone: (212) 241-6500. Providers update this record themselves, so call before visiting.
How can I verify Duncan Grossman, DO's license?
NPPES lists New York license number 312895-01, 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 Duncan Grossman, DO prescribe under Medicare Part D?
In 2024, Duncan Grossman, DO had 20 Medicare Part D claims for 12 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.