Masha Slavin, M.D.
Internal Medicine Physician · New York, NY
Masha Slavin, M.D. is an internal medicine physician with a practice address in New York, New York, and NPI 1902268915, issued on Mar 28, 2016. Check the license (New York 298267, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Masha Slavin
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 298267 NY
Self-reported in NPPES; status is on the state search - Practice location
- 462 1St Ave, New York, NY 10016
- Phone
- (212) 562-2359
- Enumerated
- Mar 28, 2016
- Record last updated
- Jul 15, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (212) 263-1048
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 462 1St Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Leeja AbrahamPharmacist1386195899
- Catherine Abreu, NPAdult Health Nurse Practitioner1578950622
- David AbudahoudPharmacist1427822709
Verify Masha Slavin 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 298267Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
179 Medicare Part D claims for 31 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate28 claims
- Albuterol Sulfate Hfa14 claims
- Atorvastatin Calcium14 claims
- Carvedilol12 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.
Masha Slavin among 12,067 internal medicine physician records in New York
Masha Slavin, 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 2016, is newer than 77% of them.
- NPI issued2016 · 77% of these records are older, 20% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2020 · 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).
2,434 internal medicine physician records list a practice address in New York
They are 2,434 of the 98,468 NPPES records with a practice address in New York, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in New York → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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Common questions
What is Masha Slavin, M.D.'s NPI number?
Masha Slavin, M.D.'s National Provider Identifier (NPI) is 1902268915, issued on Mar 28, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Masha Slavin, M.D. located?
The NPPES record lists a practice address at 462 1St Ave, New York, NY, 10016. Phone: (212) 562-2359. Providers update this record themselves, so call before visiting.
How can I verify Masha Slavin, M.D.'s license?
NPPES lists New York license number 298267, 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 Masha Slavin, M.D. prescribe under Medicare Part D?
In 2024, Masha Slavin, M.D. had 179 Medicare Part D claims for 31 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.