Adam Fiterstein, MD
Internal Medicine Physician · New York, NY
Adam Fiterstein, MD is an internal medicine physician with a practice address in New York, New York, and NPI 1215995055, issued on May 2, 2006. Check the license (New York 216649, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Adam Fiterstein
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 216649 NY
Self-reported in NPPES; status is on the state search - Practice location
- 100 E 77TH St, New York, NY 10021
- Phone
- (212) 434-2650
- Enumerated
- May 2, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (212) 434-4512
- Medicaid ID
- 02094535 NY
- Medicare enrollment
- Enrolled (PECOS I20080321000230); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 100 E 77TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Paul Alfano, M.D.Anesthesiology Physician1154327294
- Michael Amzallag, M.D.Anesthesiology Physician1235135377
- Miguel Armas, P.A.Surgical Physician Assistant1134270572
- Ekaterina AronovPhysician Assistant1174668941
- Shanthamallappa Ashok, MDAnesthesiology Physician1942206081
- David Begleiter, M.D.Emergency Medicine Physician1376757930
Verify Adam Fiterstein 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 216649Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average internal medicine physician in 2024
263 Medicare Part D claims for 206 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Azithromycin42 claims
- Paxlovid33 claims
- Sulfamethoxazole-Trimethoprim21 claims
- Azelastine Hcl17 claims
- Fluticasone Propionate14 claims
- Methylprednisolone14 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.
Bills Medicare through one group practice
- Optum Urgent Care PLLCLittle Neck, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Adam Fiterstein among 12,067 internal medicine physician records in New York
Adam Fiterstein, MD 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1996 · median 2002 among the 7,221 with a school on file
- Record last updated2026 · 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
- Anne-Marie Audet, MDNew York, NY 100211538142104
- Renier Brentjens, MDNew York, NY 100211588635510
- Mark Dursztman, M.D.New York, NY 100211194700161
- Barbara Egan, MDNew York, NY 100211376514307
- Boris Ivkov, M.D.New York, NY 100211992791354
- Amsale Ketema, MDNew York, NY 100211629049663
- Debra Mangino, MDNew York, NY 100211528039575
- Anna Rita Marcelli, MDNew York, NY 100211437120482
Common questions
What is Adam Fiterstein, MD's NPI number?
Adam Fiterstein, MD's National Provider Identifier (NPI) is 1215995055, issued on May 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Adam Fiterstein, MD located?
The NPPES record lists a practice address at 100 E 77TH St, New York, NY, 10021. Phone: (212) 434-2650. Providers update this record themselves, so call before visiting.
How can I verify Adam Fiterstein, MD's license?
NPPES lists New York license number 216649, 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 Adam Fiterstein, MD prescribe under Medicare Part D?
In 2024, Adam Fiterstein, MD had 263 Medicare Part D claims for 206 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.