Mahmoud El-Tamer, M.D.
Specialist · New York, NY
Mahmoud El-Tamer, M.D. is a specialist with a practice address in New York, New York, and NPI 1235201856, issued on Nov 15, 2006. Check the license (New York 193945-1, as entered in NPPES) with the New York board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mahmoud El-Tamer
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 193945-1 NY
Self-reported in NPPES; status is on the state search - Practice location
- 300 E 66TH St, New York, NY 10065
- Phone
- (646) 888-4753
- Enumerated
- Nov 15, 2006
- Record last updated
- Aug 25, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (646) 888-4921
- Medicaid ID
- 01859383 NY
- Medicare enrollment
- Enrolled (PECOS I20040412001280); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest specialist records → All 22,636 in New York → Look up another NPI →
Also registered at 300 E 66TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danielle Alleva, AGACNPAcute Care Nurse Practitioner1104370022
- Cara Anselmo, MS, RD, CDNRegistered Dietitian1083900997
- Ashley Arkema, FNPAdult Health Nurse Practitioner1902247372
- Daniella Audi Blotta, MDStudent in an Organized Health Care Education/Training Program1710815261
- Fiyinfolu Balogun, M.D., PH.D.Hematology & Oncology Physician1508277674
- Solange BayardSurgery Physician1932631769
Verify Mahmoud El-Tamer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New York board licenses this profession
Search for license 193945-1Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 90.8 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
- Mskcc Surgery GroupNew York, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mahmoud El-Tamer among 22,636 specialist records in New York
Mahmoud El-Tamer, M.D. is one of 22,636 specialist records with a practice address in New York. 6% 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 1% of them.
- NPI issued2006 · 1% of these records are older, 92% newer
- In a Medicare fileYes · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 4% of these records are
- Graduated1981 · median 1990 among the 943 with a school on file
- Record last updated2013 · 73% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,896 specialist records list a practice address in New York
They are 1,896 of the 98,468 NPPES records with a practice address in New York, and 22,636 specialist records in New York.
All 22,636 in New York → Every provider in New York → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
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- Susan Loeb-Zeitlin, MDNew York, NY 100651679510978
- David Menche, M.D.New York, NY 100651194736215
- Alyson Penstein, MDNew York, NY 100651396703898
- Margaret Polaneczky, MDNew York, NY 100651023055324
- Leon Popovitz, M.D.New York, NY 100651437198892
Common questions
What is Mahmoud El-Tamer, M.D.'s NPI number?
Mahmoud El-Tamer, M.D.'s National Provider Identifier (NPI) is 1235201856, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mahmoud El-Tamer, M.D. located?
The NPPES record lists a practice address at 300 E 66TH St, New York, NY, 10065. Phone: (646) 888-4753. Providers update this record themselves, so call before visiting.
How can I verify Mahmoud El-Tamer, M.D.'s license?
NPPES lists New York license number 193945-1, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.
What is Mahmoud El-Tamer, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.8 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.