Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Mahmoud El-Tamer, MD

Individual provider Specialist · NPI 1235201856

Dr. Mahmoud El-Tamer, MD is a General Surgery in New York, New York. Qualified in 1981, 45 years ago. Practices with MSKCC Surgery Group, a 365-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
45
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 E 66th St
New York, NY 10065-6800
Phone: (646) 888-4753
Fax: (646) 888-4921
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 193945-1 (NY)

Record details

NPI number1235201856
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 15, 2006
Last updated in NPPESAugust 25, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Also practisesSURGICAL ONCOLOGY
Medical schoolOTHER
Graduated 1981 (45 years in practice)
Group practice Mskcc Surgery Group — 365 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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