Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Zayan Mahmooth, MD

Individual provider Hospitalist Physician · NPI 1114488012

Zayan Mahmooth, MD practises Internal Medicine in New York, New York. Graduated from Emory University School of Medicine in 2019, 7 years ago. Practices with Icahn School of Medicine at Mount Sinai, a 2,791-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
7
Trained at
Emory University School of Medicine
Licensed in
NY
In the registry since
2019
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

First Avenue At 16th St
New York, NY 10003
Phone: (212) 844-1808
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 310 E 14th St, New York, NY 10003-4284 — (212) 979-4000

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 325630 (NY)

Record details

NPI number1114488012
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 26, 2019
Last updated in NPPESAugust 25, 2023
Certification dateAugust 23, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolEMORY UNIVERSITY SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Icahn School Of Medicine At Mount Sinai — 2791 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients120
Services billed 275 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Icahn School of Medicine at Mount Sinai

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2791 clinicians in the practice; 12 are shown here.

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