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Internal Medicine

Mohamed S. Elhaj, MD

Works at hospitals in New York, NY · New York

Summary

Dr. Mohamed S. Elhaj, MD is an internal medicine doctor at 3201 Kings Hwy, Brooklyn, NY 11234. Phone: (718) 951-2851. Accepts Medicare assignment. NPI 1285375170. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 3201 Kings Hwy, Brooklyn, NY 11234 · Directions
  • Phone: (718) 951‑2851
  • Medicare: Accepts Medicare assignment
  • Hospital: Mount Sinai Beth Israel
  • Group practice: Icahn School of Medicine at Mount Sinai
  • Medical school: graduated 2019 (7 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Mohamed S. Elhaj, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Mohamed S. Elhaj accept Medicare assignment?
Yes. Medicare's clinician data says Mohamed S. Elhaj accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Mohamed S. Elhaj's NPI number?
1285375170. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mohamed S. Elhaj works

Medicare's Facility Affiliation Data lists Mohamed S. Elhaj at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Mohamed S. Elhaj is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mohamed S. Elhaj as a member of this group (CMS data updated October 2, 2026).

  • Icahn School of Medicine at Mount Sinai2,843 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Brooklyn

Clinicians with the same Medicare primary specialty in Brooklyn, NY — not a recommendation.

All internal medicine doctors in Brooklyn →

Other clinicians in Icahn School of Medicine at Mount Sinai

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1285375170
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians