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Emergency Medicine

Nima Majlesi, DO

Works at hospitals in Staten Island, NY · New York

Summary

Dr. Nima Majlesi, DO is an emergency medicine doctor at 1345 Rxr Plz, Uniondale, NY 11556. Phone: (516) 783-4600. Accepts Medicare assignment. In 2024, Nima Majlesi had 258 Original Medicare patients and 270 services. NPI 1548451743. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 1345 Rxr Plz, Uniondale, NY 11556 · Directions (1 more location)
  • Phone: (516) 783‑4600
  • Medicare: Accepts Medicare assignment
  • Hospital: Staten Island University Hospital
  • Group practice: North Shore-Lij Medical PC
  • Medical school: University Of New England, College Of Osteo Medicine · graduated 2004 (22 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Nima Majlesi, 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 Nima Majlesi accept Medicare assignment?
Yes. Medicare's clinician data says Nima Majlesi 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.
How many Medicare patients does Nima Majlesi see?
In 2024, CMS data shows 258 Original Medicare patients and 270 services for Nima Majlesi. This counts Original Medicare only and measures volume, not quality.
What is Nima Majlesi's NPI number?
1548451743. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Nima Majlesi, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients258
Services billed to Medicare270
Different services or procedures25
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)63 services
  2. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)53 services
  3. Emergency department visit with moderate level of medical decision making (99284)28 services
  4. Critical care, first 30-74 minutes (99291)26 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)19 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis62%
  • Diabetes53%
  • Ischemic heart disease47%
  • Anxiety45%

Hospitals where Nima Majlesi works

Medicare's Facility Affiliation Data lists Nima Majlesi at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Nima Majlesi is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Nima Majlesi as a member of this group (CMS data updated October 2, 2026).

  • North Shore-Lij Medical PC6,440 clinicians in the group

Specialties

Find other Emergency Medicine doctors in New York →

Other emergency medicine doctors in Uniondale

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

All emergency medicine doctors in Uniondale →

Other clinicians in North Shore-Lij Medical PC

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

Clinician information

CredentialDO
Medical schoolUniversity Of New England, College Of Osteo Medicine
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1548451743
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. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians