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Critical Care (Intensivists)

Sharon S. Leung, MD

Works at hospitals in Bronx, NY · New York

Summary

Dr. Sharon S. Leung, MD is a critical care doctor at 111 E 210th St, Bronx, NY 10467. May accept Medicare assignment. In 2024, Sharon S. Leung had 40 Original Medicare patients and 61 services. NPI 1639481328. 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: Critical care doctor (Medicare lists Critical Care (Intensivists))
  • Address: 111 E 210th St, Bronx, NY 10467 · Directions
  • Medicare: May accept Medicare assignment
  • Hospital: Montefiore Medical Center
  • Group practice: Montefiore Medical Center
  • Medical school: State University Of New York Downstate Medical Center · graduated 2005 (21 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Sharon S. Leung, 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 Sharon S. Leung accept Medicare assignment?
Medicare's clinician data says Sharon S. Leung may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Sharon S. Leung see?
In 2024, CMS data shows 40 Original Medicare patients and 61 services for Sharon S. Leung. This counts Original Medicare only and measures volume, not quality.
What is Sharon S. Leung's NPI number?
1639481328. 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 Sharon S. Leung, 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 patients40
Services billed to Medicare61
Different services or procedures3
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Critical care, first 30-74 minutes (99291)31 services
  2. Critical care, each additional 30 minutes (99292)29 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%
  • Ischemic heart disease65%
  • Chronic kidney disease65%
  • Heart failure63%
  • Diabetes55%

Hospitals where Sharon S. Leung works

Medicare's Facility Affiliation Data lists Sharon S. Leung 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 Sharon S. Leung is enrolled with Medicare (CMS data updated October 2, 2026).

  • 111 E 210th StBronx, NY 10467

Group practices

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

  • Montefiore Medical Center2,820 clinicians in the group

Specialties

Find other Critical Care (Intensivists) doctors in New York →

Other critical care doctors in Bronx

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

All critical care doctors in Bronx →

Other clinicians in Montefiore Medical Center

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

Clinician information

CredentialMD
Medical schoolState University Of New York Downstate Medical Center
Graduation year2005 (21 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1639481328
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