Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Emergency Medicine

Leisa A. McDonnough Genin, MD

Works at hospitals in Brooklyn, NY · New York

Summary

Dr. Leisa A. McDonnough Genin, MD is an emergency medicine doctor at 121 Dekalb Ave, Brooklyn, NY 11201. Phone: (718) 250-8000. Accepts Medicare assignment. In 2024, Leisa A. McDonnough Genin had 53 Original Medicare patients and 78 services. NPI 1114257896. 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: 121 Dekalb Ave, Brooklyn, NY 11201 · Directions
  • Phone: (718) 250‑8000
  • Medicare: Accepts Medicare assignment
  • Hospital: Brooklyn Hospital Center - Downtown Campus
  • Group practice: Emergency Care Services of New York PC
  • Medical school: State University Of New York Downstate Medical Center · graduated 2007 (19 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Leisa A. McDonnough Genin, 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 Leisa A. McDonnough Genin accept Medicare assignment?
Yes. Medicare's clinician data says Leisa A. McDonnough Genin 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 Leisa A. McDonnough Genin see?
In 2024, CMS data shows 53 Original Medicare patients and 78 services for Leisa A. McDonnough Genin. This counts Original Medicare only and measures volume, not quality.
What is Leisa A. McDonnough Genin's NPI number?
1114257896. 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 Leisa A. McDonnough Genin, 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 patients53
Services billed to Medicare78
Different services or procedures10
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)32 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)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 cholesterol70%
  • Diabetes53%
  • Chronic kidney disease49%
  • Arthritis47%
  • Depression43%

Hospitals where Leisa A. McDonnough Genin works

Medicare's Facility Affiliation Data lists Leisa A. McDonnough Genin 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 Leisa A. McDonnough Genin is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Leisa A. McDonnough Genin as a member of this group (CMS data updated October 2, 2026).

  • Emergency Care Services of New York PC43 clinicians in the group

Specialties

Find other Emergency Medicine doctors in New York →

Other emergency medicine doctors in Brooklyn

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

All emergency medicine doctors in Brooklyn →

Other clinicians in Emergency Care Services of New York PC

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 year2007 (19 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114257896
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