Yizhak Y. Kupfer, MD

Medicare activity in 2024

Official CMS public-use data for Yizhak Y. Kupfer, 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.

Most frequent services

1. Critical care, first 30-74 minutes (99291)628 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)84 services
3. Critical care, each additional 30 minutes (99292)41 services
4. Sleep study in sleep lab with continuous airway pressure (6 years or older) (95811)30 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)27 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%
• Diabetes75%
• Arthritis66%
• Ischemic heart disease60%
• Heart failure57%

Hospitals where Yizhak Y. Kupfer works

Medicare's Facility Affiliation Data lists Yizhak Y. Kupfer 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.

• Maimonides Medical CenterBrooklyn, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330194

Practice locations

Addresses where Yizhak Y. Kupfer is enrolled with Medicare (CMS data updated October 2, 2026).

• 953 49th StBrooklyn, NY 11219 (718) 283‑8342

Group practices

Medicare enrollment lists Yizhak Y. Kupfer as a member of this group (CMS data updated October 2, 2026).

• Maimonides Medical Center-Maimo Criticare FPP14 clinicians in the group

Specialties

• Critical Care (Intensivists)primary
• Pulmonary Diseasealso

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

Other critical care doctors in Brooklyn

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

• Claudia Martina De Araujo Duarte, MD
• Adebayo O. Esan, MD
• Chanaka J. Seneviratne, MD
• George N. Gandev, MD
• Taek S. Yoon, MD
• Scarlett O. Murphy, MD
• Janeen A. Grant-Sittol
• Samuel Hawkins, MD

All critical care doctors in Brooklyn →

Other clinicians in Maimonides Medical Center-Maimo Criticare FPP

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

• Kabu Chawla, MD
• Chanaka J. Seneviratne, MD
• William R. Pascal, MD
• Taek S. Yoon, MD
• Lourdes M. Flaminiano, MD
• Ilya Levin, DO

Clinician information

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