Jennifer B. Breznay, MD

Medicare activity in 2024

Official CMS public-use data for Jennifer B. Breznay, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)194 services
2. Insertion of needle into vein for collection of blood sample (36415)96 services
3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)89 services
4. Administration of influenza virus vaccine (G0008)30 services
5. Influenza vaccine split virus, preservative free (90662)28 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 cholesterol66%
• Arthritis61%
• Alzheimer's disease or dementia43%
• Depression38%
• Diabetes36%

Hospitals where Jennifer B. Breznay works

Medicare's Facility Affiliation Data lists Jennifer B. Breznay 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 Jennifer B. Breznay is enrolled with Medicare (CMS data updated October 2, 2026).

• 4802 10th AveBrooklyn, NY 11219 (718) 283‑7732

Group practices

Medicare enrollment lists Jennifer B. Breznay as a member of this group (CMS data updated October 2, 2026).

• Maimonides Medical Center - MMC Division of Geriatric Medicine FPP8 clinicians in the group

Specialties

• Geriatric Medicineprimary
• Family Practicealso

Find other Geriatric Medicine doctors in New York →

Other geriatricians in Brooklyn

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

• Salwa M. Gerges, MD
• Sergey I. Genkin, MD
• Prashanta Panta, MD
• Stephen C. Lansey, MD
• Tuan Q. Hua, MD
• Farzana Afroza, MD
• Charles C. Kanner, MD
• Ira Salom, MD

All geriatricians in Brooklyn →

Other clinicians in Maimonides Medical Center - MMC Division of Geriatric Medicine FPP

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

• Salwa M. Gerges, MD
• Velko Voynov, MD
• Elica Shokri, MD
• Natalie A. Marks, MD
• Debra Barnett, NP
• Jane Edwards, NP

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