Carolyn Bendor Grynbaum, MD

Medicare activity in 2024

Official CMS public-use data for Carolyn Bendor Grynbaum, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)321 services
2. Hospital discharge day management, 30 minutes or less (99238)35 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)32 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%
• Arthritis69%
• Heart failure63%
• Ischemic heart disease60%

Hospitals where Carolyn Bendor Grynbaum works

Medicare's Facility Affiliation Data lists Carolyn Bendor Grynbaum 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 Carolyn Bendor Grynbaum is enrolled with Medicare (CMS data updated October 2, 2026).

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

Group practices

Medicare enrollment lists Carolyn Bendor Grynbaum as a member of this group (CMS data updated October 2, 2026).

• Maimonides Medical Center Maimonides Primary Care FPP32 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Brooklyn

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

• Myo Win, MD
• Jeffrey C. Marc, MD
• Nabeeh Hauter, MD
• Min A. Wong, MD
• Javed I. Saqib, MD
• Mahreen Akram, MD
• Sowmya S. Balusu, MD
• Ching J. Xie, MD

All internal medicine doctors in Brooklyn →

Other clinicians in Maimonides Medical Center Maimonides Primary Care FPP

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

• Kristina H. Ernst, MD
• Navjot Somal, MD
• Serena Grewal, MD
• Anita Kaminer, NP
• Yekaterina Gordon, MD
• Navindra Khalikaprasad, MD

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