Roland Nassim, MD

Medicare activity in 2024

Official CMS public-use data for Roland Nassim, 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)753 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)404 services
3. Insertion of needle into vein for collection of blood sample (36415)260 services
4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)232 services
5. Telephone medical discussion with physician, 11-20 minutes (99442)227 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%
• Arthritis53%
• Diabetes50%
• Stroke or mini-stroke43%
• Ischemic heart disease40%

Hospitals where Roland Nassim works

Medicare's Facility Affiliation Data lists Roland Nassim 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.

• North Shore University HospitalManhasset, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330106

Practice locations

Addresses where Roland Nassim is enrolled with Medicare (CMS data updated October 2, 2026).

• 1000 Northern Blvd, Suite 375Great Neck, NY 11021 (516) 773‑3942
• 138 -48 Elder AveFlushing, NY 11355 (718) 321‑9500

Group practices

Medicare enrollment lists Roland Nassim as a member of this group (CMS data updated October 2, 2026).

• Nassim Medical PC2 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Great Neck

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

• Bagdig S. Baghdassarian, MD
• Shlomo Kuperman, MD
• Johanna Martinez, MD
• Sunil K. Yadav
• Afshin Tavakoly, MD
• Mark G. Stokes, MD
• Md Mehedi Hasan
• Richard Mermelstein, MD

All internal medicine doctors in Great Neck →

Other clinicians in Nassim Medical PC

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

• Ariel Nassim, 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