Umair M. Nasir, DO

Medicare activity in 2024

Official CMS public-use data for Umair M. Nasir, 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 low level od decision making, if using time, 20 minutes or more (99213)29 services
2. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)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 cholesterol75%
• Arthritis55%
• Ischemic heart disease42%
• Diabetes34%
• Anxiety30%

Hospitals where Umair M. Nasir works

Medicare's Facility Affiliation Data lists Umair M. Nasir 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 Umair M. Nasir is enrolled with Medicare (CMS data updated October 2, 2026).

• 106 Charles Lindbergh Blvd, Suite BUniondale, NY 11553 (516) 248‑3737

Group practices

Medicare enrollment lists Umair M. Nasir as a member of this group (CMS data updated October 2, 2026).

• Medical Services of Uniondale PC11 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in New York →

Other gastroenterologists in Uniondale

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

• Andrew B. Rosenberg, MD
• Jennifer K. Slane, DO
• Leonard B. Stein, MD
• Felice Mirsky, MD
• Cassandra Sanossian, MD
• Eugene Sullivan, DO
• Benjamin Stern, DO
• Vikram J. Singh, MD

All gastroenterologists in Uniondale →

Other clinicians in Medical Services of Uniondale PC

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

• Andrew B. Rosenberg, MD
• Jennifer K. Slane, DO
• Leonard B. Stein, MD
• Cassandra Sanossian, MD
• Vikram J. Singh, MD
• Felice Mirsky, 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