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Internal Medicine

Brian M. Mazure, MD

Works at hospitals in Manhasset, NY · Glen Cove, NY · New York

Summary

Dr. Brian M. Mazure, MD is an internal medicine doctor at 300 Community Dr, Manhasset, NY 11030. Phone: (516) 562-3058. Accepts Medicare assignment. In 2024, Brian M. Mazure had 374 Original Medicare patients and 3,051 services. NPI 1134185135. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 300 Community Dr, Manhasset, NY 11030 · Directions
  • Phone: (516) 562‑3058
  • Medicare: Accepts Medicare assignment
  • Hospitals: North Shore University Hospital, Northwell Hospital Glen Cove
  • Group practice: North Shore-Lij Medical PC
  • Medical school: State University Of New York At Stony Brook, School Of Medicine · graduated 2002 (24 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Brian M. Mazure, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Brian M. Mazure accept Medicare assignment?
Yes. Medicare's clinician data says Brian M. Mazure accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Brian M. Mazure see?
In 2024, CMS data shows 374 Original Medicare patients and 3,051 services for Brian M. Mazure. This counts Original Medicare only and measures volume, not quality.
What is Brian M. Mazure's NPI number?
1134185135. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Brian M. Mazure, 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.

Original Medicare patients374
Services billed to Medicare3,051
Different services or procedures37
Participating Medicare providerYes
Average age of these patients76

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)631 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)563 services
  3. Insertion of needle into vein for collection of blood sample (36415)546 services
  4. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)225 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)218 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 cholesterol75%
  • High blood pressure69%
  • Arthritis45%
  • Ischemic heart disease30%
  • Diabetes22%
  • Anxiety22%

Hospitals where Brian M. Mazure works

Medicare's Facility Affiliation Data lists Brian M. Mazure 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
  • Northwell Hospital Glen CoveGlen Cove, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330181

Practice locations

Addresses where Brian M. Mazure is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • North Shore-Lij Medical PC6,440 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Manhasset

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

All internal medicine doctors in Manhasset →

Other clinicians in North Shore-Lij Medical PC

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

Clinician information

CredentialMD
Medical schoolState University Of New York At Stony Brook, School Of Medicine
Graduation year2002 (24 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1134185135
CorrectionsReport an error or suggest an update →

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