Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Orthopedic Surgery

Gregory M. Lieberman, MD

Sees patients in Garden City, NY · New York

Summary

Gregory M. Lieberman, MD (Orthopedic Surgery) is enrolled with Medicare at 1 practice location in Garden City, NY. NPI 1285633719. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Gregory M. Lieberman, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Orthopedic SurgeryPrimary specialty
YesAccepts Medicare assignment
37Years since medical school (graduated 1989)
Albert Einstein College Of Medicine Of Yeshiva UniversityMedical school
MaleGender (as listed)
True North Medical Group PCGroup practice

Quick answers

Where does Gregory M. Lieberman see patients?
Medicare's clinician data lists 1 practice location in Garden City, NY. Call before your visit to confirm the address.
What is Gregory M. Lieberman's specialty?
Medicare lists Orthopedic Surgery as the primary specialty, and also Sports Medicine.
Does Gregory M. Lieberman accept Medicare assignment?
Yes. Medicare's clinician data says Gregory M. Lieberman accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Gregory M. Lieberman?
(516) 536-2800, as listed in official Medicare / NPI Registry data.
What is Gregory M. Lieberman's NPI number?
1285633719. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Gregory M. Lieberman is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Gregory M. Lieberman as a member of this group (CMS data updated 2026-10-02).

  • True North Medical Group PC188 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in New York →

Other orthopedic surgeons in Garden City

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

All orthopedic surgeons in Garden City →

Clinician information

CredentialMD
Medical schoolAlbert Einstein College Of Medicine Of Yeshiva University
Graduation year1989
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1285633719
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians