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

Internal Medicine

Andre G. Giannakopoulos, MD

Sees patients in East Meadow, NY · New York

Summary

Andre G. Giannakopoulos, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in East Meadow, NY. NPI 1407942162. 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 Andre G. Giannakopoulos, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
24Years since medical school (graduated 2002)
MaleGender (as listed)

Quick answers

Where does Andre G. Giannakopoulos see patients?
Medicare's clinician data lists 1 practice location in East Meadow, NY. Call before your visit to confirm the address.
What is Andre G. Giannakopoulos's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Andre G. Giannakopoulos accept Medicare assignment?
Yes. Medicare's clinician data says Andre G. Giannakopoulos 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 Andre G. Giannakopoulos?
(516) 333-5555, as listed in official Medicare / NPI Registry data.
What is Andre G. Giannakopoulos's NPI number?
1407942162. 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 Andre G. Giannakopoulos is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in East Meadow

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

All internal medicine doctors in East Meadow →

Clinician information

CredentialMD
Graduation year2002
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1407942162
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