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Internal Medicine

Andrew Zaretsky, MD

Works at hospitals in Bronx, NY · New York, NY · White Plains, NY · New York

Summary

Andrew Zaretsky, MD (Internal Medicine) is listed by Medicare at 5 hospitals in Bronx, NY, New York, NY and White Plains, NY. NPI 1548261829. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Andrew Zaretsky, 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
44Years since medical school (graduated 1982)
MaleGender (as listed)
Calvary Hospital IncGroup practice

Quick answers

Which hospitals does Andrew Zaretsky work at?
Medicare's official clinician data lists Andrew Zaretsky at 5 hospitals: Montefiore Medical Center, Mount Sinai West, New York-Presbyterian Hospital, NYU Langone Hospitals and White Plains Hospital Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Andrew Zaretsky see patients?
Medicare's clinician data lists 1 practice location in Bronx, NY. Call before your visit to confirm the address.
What is Andrew Zaretsky's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Andrew Zaretsky accept Medicare assignment?
Yes. Medicare's clinician data says Andrew Zaretsky 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 Andrew Zaretsky?
(718) 518-2000, as listed in official Medicare / NPI Registry data.
What is Andrew Zaretsky's NPI number?
1548261829. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Andrew Zaretsky works

Medicare's Facility Affiliation Data lists Andrew Zaretsky at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Andrew Zaretsky is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Andrew Zaretsky as a member of this group (CMS data updated 2026-10-02).

  • Calvary Hospital Inc52 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Bronx

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

All internal medicine doctors in Bronx →

Clinician information

CredentialMD
Graduation year1982
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1548261829
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians