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Gastroenterology

Arnold J. Markowitz, MD

Sees patients in New York, NY · New York

Summary

Arnold J. Markowitz, MD (Gastroenterology) is enrolled with Medicare at 2 practice locations in New York, NY. NPI 1770683286. 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 Arnold J. Markowitz, 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

GastroenterologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
39Years since medical school (graduated 1987)
New York University School Of MedicineMedical school
MaleGender (as listed)
Memorial Gastroenterology GroupGroup practice

Quick answers

Where does Arnold J. Markowitz see patients?
Medicare's clinician data lists 2 practice locations, including New York, NY. Call before your visit to confirm the address.
What is Arnold J. Markowitz's specialty?
Medicare lists Gastroenterology as the primary specialty.
Does Arnold J. Markowitz accept Medicare assignment?
Yes. Medicare's clinician data says Arnold J. Markowitz 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.
Does Arnold J. Markowitz offer telehealth?
Medicare's clinician data says Arnold J. Markowitz offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Arnold J. Markowitz?
(212) 639-2000, as listed in official Medicare / NPI Registry data.
What is Arnold J. Markowitz's NPI number?
1770683286. 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 Arnold J. Markowitz is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Arnold J. Markowitz as a member of this group (CMS data updated 2026-10-02).

  • Memorial Gastroenterology Group24 clinicians in the group

Specialties

Find other Gastroenterology doctors in New York →

Other gastroenterologists in New York

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

All gastroenterologists in New York →

Clinician information

CredentialMD
Medical schoolNew York University School Of Medicine
Graduation year1987
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1770683286
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