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Colorectal Surgery (Proctology)

Martin R. Weiser, MD

Sees patients in New York, NY · Brooklyn, NY · New York

Summary

Martin R. Weiser, MD (Colorectal Surgery (Proctology)) is enrolled with Medicare at 3 practice locations in New York, NY and Brooklyn, NY. NPI 1780669291. 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 Martin R. Weiser, 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

Colorectal Surgery (Proctology)Primary specialty
YesAccepts Medicare assignment
YesOffers telehealth
35Years since medical school (graduated 1991)
MaleGender (as listed)
MSKCC Surgery GroupGroup practice (+1 more)

Quick answers

Where does Martin R. Weiser see patients?
Medicare's clinician data lists 3 practice locations, including New York, NY and Brooklyn, NY. Call before your visit to confirm the address.
What is Martin R. Weiser's specialty?
Medicare lists Colorectal Surgery (Proctology) as the primary specialty.
Does Martin R. Weiser accept Medicare assignment?
Yes. Medicare's clinician data says Martin R. Weiser 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 Martin R. Weiser offer telehealth?
Medicare's clinician data says Martin R. Weiser offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Martin R. Weiser?
(212) 639-2000, as listed in official Medicare / NPI Registry data.
What is Martin R. Weiser's NPI number?
1780669291. 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 Martin R. Weiser is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Martin R. Weiser as a member of these groups (CMS data updated 2026-10-02).

  • MSKCC Surgery Group369 clinicians in the group
  • Memorial Medical Care PC13 clinicians in the group

Specialties

Find other Colorectal Surgery (Proctology) doctors in New York →

Other colorectal surgeons in New York

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

All colorectal surgeons in New York →

Clinician information

CredentialMD
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1780669291
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