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Gastroenterology

Peter K. Slotwiner-Nie, MD

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

Summary

Dr. Peter K. Slotwiner-Nie, MD is a gastroenterologist at 111 E 210th St, Bronx, NY 10467. May accept Medicare assignment. In 2024, Peter K. Slotwiner-Nie had 310 Original Medicare patients and 639 services. NPI 1508812405. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 111 E 210th St, Bronx, NY 10467 · Directions
  • Medicare: May accept Medicare assignment
  • Hospitals: Montefiore Medical Center, White Plains Hospital Center
  • Group practice: Montefiore Medical Center
  • Medical school: University Of Chicago, Pritzker School Of Medicine · graduated 1993 (33 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Peter K. Slotwiner-Nie, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Peter K. Slotwiner-Nie accept Medicare assignment?
Medicare's clinician data says Peter K. Slotwiner-Nie may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Peter K. Slotwiner-Nie see?
In 2024, CMS data shows 310 Original Medicare patients and 639 services for Peter K. Slotwiner-Nie. This counts Original Medicare only and measures volume, not quality.
What is Peter K. Slotwiner-Nie's NPI number?
1508812405. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Peter K. Slotwiner-Nie, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients310
Services billed to Medicare639
Different services or procedures25
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)165 services
  2. Biopsy of large bowel using a flexible endoscope (45380)93 services
  3. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)82 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)67 services
  5. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)55 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol74%
  • Arthritis46%
  • Diabetes42%
  • Ischemic heart disease31%
  • Chronic kidney disease28%

Hospitals where Peter K. Slotwiner-Nie works

Medicare's Facility Affiliation Data lists Peter K. Slotwiner-Nie at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Peter K. Slotwiner-Nie is enrolled with Medicare (CMS data updated October 2, 2026).

  • 111 E 210th StBronx, NY 10467

Group practices

Medicare enrollment lists Peter K. Slotwiner-Nie as a member of this group (CMS data updated October 2, 2026).

  • Montefiore Medical Center2,820 clinicians in the group

Specialties

Find other Gastroenterology doctors in New York →

Other gastroenterologists in Bronx

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

All gastroenterologists in Bronx →

Other clinicians in Montefiore Medical Center

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Chicago, Pritzker School Of Medicine
Graduation year1993 (33 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
TelehealthOffers telehealth services
NPI (National Provider Identifier)1508812405
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians