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Internal Medicine

Peter L. Elkin, MD

Sees patients in Buffalo, NY · New York

Summary

Dr. Peter L. Elkin, MD is an internal medicine doctor at 900 Hertel Ave, Buffalo, NY 14216. Phone: (716) 871-1571. Accepts Medicare assignment. NPI 1568432656. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 900 Hertel Ave, Buffalo, NY 14216 · Directions
  • Phone: (716) 871‑1571
  • Medicare: Accepts Medicare assignment
  • Group practice: Kaleida Health
  • Medical school: graduated 1985 (41 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Peter L. Elkin, 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 L. Elkin accept Medicare assignment?
Yes. Medicare's clinician data says Peter L. Elkin accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Peter L. Elkin's NPI number?
1568432656. 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 Peter L. Elkin is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Peter L. Elkin as a member of this group (CMS data updated October 2, 2026).

  • Kaleida Health236 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Buffalo

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

All internal medicine doctors in Buffalo →

Other clinicians in Kaleida Health

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

Clinician information

CredentialMD
Graduation year1985 (41 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1568432656
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 October 2, 2026, retrieved October 29, 2026
  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