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Internal Medicine

John Cleary, DO

Sees patients in Buffalo, NY · New York

Summary

John Cleary, DO (Internal Medicine) is enrolled with Medicare at 1 practice location in Buffalo, NY. NPI 1972299428. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John Cleary, 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
May acceptAccepts Medicare assignment
3Years since medical school (graduated 2023)
Lake Erie College Of Osteopathic Medicine, ErieMedical school
MaleGender (as listed)

Quick answers

Where does John Cleary see patients?
Medicare's clinician data lists 1 practice location in Buffalo, NY. Call before your visit to confirm the address.
What is John Cleary's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does John Cleary accept Medicare assignment?
Medicare's clinician data says John Cleary may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
What is John Cleary's NPI number?
1972299428. 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 John Cleary is enrolled with Medicare (CMS data updated 2026-10-02).

  • 726 Exchange St, Suite 710Buffalo, NY 14210

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 →

Clinician information

CredentialDO
Medical schoolLake Erie College Of Osteopathic Medicine, Erie
Graduation year2023
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1972299428
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