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Internal Medicine

Charles R. Leahy, MD

Works at hospitals in Canandaigua, NY · New York

Summary

Dr. Charles R. Leahy, MD is an internal medicine doctor at 15 Canandaigua St, Shortsville, NY 14548. Phone: (585) 289-3560. Accepts Medicare assignment. NPI 1912694373. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 15 Canandaigua St, Shortsville, NY 14548 · Directions (1 more location)
  • Phone: (585) 289‑3560
  • Medicare: Accepts Medicare assignment
  • Hospital: F F Thompson Hospital
  • Group practice: The Frederick Ferris Thompson Hospital
  • Medical school: Northeastern Ohio University College Of Medicine · graduated 2023 (3 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Charles R. Leahy, 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 Charles R. Leahy accept Medicare assignment?
Yes. Medicare's clinician data says Charles R. Leahy 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 Charles R. Leahy's NPI number?
1912694373. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Charles R. Leahy works

Medicare's Facility Affiliation Data lists Charles R. Leahy 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.

  • F F Thompson HospitalCanandaigua, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330074

Practice locations

Addresses where Charles R. Leahy is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Charles R. Leahy as a member of this group (CMS data updated October 2, 2026).

  • The Frederick Ferris Thompson Hospital230 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Shortsville

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

All internal medicine doctors in Shortsville →

Other clinicians in The Frederick Ferris Thompson Hospital

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

Clinician information

CredentialMD
Medical schoolNortheastern Ohio University College Of Medicine
Graduation year2023 (3 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1912694373
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians