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Internal Medicine

David E. McMahon, MD

Works at hospitals in Circleville, OH · Columbus, OH · Ohio

Summary

David E. McMahon, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Circleville, OH and Columbus, OH. NPI 1033174339. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about David E. McMahon, 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
YesAccepts Medicare assignment
YesOffers telehealth
48Years since medical school (graduated 1978)
University Of Chicago, Pritzker School Of MedicineMedical school
MaleGender (as listed)
OhioHealth CorporationGroup practice

Quick answers

Which hospitals does David E. McMahon work at?
Medicare's official clinician data lists David E. McMahon at 3 hospitals: Berger Hospital, Doctors Hospital and Riverside Methodist Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does David E. McMahon see patients?
Medicare's clinician data lists 1 practice location in Circleville, OH. Call before your visit to confirm the address.
What is David E. McMahon's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does David E. McMahon accept Medicare assignment?
Yes. Medicare's clinician data says David E. McMahon 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 David E. McMahon offer telehealth?
Medicare's clinician data says David E. McMahon offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for David E. McMahon?
(740) 420-8174, as listed in official Medicare / NPI Registry data.
What is David E. McMahon's NPI number?
1033174339. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where David E. McMahon works

Medicare's Facility Affiliation Data lists David E. McMahon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where David E. McMahon is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists David E. McMahon as a member of this group (CMS data updated 2026-10-02).

  • OhioHealth Corporation2,314 clinicians in the group

Specialties

Find other Internal Medicine doctors in Ohio →

Other internal medicine doctors in Circleville

Clinicians with the same Medicare primary specialty in Circleville, OH — not a recommendation.

All internal medicine doctors in Circleville →

Clinician information

CredentialMD
Medical schoolUniversity Of Chicago, Pritzker School Of Medicine
Graduation year1978
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1033174339
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians