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Internal Medicine

Michael D. Harrington, MD

Works at hospitals in Cleveland, OH · Ohio

Summary

Michael D. Harrington, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Cleveland, OH. NPI 1174556096. 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 Michael D. Harrington, 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
32Years since medical school (graduated 1994)
Ohio State University College Of MedicineMedical school
MaleGender (as listed)
The MetroHealth SystemGroup practice

Quick answers

Which hospitals does Michael D. Harrington work at?
Medicare's official clinician data lists Michael D. Harrington at 2 hospitals: Cleveland Clinic and MetroHealth System. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Michael D. Harrington see patients?
Medicare's clinician data lists 2 practice locations, including Cleveland, OH. Call before your visit to confirm the address.
What is Michael D. Harrington's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Geriatric Medicine and Hospice/Palliative Care.
Does Michael D. Harrington accept Medicare assignment?
Yes. Medicare's clinician data says Michael D. Harrington 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 Michael D. Harrington offer telehealth?
Medicare's clinician data says Michael D. Harrington offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Michael D. Harrington?
(216) 778-7800, as listed in official Medicare / NPI Registry data.
What is Michael D. Harrington's NPI number?
1174556096. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Michael D. Harrington works

Medicare's Facility Affiliation Data lists Michael D. Harrington 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 Michael D. Harrington is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Michael D. Harrington as a member of this group (CMS data updated 2026-10-02).

  • The MetroHealth System1,144 clinicians in the group

Specialties

Find other Internal Medicine doctors in Ohio →

Other internal medicine doctors in Cleveland

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

All internal medicine doctors in Cleveland →

Clinician information

CredentialMD
Medical schoolOhio State University College Of Medicine
Graduation year1994
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1174556096
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