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Internal Medicine

John S. Harrington, MD

Works at hospitals in Schenectady, NY · New York, NY · Albany, NY · New York

Summary

John S. Harrington, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Schenectady, NY, New York, NY and Albany, NY. NPI 1093081911. 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 John S. 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
14Years since medical school (graduated 2012)
State University Of Ny Upstate Medical UniversityMedical school
MaleGender (as listed)
Weill Medical College of CornellGroup practice (+3 more)

Quick answers

Which hospitals does John S. Harrington work at?
Medicare's official clinician data lists John S. Harrington at 3 hospitals: Ellis Hospital, New York-Presbyterian Hospital and St Peter's Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John S. Harrington see patients?
Medicare's clinician data lists 4 practice locations, including Schenecctady, NY, Schenectady, NY and New York, NY. Call before your visit to confirm the address.
What is John S. Harrington's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Critical Care (Intensivists) and Pulmonary Disease.
Does John S. Harrington accept Medicare assignment?
Yes. Medicare's clinician data says John S. 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.
What is the phone number for John S. Harrington?
(518) 243-4000, as listed in official Medicare / NPI Registry data.
What is John S. Harrington's NPI number?
1093081911. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John S. Harrington works

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

Group practices

Medicare enrollment lists John S. Harrington as a member of these groups (CMS data updated 2026-10-02).

  • Weill Medical College of Cornell2,051 clinicians in the group
  • Ellis Hospital249 clinicians in the group
  • Lawrence Medical Associates PC224 clinicians in the group
  • Sunnyview Hospital and Rehabilitation Center33 clinicians in the group

Specialties

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Schenecctady

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

All internal medicine doctors in Schenecctady →

Clinician information

CredentialMD
Medical schoolState University Of Ny Upstate Medical University
Graduation year2012
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1093081911
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