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Emergency Medicine

John Irwin, MD

Works at hospitals in Ellsworth, ME · Dover Foxcroft, ME · Brunswick, GA · Maine, Georgia

Summary

John Irwin, MD (Emergency Medicine) is listed by Medicare at 3 hospitals in Ellsworth, ME, Dover Foxcroft, ME and Brunswick, GA. NPI 1154610640. 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 Irwin, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
15Years since medical school (graduated 2011)
MaleGender (as listed)
Emergency Physicians IncGroup practice (+1 more)

Quick answers

Which hospitals does John Irwin work at?
Medicare's official clinician data lists John Irwin at 3 hospitals: Northern Light Maine Coast Hospital, Northern Light Mayo Hospital and Southeast Georgia Health System- Brunswick Campus. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John Irwin see patients?
Medicare's clinician data lists 4 practice locations, including Presque Isle, ME, Saint Marys, GA and Brunswick, GA. Call before your visit to confirm the address.
What is John Irwin's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does John Irwin accept Medicare assignment?
Yes. Medicare's clinician data says John Irwin 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 Irwin?
(207) 768-4000, as listed in official Medicare / NPI Registry data.
What is John Irwin's NPI number?
1154610640. 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 Irwin works

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

Group practices

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

  • Emergency Physicians Inc101 clinicians in the group
  • Emergency Medicine Services of Maine LLC56 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Maine →

Other emergency medicine doctors in Presque Isle

Clinicians with the same Medicare primary specialty in Presque Isle, ME — not a recommendation.

All emergency medicine doctors in Presque Isle →

Clinician information

CredentialMD
Graduation year2011
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1154610640
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