Quick answers
- Which hospitals does John W. Gilboy work at?
- Medicare's official clinician data lists John W. Gilboy at 5 hospitals: Central Maine Medical Center, MaineHealth Maine Medical Center, MaineHealth Stephens Hospital, Northern Light Mercy Hospital and The Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John W. Gilboy see patients?
- Medicare's clinician data lists 4 practice locations, including South Portland, ME, Portland, ME and Westbrook, ME. Call before your visit to confirm the address.
- What is John W. Gilboy's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Critical Care (Intensivists) and Pulmonary Disease.
- Does John W. Gilboy accept Medicare assignment?
- Yes. Medicare's clinician data says John W. Gilboy 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 W. Gilboy?
- (207) 828-1122, as listed in official Medicare / NPI Registry data.
- What is John W. Gilboy's NPI number?
- 1093210171. 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 W. Gilboy works
Medicare's Facility Affiliation Data lists John W. Gilboy at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Central Maine Medical CenterLewiston, ME · Acute Care Hospital · CCN 200024
- MaineHealth Maine Medical CenterPortland, ME · Acute Care Hospital · CCN 200009
- MaineHealth Stephens HospitalNorway, ME · Critical Access Hospital · CCN 201315
- Northern Light Mercy HospitalPortland, ME · Acute Care Hospital · CCN 200008
- The Memorial HospitalNorth Conway, NH · Critical Access Hospital · CCN 301307
Practice locations
Addresses where John W. Gilboy is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Foden Rd, Suite 103South Portland, ME 04106 (207) 828‑1122
- 155 Rover River PkwyPortland, ME 04102 (207) 879‑3000
- 175 Fore River PkwyPortland, ME 04102 (207) 879‑3000
- 40 Park RdWestbrook, ME 04092 (207) 857‑8174
Group practices
Medicare enrollment lists John W. Gilboy as a member of these groups (CMS data updated 2026-10-02).
- Mercy Hospital301 clinicians in the group
- Chest Medicine Associates PA30 clinicians in the group
Specialties
Other internal medicine doctors in South Portland
Clinicians with the same Medicare primary specialty in South Portland, ME — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Tufts University School Of Medicine |
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1093210171 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians