Quick answers
- Which hospitals does Michael J. Mason work at?
- Medicare's official clinician data lists Michael J. Mason at 4 hospitals: Lincolnhealth, MaineHealth Maine Medical Center, MaineHealth Mid Coast Hospital and Northern Light Mercy Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael J. Mason see patients?
- Medicare's clinician data lists 6 practice locations, including Brunswick, ME, Portland, ME and Westbrook, ME. Call before your visit to confirm the address.
- What is Michael J. Mason's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Michael J. Mason accept Medicare assignment?
- Yes. Medicare's clinician data says Michael J. Mason 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 Michael J. Mason?
- (207) 373-1707, as listed in official Medicare / NPI Registry data.
- What is Michael J. Mason's NPI number?
- 1598793317. 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 J. Mason works
Medicare's Facility Affiliation Data lists Michael J. Mason at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- LincolnhealthDamariscotta, ME · Critical Access Hospital · CCN 201302
- MaineHealth Maine Medical CenterPortland, ME · Acute Care Hospital · CCN 200009
- MaineHealth Mid Coast HospitalBrunswick, ME · Acute Care Hospital · CCN 200021
- Northern Light Mercy HospitalPortland, ME · Acute Care Hospital · CCN 200008
Practice locations
Addresses where Michael J. Mason is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 121 Medical Ctr Dr, Suite 2550Brunswick, ME 04011 (207) 373‑1707
- 155 Rover River PkwyPortland, ME 04102 (207) 879‑3000
- 175 Fore River PkwyPortland, ME 04102 (207) 879‑3000
- 22 Bramhall StPortland, ME 04102
- 40 Park RdWestbrook, ME 04092 (207) 857‑8174
Group practices
Medicare enrollment lists Michael J. Mason as a member of these groups (CMS data updated 2026-10-02).
- MaineHealth2,633 clinicians in the group
- Mercy Hospital301 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Maine
Clinicians with the same Medicare primary specialty in Maine — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Emory University School Of Medicine |
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1598793317 |
| 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