Quick answers
- Which hospitals does Mark D. Hershey work at?
- Medicare's official clinician data lists Mark D. Hershey at 2 hospitals: MaineHealth Mid Coast Hospital and Newton-Wellesley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark D. Hershey see patients?
- Medicare's clinician data lists 2 practice locations, including Brunswick, ME and Newton, MA. Call before your visit to confirm the address.
- What is Mark D. Hershey's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Mark D. Hershey accept Medicare assignment?
- Yes. Medicare's clinician data says Mark D. Hershey 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 Mark D. Hershey?
- (207) 373-6072, as listed in official Medicare / NPI Registry data.
- What is Mark D. Hershey's NPI number?
- 1396776878. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark D. Hershey works
Medicare's Facility Affiliation Data lists Mark D. Hershey at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- MaineHealth Mid Coast HospitalBrunswick, ME · Acute Care Hospital · CCN 200021
- Newton-Wellesley HospitalNewton, MA · Acute Care Hospital · CCN 220101
Practice locations
Addresses where Mark D. Hershey is enrolled with Medicare (CMS data updated 2026-10-02).
- 123 Medical Ctr DrBrunswick, ME 04011 (207) 373‑6072
- 2014 Washington StNewton, MA 02462 (617) 243‑6298
Group practices
Medicare enrollment lists Mark D. Hershey as a member of these groups (CMS data updated 2026-10-02).
- Spectrum Healthcare Partners PA308 clinicians in the group
- Commonwealth Anesthesia Associates, Inc92 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Brunswick
Clinicians with the same Medicare primary specialty in Brunswick, ME — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1396776878 |
| 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