Quick answers
- Which hospitals does Mark J. Messenger work at?
- Medicare's official clinician data lists Mark J. Messenger at 2 hospitals: Lahey Hospital & Medical Center, Burlington and North Shore Medical Center -. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark J. Messenger see patients?
- Medicare's clinician data lists 1 practice location in Canton, MA. Call before your visit to confirm the address.
- What is Mark J. Messenger's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Mark J. Messenger accept Medicare assignment?
- Yes. Medicare's clinician data says Mark J. Messenger 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 J. Messenger?
- (781) 867-2050, as listed in official Medicare / NPI Registry data.
- What is Mark J. Messenger's NPI number?
- 1194726471. 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 J. Messenger works
Medicare's Facility Affiliation Data lists Mark J. Messenger at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA · Acute Care Hospital · CCN 220171
- North Shore Medical Center -Salem, MA · Acute Care Hospital · CCN 220035
Practice locations
Addresses where Mark J. Messenger is enrolled with Medicare (CMS data updated 2026-10-02).
- 45 Dan RdCanton, MA 02021 (781) 867‑2050
Group practices
Medicare enrollment lists Mark J. Messenger as a member of this group (CMS data updated 2026-10-02).
- Vantage Healthcare LLC76 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Canton
Clinicians with the same Medicare primary specialty in Canton, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Icahn School Of Medicine At Mount Sinai |
| Graduation year | 1979 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1194726471 |
| 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