Quick answers
- Which hospitals does Brian D. Marriott work at?
- Medicare's official clinician data lists Brian D. Marriott at 5 hospitals: Beth Israel Deaconess Medical Center, Emerson Hospital -, Lahey Hospital & Medical Center, Burlington, Massachusetts General Hospital and Mount Auburn Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Brian D. Marriott see patients?
- Medicare's clinician data lists 1 practice location in Cambridge, MA. Call before your visit to confirm the address.
- What is Brian D. Marriott's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Brian D. Marriott accept Medicare assignment?
- Yes. Medicare's clinician data says Brian D. Marriott 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.
- Does Brian D. Marriott offer telehealth?
- Medicare's clinician data says Brian D. Marriott offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Brian D. Marriott?
- (617) 258-6896, as listed in official Medicare / NPI Registry data.
- What is Brian D. Marriott's NPI number?
- 1770577926. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Brian D. Marriott works
Medicare's Facility Affiliation Data lists Brian D. Marriott at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Beth Israel Deaconess Medical CenterBoston, MA · Acute Care Hospital · CCN 220086
- Emerson Hospital -W Concord, MA · Acute Care Hospital · CCN 220084
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA · Acute Care Hospital · CCN 220171
- Massachusetts General HospitalBoston, MA · Acute Care Hospital · CCN 220071
- Mount Auburn HospitalCambridge, MA · Acute Care Hospital · CCN 220002
Practice locations
Addresses where Brian D. Marriott is enrolled with Medicare (CMS data updated 2026-10-02).
- 25 Carleton StCambridge, MA 02142 (617) 258‑6896
Group practices
Medicare enrollment lists Brian D. Marriott as a member of this group (CMS data updated 2026-10-02).
- Massachusetts Institute of Technology54 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Cambridge
Clinicians with the same Medicare primary specialty in Cambridge, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Ohio State University College Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1770577926 |
| 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