Quick answers
- Which hospitals does William Mayo-Smith work at?
- Medicare's official clinician data lists William Mayo-Smith at 3 hospitals: Brigham and Women Faulkner Hospital, Brigham and Women's Hospital and Massachusetts General Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Mayo-Smith see patients?
- Medicare's clinician data lists 2 practice locations, including Foxborough, MA and Boston, MA. Call before your visit to confirm the address.
- What is William Mayo-Smith's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does William Mayo-Smith accept Medicare assignment?
- Yes. Medicare's clinician data says William Mayo-Smith 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 William Mayo-Smith?
- (508) 718-4000, as listed in official Medicare / NPI Registry data.
- What is William Mayo-Smith's NPI number?
- 1851389720. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William Mayo-Smith works
Medicare's Facility Affiliation Data lists William Mayo-Smith at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Brigham and Women Faulkner HospitalJamaica Plain, MA · Acute Care Hospital · CCN 220119
- Brigham and Women's HospitalBoston, MA · Acute Care Hospital · CCN 220110
- Massachusetts General HospitalBoston, MA · Acute Care Hospital · CCN 220071
Practice locations
Addresses where William Mayo-Smith is enrolled with Medicare (CMS data updated 2026-10-02).
- 20 Patriot PlFoxborough, MA 02035 (508) 718‑4000
- 75 Francis StBoston, MA 02115 (617) 732‑5500
Group practices
Medicare enrollment lists William Mayo-Smith as a member of this group (CMS data updated 2026-10-02).
- Brigham and Womens Physicians Organization Inc2,994 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Foxborough
Clinicians with the same Medicare primary specialty in Foxborough, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Js Weill Medical College, Cornell University |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851389720 |
| 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