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Diagnostic Radiology

William Mehan, MD

Works at hospitals in Boston, MA · Oak Bluffs, MA · Newton, MA … · Massachusetts

Summary

William Mehan, MD (Diagnostic Radiology) is listed by Medicare at 5 hospitals in Boston, MA, Oak Bluffs, MA and Newton, MA and other places. NPI 1942421276. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about William Mehan, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Diagnostic RadiologyPrimary specialty
YesAccepts Medicare assignment
20Years since medical school (graduated 2006)
McGill University, Faculty Of MedicineMedical school
MaleGender (as listed)
Massachusetts General Physicians Organization IncGroup practice

Quick answers

Which hospitals does William Mehan work at?
Medicare's official clinician data lists William Mehan at 5 hospitals: Brigham and Women's Hospital, Martha's Vineyard Hospital Inc, Massachusetts General Hospital, Newton-Wellesley Hospital and North Shore Medical Center -. This is where the clinician works or has privileges; call the hospital to confirm.
Where does William Mehan see patients?
Medicare's clinician data lists 5 practice locations, including Danvers, MA, Chelsea, MA and Somerville, MA. Call before your visit to confirm the address.
What is William Mehan's specialty?
Medicare lists Diagnostic Radiology as the primary specialty.
Does William Mehan accept Medicare assignment?
Yes. Medicare's clinician data says William Mehan 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 Mehan?
(978) 882-6100, as listed in official Medicare / NPI Registry data.
What is William Mehan's NPI number?
1942421276. 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 Mehan works

Medicare's Facility Affiliation Data lists William Mehan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where William Mehan is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists William Mehan as a member of this group (CMS data updated 2026-10-02).

  • Massachusetts General Physicians Organization Inc3,558 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Massachusetts →

Other radiologists in Danvers

Clinicians with the same Medicare primary specialty in Danvers, MA — not a recommendation.

All radiologists in Danvers →

Clinician information

CredentialMD
Medical schoolMcGill University, Faculty Of Medicine
Graduation year2006
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1942421276
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians