William Mehan, M.D.
NPI 1942421276 · Diagnostic Radiology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Mehan, M.D. is a Diagnostic Radiology Physician provider in Boston, MA (NPI 1942421276).
Provider details
- NPI number
- 1942421276
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 245931 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,580 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 281 | $41 |
| Mri Scan of Brain Before and After Contrast70553 | 158 | $150 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 137 | $88 |
| Mri Scan of Brain Without Contrast70551 | 101 | $72 |
| Ct Scan of Blood Vessels of Head With Contrast70496 | 96 | $85 |
| Mri Scan of Brain Before and After Contrast70553 | 95 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-02
- Last updated
- 2013-07-16
Frequently asked questions
- What is William Mehan's NPI number?
- William Mehan's National Provider Identifier (NPI) is 1942421276, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mehan's specialty?
- William Mehan is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Mehan located?
- William Mehan's practice location on file with NPPES is 800 Washington Street, Boston, MA 02111.
- What is William Mehan's phone number?
- The practice phone number listed in the NPPES registry for William Mehan is (617) 636-5000.
- Does William Mehan accept Medicare?
- William Mehan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Mehan's NPI active?
- Yes — William Mehan's NPI (1942421276) is active in the NPPES registry as of the last update on 2013-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.