William James, MD
NPI 1831571157 · Diagnostic Radiology Physician · Bethesda, MD
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William James, MD is a Diagnostic Radiology Physician provider in Bethesda, MD (NPI 1831571157).
Provider details
- NPI number
- 1831571157
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Military Health Care Provider171000000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-06-23
- Last updated
- 2025-05-13
- Certified
- 2025-05-13
Frequently asked questions
- What is William James's NPI number?
- William James's National Provider Identifier (NPI) is 1831571157, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William James's specialty?
- William James is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is William James located?
- William James's practice location on file with NPPES is 8901 Wisconsin Ave, Bethesda, MD 20889-5000.
- What is William James's phone number?
- The practice phone number listed in the NPPES registry for William James is (301) 295-8762.
- Does William James accept Medicare?
- William James is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William James's NPI active?
- Yes — William James's NPI (1831571157) is active in the NPPES registry as of the last update on 2025-05-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.