William Mask, M.D.
NPI 1215030507 · Diagnostic Radiology Physician · Durham, NC
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Mask, M.D. is a Diagnostic Radiology Physician provider in Durham, NC (NPI 1215030507).
Provider details
- NPI number
- 1215030507
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A48451 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
1,891 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) |
|---|---|---|
| X-Ray of Chest, 1 View71045 | 774 | $8 |
| Ultrasound Study of One Arm Or Leg Veins With Compression and Maneuvers93971 | 177 | $19 |
| Ct Scan Head Or Brain Without Contrast70450 | 130 | $37 |
| Ultrasound Study of Arm Or Leg Veins With Compression and Maneuvers93970 | 86 | $29 |
| Ct Scan of Chest Without Contrast71250 | 66 | $48 |
| X-Ray of Chest, 2 Views71046 | 61 | $10 |
| Ultrasound of Leg Arteries Or Artery Grafts |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-05
- Last updated
- 2023-02-07
- Certified
- 2023-01-18
Frequently asked questions
- What is William Mask's NPI number?
- William Mask's National Provider Identifier (NPI) is 1215030507, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mask's specialty?
- William Mask is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Mask located?
- William Mask's practice location on file with NPPES is 5921 Beech Bluff Ln, Durham, NC 27705-8115.
- What is William Mask's phone number?
- The practice phone number listed in the NPPES registry for William Mask is (504) 908-0337.
- Does William Mask accept Medicare?
- William Mask is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Mask's NPI active?
- Yes — William Mask's NPI (1215030507) is active in the NPPES registry as of the last update on 2023-02-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.