William Masch, M.D.
NPI 1366767303 · Diagnostic Radiology Physician · Ypsilanti, MI
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Masch, M.D. is a Diagnostic Radiology Physician provider in Ypsilanti, MI (NPI 1366767303).
Provider details
- NPI number
- 1366767303
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- V4047 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,957 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 | 270 | $8 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 222 | $84 |
| Mri Scan of Abdomen Before and After Contrast74183 | 125 | $102 |
| X-Ray of Chest, 2 Views71046 | 115 | $10 |
| Ct Scan of Chest Without Contrast71250 | 93 | $50 |
| X-Ray of Chest, 2 Views71046 | 89 | $10 |
| Ct Scan of Blood Vessels of Chest With Contrast |
Practice location
Mailing address
Additional practice locations (2)
- 1504 Taub LoopHouston, TX 77030-1608Phone: (713) 873-8890
- 7200 Cambridge StHouston, TX 77030-4202Phone: (713) 798-1000
Registry dates
- Enumerated
- 2010-04-01
- Last updated
- 2025-09-18
- Certified
- 2025-09-18
Frequently asked questions
- What is William Masch's NPI number?
- William Masch's National Provider Identifier (NPI) is 1366767303, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Masch's specialty?
- William Masch is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Masch located?
- William Masch's practice location on file with NPPES is 5333 Mcauley Dr, Ypsilanti, MI 48197-1014.
- What is William Masch's phone number?
- The practice phone number listed in the NPPES registry for William Masch is (734) 712-8350.
- Does William Masch accept Medicare?
- William Masch is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Masch's NPI active?
- Yes — William Masch's NPI (1366767303) is active in the NPPES registry as of the last update on 2025-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.