William Stewart, MD
NPI 1154819357 · Diagnostic Radiology Physician · Oxford, MS
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Stewart, MD is a Diagnostic Radiology Physician provider in Oxford, MS (NPI 1154819357).
Provider details
- NPI number
- 1154819357
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 33098 (MS)
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
8 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
2,793 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 | 731 | $8 |
| Ct Scan of Abdomen and Pelvis With Contrast74177 | 323 | $83 |
| Ct Scan Head Or Brain Without Contrast70450 | 157 | $38 |
| Ct Scan of Chest With Contrast71260 | 136 | $52 |
| Ct Scan of Abdomen and Pelvis Without Contrast74176 | 116 | $80 |
| Ct Scan of Chest Without Contrast71250 | 58 | $49 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-24
- Last updated
- 2026-04-10
- Certified
- 2026-04-10
Frequently asked questions
- What is William Stewart's NPI number?
- William Stewart's National Provider Identifier (NPI) is 1154819357, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Stewart's specialty?
- William Stewart is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Stewart located?
- William Stewart's practice location on file with NPPES is 1100 Belk Blvd, Oxford, MS 38655-5242.
- What is William Stewart's phone number?
- The practice phone number listed in the NPPES registry for William Stewart is (662) 513-1609.
- Does William Stewart accept Medicare?
- William Stewart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Stewart's NPI active?
- Yes — William Stewart's NPI (1154819357) is active in the NPPES registry as of the last update on 2026-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.