William Gregoire, M.D.
NPI 1154343184 · Diagnostic Radiology Physician · Baton Rouge, LA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Gregoire, M.D. is a Diagnostic Radiology Physician provider in Baton Rouge, LA (NPI 1154343184).
Provider details
- NPI number
- 1154343184
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 11735R (LA)
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
3,884 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 | 487 | $8 |
| Ct Scan Head Or Brain Without Contrast70450 | 264 | $37 |
| X-Ray of Chest, 2 Views71046 | 228 | $10 |
| Mri Scan of Brain Without Contrast70551 | 190 | $90 |
| X-Ray of Chest, 2 Views71046 | 177 | $24 |
| Mri Scan of Lower Spinal Canal Without Contrast72148 | 166 | $112 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Gregoire's NPI number?
- William Gregoire's National Provider Identifier (NPI) is 1154343184, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Gregoire's specialty?
- William Gregoire is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Gregoire located?
- William Gregoire's practice location on file with NPPES is 5422 Dijon Dr, Baton Rouge, LA 70808-4315.
- What is William Gregoire's phone number?
- The practice phone number listed in the NPPES registry for William Gregoire is (225) 769-9337.
- Does William Gregoire accept Medicare?
- William Gregoire is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Gregoire's NPI active?
- Yes — William Gregoire's NPI (1154343184) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.