Doctor profile · Federal record
Dr. William Gregoire, M.D.
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Baton Rouge, LA
- NPI 1154343184
- Accepts Medicare
- 35 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
5422 Dijon Dr
Baton Rouge, LA 708084315
(225) 769-9337 - Mailing address
-
Po Box 14530
Baton Rouge, LA 708984530
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- Louisiana #11735R
- Medicaid
- LA #1678490
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1154343184. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
8,714
Distinct HCPCS
10
Medicare allowed
$145,510
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 4,325 | 51 | $0 | |
A9579 |
Injection, gadolinium-based magnetic resonance contrast agent, not otherwise specified (nos), per ml | 1,175 | 74 | $2 | |
71045 |
X-ray of chest, 1 view | 636 | 531 | $9 | |
71046 |
X-ray of chest, 2 views | 268 | 258 | $10 | |
70450 |
Ct scan head or brain without contrast | 249 | 242 | $39 | |
71046 |
X-ray of chest, 2 views | 149 | 149 | $25 | |
72148 |
Mri scan of lower spinal canal without contrast | 127 | 127 | $68 | |
70551 |
Mri scan of brain without contrast | 110 | 107 | $79 | |
70551 |
Mri scan of brain without contrast | 97 | 97 | $68 | |
72148 |
Mri scan of lower spinal canal without contrast | 94 | 93 | $72 |
In context: peer comparison
Among 27 peers in Baton Rouge Diagnostic Radiology Physician, average services per provider: 96. This provider delivers 91× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. William Gregoire's medical specialty?
Dr. William Gregoire practices Diagnostic Radiology Physician in Baton Rouge, LA.
Where does Dr. William Gregoire practice?
Dr. William Gregoire practices at 5422 Dijon Dr, Baton Rouge, LA 708084315. Office phone: 2257699337.
What is Dr. William Gregoire's NPI?
Dr. William Gregoire's National Provider Identifier (NPI) is 1154343184, issued by NPPES.
Does Dr. William Gregoire accept Medicare assignment?
Yes. Dr. William Gregoire accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Gregoire commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Injection, gadolinium-based magnetic resonance contrast agent, not otherwise specified (nos), per ml (HCPCS A9579); X-ray of chest, 1 view (HCPCS 71045). Source: CMS Medicare Physician & Other Practitioners file.