Doctor profile · Federal record
Dr. John Grezaffi, MD
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Baton Rouge, LA
- NPI 1659575173
- Accepts Medicare
- 21 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
7887 Picardy Ave
Baton Rouge, LA 708093534
(225) 763-4341
Credentials & registration
- NPI registered
- June 2007 — 19 yrs on file
- Profile last updated
- March 21, 2017
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- Louisiana #204408
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659575173. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,726
Distinct HCPCS
10
Medicare allowed
$94,219
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 3,775 | 45 | $0 | |
71045 |
X-ray of chest, 1 view | 317 | 276 | $9 | |
70450 |
Ct scan head or brain without contrast | 239 | 237 | $39 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 181 | 143 | $12 | |
71046 |
X-ray of chest, 2 views | 152 | 150 | $27 | |
77012 |
Review by radiologist of ct guidance for needle placement | 104 | 95 | $69 | |
71046 |
X-ray of chest, 2 views | 100 | 96 | $10 | |
74177 |
Ct scan of abdomen and pelvis with contrast | 93 | 85 | $85 | |
74176 |
Ct scan of abdomen and pelvis without contrast | 73 | 72 | $80 | |
72125 |
Ct scan of upper spine without contrast | 55 | 54 | $46 |
In context: peer comparison
Among 27 peers in Baton Rouge Diagnostic Radiology Physician, average services per provider: 96. This provider delivers 60× the peer median.Open Payments
Industry payments received
All-time total
$720
Transactions
14
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boston Scientific Corporation | 9 | $344.82 | |
| Sirtex Medical INC | 2 | $211.56 | |
| Inari Medical, INC. | 1 | $128.17 | |
| TriSalus Life Sciences, INC. | 1 | $21.90 | |
| Globus Medical, INC. | 1 | $13.80 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. John Grezaffi's medical specialty?
Dr. John Grezaffi practices Diagnostic Radiology Physician in Baton Rouge, LA.
Where does Dr. John Grezaffi practice?
Dr. John Grezaffi practices at 7887 Picardy Ave, Baton Rouge, LA 708093534. Office phone: 2257634341.
What is Dr. John Grezaffi's NPI?
Dr. John Grezaffi's National Provider Identifier (NPI) is 1659575173, issued by NPPES.
Does Dr. John Grezaffi accept Medicare assignment?
Yes. Dr. John Grezaffi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Grezaffi commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); X-ray of chest, 1 view (HCPCS 71045); Ct scan head or brain without contrast (HCPCS 70450). Source: CMS Medicare Physician & Other Practitioners file.