John Grezaffi, MD
Diagnostic Radiology · Baton Rouge, LANPI 1659575173
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $8,320 of the $12,206 with a category attached, or 68.2%. 14 manufacturers reported payments, led by Boston Scientific at 36.5% of the total. 2025 is the largest year on record at $6,816, 9.2 times the $741 reported in 2019. Among diagnostic radiology clinicians in LA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 138 payments — averaging $88.45 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Boston Scientific$4K
- Terumo Medical Corporation$2K
- AbbVie$2K
- Inari Medical, Inc.$1K
- Sirtex Medical Inc$1K
- Trisalus Life Sciences, Inc.$320
- plus $687 from 8 others
What the payments were for
- Consulting fees$1,80015%
- Travel & lodging$2,08617%
- Food & beverage$8,32068%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Boston Scientific | 55 | $4,456 |
| Terumo Medical Corporation | 24 | $2,291 |
| AbbVie | 1 | $1,800 |
| Inari Medical, Inc. | 11 | $1,345 |
| Sirtex Medical Inc | 22 | $1,306 |
| Trisalus Life Sciences, Inc. | 10 | $320 |
| Imperative Care, Inc | 3 | $273 |
| Medtronic(2 entities) | 5 | $234 |
| Angiodynamics, Inc. | 2 | $61 |
| Siemens Medical Solutions USA, Inc. | 1 | $47 |
| Adaptive Biotechnologies Corporation | 1 | $22 |
| Johnson & Johnson | 1 | $21 |
| EKOS Corporation | 1 | $16 |
| Globus Medical | 1 | $14 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- TheraSphere Y90 Glass Microspheres 10 GBq$2,406
- EMRELIS$1,800
- GLIDESHEATH SLENDER$1,189
- FLOWTRIEVER CATHETER, S$979
- CT THROMBECTOMY SYSTEM KIT$979
- SIR-Spheres Microspheres$627
- TheraSphere360_PI$307
- EMBOLD Fibered$270
- Azur CX Detachable$268
- FlowTriever$268
- ClotTriever$268
- TheraSphere Administration Set$261
- SYMPHONY CATHETER$258
- HydroPearl$221
- LAVA LES (Liquid Embolic System)$156
- SYNCHROMEDII$138
- OBSIDIO$136
- TRUSELECT$124
- TRINAV INFUSION SYSTEM$121
- INTERLOCK$114
How this compares
$12,206 in reported general payments places this provider in the 95th percentile of 418 diagnostic radiology providers in Louisiana.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Other diagnostic radiology in Baton Rouge
- James RuizBaton Rouge$105K
- David AllevaBaton Rouge$15K
- Dane MackeyBaton Rouge$6K
- Ryan MajoriaBaton Rouge$5K
- John BarrazaBaton Rouge$3K
- Dwayne AndersonBaton Rouge$2K
- Devan MoodyBaton Rouge$1K
- Scott SchuberBaton Rouge$983
- James GrudenNew Orleans$171K
- Ankit PansaraNew Orleans$28K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.