Edgar St Amour, MD
Vascular & Interventional Radiology · Little Rock, ARNPI 1891051611
Payments from drug & device makers
Across 127 payments — averaging $2525.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Instylla, Inc.$298K
- Sirtex Medical Inc$7K
- Angiodynamics, Inc.$6K
- Trisalus Life Sciences, Inc.$6K
- Penumbra, Inc.$2K
- Inari Medical, Inc.$224
- plus $923 from 11 others
What the payments were for
- Consulting fees$4,60016%
- Speaking & faculty fees$8,27329%
- Travel & lodging$2,83410%
- Food & beverage$6,37123%
- Other$6,16722%
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 |
|---|---|---|
| Instylla, Inc. | 24 | $298,036 |
| Sirtex Medical Inc | 48 | $7,313 |
| Angiodynamics, Inc. | 1 | $6,167 |
| Trisalus Life Sciences, Inc. | 29 | $5,558 |
| Penumbra, Inc. | 6 | $2,495 |
| Inari Medical, Inc. | 2 | $224 |
| GE HealthCare | 2 | $200 |
| Boston Scientific | 3 | $171 |
| Balt USA, LLC | 1 | $168 |
| Progenics Pharmaceuticals, Inc. | 1 | $106 |
| Stryker | 1 | $79 |
| Novartis | 2 | $50 |
| Johnson & Johnson | 2 | $46 |
| Siemens Medical Solutions USA, Inc. | 2 | $44 |
| Merge Healthcare Incorporated | 1 | $24 |
| Medtronic | 1 | $20 |
| Bayer | 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.
- SIR-Spheres Microspheres$6,374
- Nanoknife$6,167
- Instylla Delivery Kit$5,308
- TRINAV INFUSION SYSTEM$5,106
- INSTYLLA MICROCATHETER$4,719
- Indigo$4,101
- EMBRACE HYDROGEL EMBOLIC SYSTEM (HES)$589
- INSTYLLA MICROCATHETER 1.2$589
- Prestige Coil System$168
- CT THROMBECTOMY SYSTEM KIT$159
- FLOWTRIEVER CATHETER, S$159
- GENERAL VASCULAR INTERVENTION$143
- PYLARIFY$106
How this compares
$320,717 in reported general payments places this provider in the 95th percentile of 41 vascular & interventional radiology providers in Arkansas.
See all vascular & interventional radiology providers in Arkansas →
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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Methylprednisolone | 21 | $152 |
| Pantoprazole Sodium | 18 | $121 |
| Ciprofloxacin Hcl | 21 | $53 |
Paid to pharmacies, not to this prescriber.
Other vascular & interventional radiology in Little Rock
- Gary AllenLittle Rock$50K
- David HeisterLittle Rock$24K
- David HaysLittle Rock$22K
- Blake JacksLittle Rock$13K
- Whitney GoodwinLittle Rock$10K
- Amy BezoldLittle Rock$6K
- Kenneth RobbinsLittle Rock$5K
- Abhishek ThummalakuntaLittle Rock$5K
- Michael LongLittle Rock$4K
- James MeekLittle Rock$3K
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.