Sun Ho Ahn, MD
Vascular & Interventional Radiology · Warwick, RINPI 1457322299
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 15 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 7 manufacturers reported payments, led by Penumbra, Inc. at 46.9% of the total. Reporting peaked in 2019 at $555 and has fallen 71.9% since, to $156 in 2025.
Across 15 payments — averaging $84.25 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$592
- Inari Medical, Inc.$161
- Medtronic$145
- Terumo Medical Corporation$126
- Johnson & Johnson$111
- Boston Scientific$74
- plus $54 from 1 others
What the payments were for
- Food & beverage$1,264100%
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 |
|---|---|---|
| Penumbra, Inc. | 5 | $592 |
| Inari Medical, Inc. | 2 | $161 |
| Medtronic | 1 | $145 |
| Terumo Medical Corporation | 1 | $126 |
| Johnson & Johnson | 1 | $111 |
| Boston Scientific | 3 | $74 |
| Sirtex Medical Inc | 2 | $54 |
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.
- Penumbra System$376
- Abre$145
- RUBY Coil$137
- FlowTriever$137
- ClotTriever$137
- Azur CX Detachable$126
- Neuwave$111
How this compares
$1,264 in reported general payments places this provider in the 65th percentile of 26 vascular & interventional radiology providers in Rhode Island.
See all vascular & interventional radiology providers in Rhode Island →
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 vascular & interventional radiology in Warwick
- Ethan PrinceWarwick$4K
- Robert BinekWarwick$4K
- Jason IannuccilliWarwick$1K
- Landy PaolellaWarwick$477
- Gregory SoaresWarwick$64
- Joseph FarnamNewport$19K
- Timothy MurphyEast Providence$17K
- Dylan WolmanProvidence$16K
- Veral AminEast Providence$14K
- Agnieszka WitkowskaProvidence$4K
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.