Rehan Riaz, MD
Vascular & Interventional Radiology · Chicago, ILNPI 1922395524
Payments from drug & device makers
What this record shows
9 manufacturers reported payments, led by Penumbra, Inc. at 50.5% of the total. Reporting peaked in 2024 at $2,818 and has fallen 82.9% since, to $481 in 2025.
Across 59 payments — averaging $104.17 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$3K
- Stryker$2K
- Cook Medical LLC$327
- Inari Medical, Inc.$262
- Bard Peripheral Vascular, Inc.$147
- Thrombolex, Inc.$114
- plus $90 from 3 others
Across 2 payments — averaging $5740.00 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Penumbra, Inc.$11K
What the payments were for
- Travel & lodging$2,63343%
- Food & beverage$3,51457%
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. | 18 | $3,105 |
| Stryker | 16 | $2,100 |
| Cook Medical LLC | 11 | $327 |
| Inari Medical, Inc. | 9 | $262 |
| Bard Peripheral Vascular, Inc. | 1 | $147 |
| Thrombolex, Inc. | 1 | $114 |
| Boston Scientific | 1 | $45 |
| Medtronic | 1 | $29 |
| W. L. Gore & Associates, Inc. | 1 | $17 |
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.
- Indigo System$2,682
- SPINEJACK$1,656
- OPTABLATE$284
- Rotarex$147
- POD$126
- Bashir Endovascular Catheter$114
How this compares
$6,146 in reported general payments places this provider in the 65th percentile of 197 vascular & interventional radiology providers in Illinois.
See all vascular & interventional radiology providers in Illinois →
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 Chicago
- Riad SalemChicago$2.3M
- Kush DesaiChicago$1M
- Robert LewandowskiChicago$954K
- Christopher MolvarChicago$850K
- Sreekumar MadasseryChicago$459K
- Bulent ArslanChicago$300K
- Sameer AnsariChicago$161K
- Ahsun RiazChicago$127K
- Ramona GuptaChicago$72K
- Scott ResnickChicago$38K
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.