Marion Oliver
Neurology · Park Ridge, ILNPI 1497106439
Payments from drug & device makers
What this record shows
This record is dominated by food and beverage: $7,349 of the $10,825 with a category attached, or 67.9%. 22 manufacturers reported payments, led by Stryker at 28.4% of the total. Reporting peaked in 2022 at $3,739 and has fallen 54.7% since, to $1,695 in 2025.
Across 121 payments — averaging $89.46 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Stryker$3K
- Microvention, Inc.$2K
- Penumbra, Inc.$2K
- Imperative Care, Inc$938
- AstraZeneca$582
- Medtronic$563
- plus $2K from 16 others
What the payments were for
- Travel & lodging$3,47632%
- Food & beverage$7,34968%
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 |
|---|---|---|
| Stryker | 44 | $3,070 |
| Microvention, Inc. | 11 | $2,022 |
| Penumbra, Inc. | 9 | $1,653 |
| Imperative Care, Inc | 11 | $938 |
| AstraZeneca(2 entities) | 6 | $582 |
| Medtronic(2 entities) | 11 | $563 |
| Johnson & Johnson | 4 | $387 |
| Balt USA, LLC | 5 | $348 |
| Lundbeck LLC | 2 | $200 |
| Qapel Medical Inc | 2 | $190 |
| Chiesi USA, Inc. | 2 | $178 |
| Genentech USA, Inc. | 1 | $136 |
| Route 92 Medical, Inc. | 1 | $134 |
| Teva Pharmaceuticals USA, Inc. | 1 | $119 |
| AbbVie(2 entities) | 2 | $102 |
| Biogen | 2 | $90 |
| Genentech, Inc. | 2 | $44 |
| Cordis US CORP. | 1 | $16 |
| Acorda Therapeutics, Inc | 1 | $15 |
| SK Life Science, Inc. | 1 | $15 |
| Kyowa Kirin, Inc. | 1 | $13 |
| Aquestive Therapeutics, Inc. | 1 | $11 |
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.
- STENT$1,615
- Penumbra System$1,438
- WEB Aneurysm Embolization System$1,072
- EVOLVE$967
- ZOOM 88-T LARGE DISTAL PLATFORM$747
- SURPASS EVOLVE$532
- Optima Coil System$309
- AXS VECTA 71$273
- Embotrap$215
- AXS INFINITY LS$153
- TARGET$146
- AXIUM PRIMETM$145
- Pipeline$141
- CEREPAK UNIFORM$136
- Activase$136
- 8F Base Camp Sheath System$134
- ULTOMIRIS$127
- SOLIRIS$121
- CLEVIPREX$120
- AJOVY$119
How this compares
$10,825 in reported general payments places this provider in the 80th percentile of 790 neurology 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 neurology in Park Ridge
- Michael RezakPark Ridge$184K
- Augusto MiravalleChicago$1.4M
- Lori GuytonHerrin$1.1M
- Daniel WynnNorthbrook$812K
- Arthur ItkinPalos Heights$808K
- Andrew GordonLake Barrington$765K
- Martha McGrawWinfield$625K
- Reuben ValenzuelaPeoria$590K
- Adil JavedChicago$584K
- Tyler KaplanMaywood$549K
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.