Aaron Chevinsky, MD
Surgical Oncology · Milwaukee, WINPI 1598755316
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (38.5%), consulting fees and education — rather than concentrated in one kind of arrangement. 5 manufacturers reported payments, led by BD at 54.8% of the total. 2025 is the largest year on record at $1,000, 7.1 times the $140 reported in 2019.
Across 7 payments — averaging $241.23 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- BD$925
- Solventum Corporation$350
- Leica Microsystems Inc.$253
- Covidien LP$140
- Merck$20
Across 13 payments — averaging $2788.09 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.
- Pfizer$24K
- Merck$8K
- Bristol Myers Squibb$4K
What the payments were for
- Consulting fees$48329%
- Speaking & faculty fees$65038%
- Food & beverage$20612%
- Education$35021%
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 |
|---|---|---|
| BD | 2 | $925 |
| Solventum Corporation | 1 | $350 |
| Leica Microsystems Inc. | 2 | $253 |
| Covidien LP | 1 | $140 |
| Merck | 1 | $20 |
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.
- Avitene Ultrafoam$650
- EEA$140
How this compares
$1,689 in reported general payments places this provider in the 65th percentile of 40 surgical oncology providers in Wisconsin.
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 surgical oncology in Milwaukee
- Wesley PapenfussMilwaukee$39K
- Callisia ClarkeMilwaukee$16K
- Geoffrey BelliniMilwaukee$12K
- Adrienne CobbMilwaukee$4K
- Douglas EvansMilwaukee$3K
- Anai KothariMilwaukee$3K
- Rebecca KimMilwaukee$3K
- Tracy WangMilwaukee$3K
- Areej SamiMilwaukee$2K
- Thomas GamblinMilwaukee$2K
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.