Stephen Bartos, MD
Surgery · Waukesha, WINPI 1083601645
Payments from drug & device makers
What this record shows
The money is spread across several categories — education (51.7%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. Intuitive Surgical accounts for 66.6% of it on its own, with 15 other manufacturers making up the rest. Reporting peaked in 2023 at $3,154 and has fallen 84.9% since, to $475 in 2025.
Across 84 payments — averaging $69.23 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$4K
- Covidien LP$840
- Smith+Nephew$287
- Johnson & Johnson$183
- Davol Inc.$165
- Portola Pharmaceuticals, LLC$119
- plus $349 from 10 others
What the payments were for
- Travel & lodging$83314%
- Food & beverage$1,97534%
- Education$3,00852%
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 |
|---|---|---|
| Intuitive Surgical | 10 | $3,872 |
| Covidien LP | 8 | $840 |
| Smith+Nephew | 25 | $287 |
| Johnson & Johnson(2 entities) | 8 | $183 |
| Davol Inc. | 14 | $165 |
| Portola Pharmaceuticals, LLC | 6 | $119 |
| Lemaitre Vascular, Inc. | 2 | $91 |
| Baxter Healthcare | 1 | $78 |
| Conmed Corporation | 2 | $58 |
| Merck | 2 | $27 |
| TELA Bio, Inc. | 1 | $24 |
| Shire North American Group Inc | 1 | $17 |
| Mallinckrodt Enterprises LLC | 1 | $17 |
| Integra Lifesciences Corporation | 1 | $15 |
| CSL Behring | 1 | $12 |
| W. L. Gore & Associates, 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.
- DAVINCI XI$3,000
- Da Vinci Surgical System$529
- ProGrip$408
- Parietex$302
How this compares
$5,815 in reported general payments places this provider in the 70th percentile of 499 surgery 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| ClopidogrelClopidogrel Bisulfate | 51 | $605 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 23 | $61 |
Paid to pharmacies, not to this prescriber.
Other surgery in Waukesha
- Justin DuxWaukesha$39K
- Peter UllrichAppleton$18M
- Matthew GoldblattMilwaukee$594K
- Raymond GeorgenNeenah$325K
- Cynthia GeocarisGreen Bay$263K
- Rana HigginsMilwaukee$148K
- Mustafa BadruddujaKenosha$134K
- Geoffrey RoelantEau Claire$118K
- Peter JanuChilton$113K
- Manfred ChiangBrookfield$110K
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.