Karen Wanersdorfer, DO
Surgery · Washington, DCNPI 1508270224
Payments from drug & device makers
What this record shows
Intuitive Surgical accounts for 60.5% of it on its own, with 8 other manufacturers making up the rest. 2025 is the largest year on record at $940, 2.3 times the $408 reported in 2019. That places this record below the midpoint for surgery clinicians in DC, where the typical reported total is $1,281.
Across 15 payments — averaging $100.98 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$917
- Stryker$141
- AstraZeneca$141
- BD$109
- Getinge USA Sales, LLC$86
- W. L. Gore & Associates, Inc.$56
- plus $66 from 3 others
What the payments were for
- Travel & lodging$83155%
- Food & beverage$68445%
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 | 5 | $917 |
| Stryker | 1 | $141 |
| AstraZeneca | 2 | $141 |
| BD | 1 | $109 |
| Getinge USA Sales, LLC | 1 | $86 |
| W. L. Gore & Associates, Inc. | 1 | $56 |
| Endo Pharmaceuticals Inc. | 2 | $40 |
| Acumed LLC | 1 | $15 |
| Prytime Medical Devices, 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.
- Da Vinci Surgical System$806
- SPY-PHI SYSTEM$141
- 1788$141
- 1688$141
- LOKELMA$125
- HemoSphere$109
How this compares
$1,515 in reported general payments places this provider in the 50th percentile of 117 surgery providers in District of Columbia.
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 surgery in Washington
- Jonathan JohnsonWashington$399K
- Christian ShultsWashington$258K
- Parag BhanotWashington$131K
- Frederick BrodyWashington$98K
- Babak SaraniWashington$73K
- Megan QuintanaWashington$49K
- Terrence FullumWashington$46K
- Jeffrey ShuppWashington$40K
- Adeel ShamimWashington$38K
- Bruce AbellWashington$36K
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.