Fadi Dahdaleh, MD
Surgical Oncology · Chicago, ILNPI 1235424656
Payments from drug & device makers
What this record shows
This record is dominated by education: $163,800 of the $197,730 with a category attached, or 82.8%. Intuitive Surgical accounts for 98.7% of it on its own, with 15 other manufacturers making up the rest. Reporting peaked in 2022 at $82,187 and has fallen 79.4% since, to $16,904 in 2025. Among surgical oncology clinicians in IL with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 202 payments — averaging $978.86 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Intuitive Surgical$195K
- Angiodynamics, Inc.$686
- Medical Device Business Services, Inc.$623
- Johnson & Johnson$541
- Conmed Corporation$179
- Baxter Healthcare$105
- plus $372 from 10 others
What the payments were for
- Speaking & faculty fees$18,5009%
- Travel & lodging$6,0983%
- Food & beverage$9,3325%
- Education$163,80083%
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 | 165 | $195,224 |
| Angiodynamics, Inc. | 3 | $686 |
| Medical Device Business Services, Inc. | 5 | $623 |
| Johnson & Johnson | 12 | $541 |
| Conmed Corporation | 4 | $179 |
| Baxter Healthcare | 1 | $105 |
| Intera Oncology, Inc | 1 | $85 |
| Davol Inc. | 2 | $59 |
| Medtronic | 2 | $58 |
| Coopersurgical, Inc. | 1 | $38 |
| Novartis | 1 | $35 |
| Elucent Medical | 1 | $25 |
| Smith+Nephew | 1 | $23 |
| Misonix Inc | 1 | $22 |
| Telix Pharmaceuticals | 1 | $14 |
| Merck | 1 | $13 |
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$177,137
- DAVINCI XI$16,500
- ECHELON FLEX Stapler$685
- ENSEAL Product Family$574
- CERTUS 140 MICROWAVE ABLATION SYSTEM$574
- VISTASEAL$112
- PerClot$105
How this compares
$197,730 in reported general payments places this provider in the 95th percentile of 55 surgical oncology 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Gavilyte-GPeg3350/Sod Sulf,bicarb,cl/Kcl | 19 | $291 |
| Neomycin Sulfate | 32 | $173 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 26 | $111 |
| Metronidazole | 32 | $60 |
| Oxycodone Hcl | 16 | $52 |
Paid to pharmacies, not to this prescriber.
Other surgical oncology in Chicago
- Nora HansenChicago$41K
- Jeffrey WayneChicago$38K
- David BentremChicago$34K
- Mecker MollerChicago$25K
- Shishir MaithelChicago$16K
- Aslam EjazChicago$16K
- Ryan MerkowChicago$16K
- Xavier KeutgenChicago$13K
- Alejandra Perez TamayoChicago$6K
- Juliet LumatiChicago$6K
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.