Physician profile
Mark Sittig
NPI 1275951519
$2,405.35
in general payments reported to CMS, 2019-2025
16 companies · $499 in 2025
The $499 reported for 2025 was more than what 75% of Radiation Oncology providers received nationally (typical 2025 total: $172).
Payments by year
General payments by program year, as reported to CMS.
General payments by year: 2021: $222 · 2022: $590 · 2023: $383 · 2024: $711 · 2025: $499.
What the payments were for
Nature of payment as categorized by the reporting companies: meals, consulting, travel, and so on.
Food and Beverage: $1,594.
View as a table
| Payment type | Amount (2023-2025) |
|---|---|
| Food and Beverage | $1,593.61 |
Payment-type detail covers 2023-2025; earlier years are included in totals but not broken out here.
Who reported paying
General payments only, as reported to CMS. Product names cover 2023-2025.
| Company | General payments | Years | Top products |
|---|---|---|---|
| Janssen Scientific Affairs, LLC | $566.01 | 2023-2025 | Erleada, Pipeline, Akeega |
| Astrazeneca Pharmaceuticals Lp | $270.97 | 2023-2024 | Lynparza |
| Bayer Healthcare Pharmaceuticals INC. | $186.80 | 2022-2025 | |
| Bioprotect Medical, INC. | $166.52 | 2025 | Bioprotect Balloon Implant System |
| Palette Life Sciences, INC. | $136.01 | 2022 | |
| Boston Scientific Corporation | $133.92 | 2022 | |
| Exelixis INC. | $130.00 | 2023 | Cabometyx |
| Monteris Medical Corporation | $128.04 | 2024 | Neuroblate |
| Brainlab, INC. | $125.42 | 2022 | |
| Merck Sharp & Dohme LLC | $125.02 | 2025 | Keytruda |
| Ferring Pharmaceuticals INC. | $121.30 | 2024 | Adstiladrin |
| Regeneron Healthcare Solutions, INC. | $117.83 | 2021 | |
| Genentech USA, INC. | $103.97 | 2021 | |
| Novartis Pharmaceuticals Corporation | $47.09 | 2025 | |
| Reflexion Medical, INC. | $25.00 | 2022 |
Show all 16 companies
| Company | General payments | Years | Top products |
|---|---|---|---|
| Ambu INC. | $21.45 | 2024 |
Drugs and devices associated with these payments
CMS records which products a payment was associated with, not how the money was allocated. Association is not allocation: one payment can be associated with several products, and a product listing does not mean the payment was made because of that product. Product detail covers 2023-2025.
If you want to bring it up
Most clinicians are glad to talk about this. A respectful way in:
- "I saw Mark Sittig listed in the CMS Open Payments database. Can you tell me about your work with those companies?"
- "Is there a generic or alternative to this medication, and would it work as well for me?"
- "What made you choose this particular treatment for my situation?"
These are normal questions. A good clinician will welcome them.
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Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.