Christos Kyriakopoulos, MD
Hematology & Oncology · Madison, WINPI 1336304211
Payments from drug & device makers
Across 217 payments — averaging $79,032 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sanofi US Services Inc.$9.5M
- Merck$5.6M
- Sanofi$822K
- Astrazeneca UK Limited$387K
- Gilead$279K
- Pfizer$157K
- plus $429K from 12 others
Across 4 payments — averaging $5137.50 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$21K
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 |
|---|---|---|
| Sanofi US Services Inc. | 7 | $9,487,474 |
| Merck | 13 | $5,587,868 |
| Sanofi | 18 | $822,147 |
| Astrazeneca UK Limited | 6 | $387,401 |
| Gilead | 13 | $278,534 |
| Pfizer | 16 | $157,130 |
| Medivation LLC. | 2 | $138,583 |
| Ares Trading SA | 44 | $100,540 |
| Incyte Corporation | 61 | $63,630 |
| E.r. Squibb & Sons, L.L.C. | 4 | $59,803 |
| Exelixis Inc. | 21 | $56,776 |
| Taiho Oncology, Inc. | 2 | $3,298 |
| AVEO Pharmaceuticals, Inc. | 2 | $2,935 |
| Janssen Global Services, LLC | 1 | $2,700 |
| Janssen Scientific Affairs, LLC | 1 | $880 |
| EMD Serono, Inc. | 4 | $200 |
| Eisai Inc. | 1 | $30 |
| Abbott | 1 | $14 |
How this compares
$17,149,944 in reported general payments places this provider in the 95th percentile of 248 hematology & 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 hematology & oncology in Madison
- Ryan PorterMadison$6.1M
- Vaishalee KenkreMadison$3.9M
- Hamid EmamekhooMadison$2.6M
- Jeremy KratzMadison$1.6M
- Timothy SchmidtMadison$1.2M
- Vincent MaMadison$1.2M
- Saurabh RajguruMadison$944K
- Sam LubnerMadison$851K
- Elisavet PaplomataMadison$521K
- Sima Ehsani ChimehMadison$477K
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.