Marianna Koczywas
Medical Oncology · Duarte, CANPI 1639286677
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $20,525 of the $22,945 with a category attached, or 89.5%. AstraZeneca accounts for 74.3% of it on its own, with 4 other manufacturers making up the rest. Reporting peaked in 2019 at $22,756 and has fallen 99.7% since, to $59 in 2022.
Across 25 payments — averaging $917.80 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$17K
- Bristol Myers Squibb$6K
- Genentech USA, Inc.$72
- Amgen$59
- Pfizer$11
Across 361 payments — averaging $6213.01 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.
- Daiichi Sankyo Inc.$845K
- Amgen$383K
- AstraZeneca$314K
- Genentech, Inc.$232K
- Takeda Pharmaceuticals U.S.A., Inc.$181K
- Janssen Research & Development, LLC$119K
- plus $170K from 5 others
What the payments were for
- Speaking & faculty fees$20,52589%
- Travel & lodging$1,4446%
- Food & beverage$9654%
- Education$110%
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 |
|---|---|---|
| AstraZeneca | 16 | $17,038 |
| Bristol Myers Squibb | 5 | $5,765 |
| Genentech USA, Inc. | 1 | $72 |
| Amgen | 2 | $59 |
| Pfizer | 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.
How this compares
$22,945 in reported general payments places this provider in the 70th percentile of 379 medical oncology providers in California.
Other medical oncology in Duarte
- Daneng LiDuarte$467K
- Howard WestDuarte$426K
- Christine LovlyDuarte$362K
- Marwan FakihDuarte$203K
- Erminia MassarelliDuarte$176K
- Ravi SalgiaDuarte$142K
- Tanya DorffDuarte$136K
- Karen ReckampDuarte$132K
- Cy SteinDuarte$122K
- Joseph ChaoDuarte$110K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.