Mark Roschewski
Hematology · Washington, DCNPI 1912991951
Payments from drug & device makers
Across 37 payments — averaging $156,930 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$1.4M
- AbbVie$1.2M
- Pharmacyclics LLC, An Abbvie Company$1.2M
- Merck$948K
- Bayer$770K
- Adaptive Biotechnologies Corporation$238K
- plus $55K from 4 others
What the payments were for
- Food & beverage$356100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 | 4 | $1,350,314 |
| AbbVie | 5 | $1,244,026 |
| Pharmacyclics LLC, An Abbvie Company | 6 | $1,201,858 |
| Merck | 4 | $947,975 |
| Bayer | 4 | $769,945 |
| Adaptive Biotechnologies Corporation | 8 | $237,600 |
| Janssen Research & Development, LLC | 3 | $54,450 |
| Beigene USA, Inc. | 1 | $109 |
| Acerta Pharma LLC | 1 | $77 |
| Bristol Myers Squibb | 1 | $38 |
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.
- BRUKINSA$109
How this compares
Too few hematology providers in District of Columbiato place this figure against a meaningful peer group, so we don't.
Other hematology in Washington
- Gustavo RiveroWashington$87K
- Oswaldo CastroWashington$7K
- Donald KarcherWashington$1K
- Jennifer KanakryWashington$322
- Emily HowardWashington$148
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.