Suthee Rapisuwon, MD
Hematology & Oncology · Washington, DCNPI 1275723199
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (39.4%), speaking fees and food and beverage — rather than concentrated in one kind of arrangement. 10 manufacturers reported payments, led by Immunocore Limited at 41.2% of the total. 2025 is the largest year on record at $5,336, more than ten times the $242 reported in 2019.
Across 18 payments — averaging $341.89 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Immunocore Limited$3K
- Eisai Inc.$2K
- Pfizer$321
- Clinigen, Inc.$302
- Regeneron$252
- Novartis$143
- plus $176 from 4 others
Across 139 payments — averaging $13,371 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$675K
- E.r. Squibb & Sons, L.L.C.$350K
- AstraZeneca$241K
- Seagen Inc.$238K
- Merck$142K
- Astrazeneca UK Limited$137K
- plus $76K from 3 others
What the payments were for
- Consulting fees$2,42539%
- Speaking & faculty fees$2,40039%
- Travel & lodging$731%
- Food & beverage$1,25620%
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 |
|---|---|---|
| Immunocore Limited | 3 | $2,535 |
| Eisai Inc. | 1 | $2,425 |
| Pfizer | 4 | $321 |
| Clinigen, Inc. | 2 | $302 |
| Regeneron | 2 | $252 |
| Novartis | 2 | $143 |
| Array Biopharma Inc | 1 | $97 |
| EMD Serono, Inc. | 1 | $32 |
| Gilead | 1 | $24 |
| Astellas Pharma US Inc | 1 | $23 |
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
$6,154 in reported general payments places this provider in the 55th percentile of 69 hematology & oncology providers in District of Columbia.
See all hematology & oncology providers in District of Columbia →
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 |
|---|---|---|
| XtandiEnzalutamide | 72 | $981,060 |
| ErleadaApalutamide | 33 | $529,982 |
| Abiraterone Acetate | 149 | $208,391 |
| Prednisone | 103 | $548 |
| Levothyroxine Sodium | 12 | $443 |
| Triamcinolone Acetonide | 12 | $73 |
Paid to pharmacies, not to this prescriber.
Companies that both paid and supply prescribed drugs
These companies both reported payments to this provider and make drugs the provider prescribed under Medicare Part D in 2024. For most specialties this overlap is expected — a cardiologist who is paid by a cardiology drugmaker also treats heart disease. It is shown so the reader can see it, not because it implies anything on its own.
| Company | Paid to this provider | Part D cost of their drugs |
|---|---|---|
| Astellas Pharma US IncXtandi | $23 | $981,06072 claims |
Reading this fairly. The Part D column is what drug plans and patients paid pharmacies — this provider received none of it, and it reflects how many patients they treat and what those drugs cost. Against peers, this provider's reported payments sit in the 55th percentile of 69 hematology & oncology providers in District of Columbia.
Other hematology & oncology in Washington
- Imadeddine TabbaraWashington$1.2M
- John MarshallWashington$525K
- Catherine BroomeWashington$504K
- Craig KesslerWashington$449K
- Benjamin WeinbergWashington$326K
- Claudine IsaacsWashington$241K
- Chul KimWashington$173K
- Christopher GallagherWashington$109K
- Neil ShahWashington$76K
- Vered StearnsWashington$54K
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.