Mark Kochenderfer, MD
Hematology & Oncology · Roanoke, VANPI 1396720454
Payments from drug & device makers
Across 1,742 payments — averaging $4924.56 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$5.5M
- Pfizer$1M
- E.r. Squibb & Sons, L.L.C.$713K
- Gilead$247K
- Ipsen Bioscience Inc.$243K
- Taiho Oncology, Inc.$219K
- plus $670K from 21 others
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 |
|---|---|---|
| Merck | 769 | $5,478,602 |
| Pfizer | 234 | $1,007,646 |
| E.r. Squibb & Sons, L.L.C. | 43 | $713,092 |
| Gilead | 74 | $246,872 |
| Ipsen Bioscience Inc. | 50 | $243,192 |
| Taiho Oncology, Inc. | 127 | $219,373 |
| Incyte Corporation | 236 | $174,753 |
| AstraZeneca | 10 | $143,302 |
| Exelixis Inc. | 36 | $124,699 |
| Novocure Inc. | 75 | $103,491 |
| Seagen Inc. | 43 | $59,476 |
| Jazz Pharmaceuticals Inc. | 16 | $23,314 |
| AbbVie | 2 | $19,020 |
| Eli Lilly | 3 | $8,740 |
| Daiichi Sankyo Inc. | 5 | $8,161 |
| Genentech, Inc. | 3 | $3,278 |
| Immunomedics, Inc. | 1 | $1,250 |
| Tactile Systems Technology Inc | 3 | $90 |
| Puma Biotechnology, Inc. | 3 | $65 |
| Novartis | 1 | $33 |
| Bristol Myers Squibb | 2 | $30 |
| Beone Medicines USA, Inc. | 1 | $27 |
| Array Biopharma Inc | 1 | $20 |
| Rigel Pharmaceuticals, Inc. | 1 | $20 |
| Beigene USA, Inc. | 1 | $18 |
| Lilly USA, LLC | 1 | $14 |
| Teleflex LLC | 1 | $12 |
How this compares
$8,578,592 in reported general payments places this provider in the 95th percentile of 293 hematology & oncology providers in Virginia.
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 Roanoke
- Amanda Gillespie-TwardyRoanoke$12.2M
- Donald VileRoanoke$1.2M
- Craig PortellCharlottesville$12.9M
- Sekwon JangFairfax$11.8M
- Mark FlemingHampton$10M
- Mitul GandhiManassas$6.9M
- Michael DansoNorfolk$6.9M
- Jerome GoldschmidtChristiansburg$6.5M
- William IrvinMidlothian$4.3M
- Lakshminarayanan NandagopalFredericksburg$3.9M
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.