Mark Henderson, MD
Radiation Oncology · Columbus, INNPI 1841370707
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 30 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 23 manufacturers reported payments, led by Sirtex Medical Inc at 25.0% of the total. Reporting peaked in 2019 at $411 and has fallen 71.3% since, to $118 in 2025.
Across 30 payments — averaging $25.22 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sirtex Medical Inc$189
- Genentech USA, Inc.$114
- AstraZeneca$47
- Novartis$38
- Eisai Inc.$34
- Merck$27
- plus $307 from 17 others
What the payments were for
- Food & beverage$757100%
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 |
|---|---|---|
| Sirtex Medical Inc | 1 | $189 |
| Genentech USA, Inc. | 2 | $114 |
| AstraZeneca | 3 | $47 |
| Novartis | 2 | $38 |
| Eisai Inc. | 2 | $34 |
| Merck | 1 | $27 |
| Adaptive Biotechnologies Corporation | 1 | $27 |
| E.r. Squibb & Sons, L.L.C. | 1 | $24 |
| Johnson & Johnson | 2 | $23 |
| BD | 1 | $23 |
| Clovis Oncology, Inc. | 2 | $22 |
| Boehringer Ingelheim | 1 | $21 |
| Siemens Medical Solutions USA, Inc. | 1 | $21 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $19 |
| Beone Medicines USA, Inc. | 1 | $18 |
| Incyte Corporation | 1 | $18 |
| Daiichi Sankyo Inc. | 1 | $15 |
| Lilly USA, LLC | 1 | $15 |
| Karyopharm Therapeutics Inc. | 1 | $13 |
| Coherus Oncology, Inc. | 1 | $13 |
| Amgen | 1 | $13 |
| Foundation Medicine, Inc. | 1 | $12 |
| Pharmacyclics LLC, An Abbvie Company | 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
$757 in reported general payments places this provider in the 55th percentile of 116 radiation oncology providers in Indiana.
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 |
|---|---|---|
| OrgovyxRelugolix | 13 | $35,538 |
| Tamsulosin Hcl | 47 | $643 |
| Pentoxifylline | 18 | $363 |
| Mometasone Furoate | 24 | $358 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 22 | $349 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 21 | $212 |
| Dexamethasone | 14 | $208 |
| Bicalutamide | 16 | $187 |
| Pantoprazole Sodium | 13 | $52 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Columbus
- Junaid PashaColumbus$902
- Brian ChangFort Wayne$13K
- Michael EatonIndianapolis$11K
- William PorterMadison$8K
- Binh TranMishawaka$7K
- Gordon WatsonIndianapolis$6K
- John CoxIndianapolis$5K
- Houman VaghefiGoshen$5K
- Peter GarrettIndianapolis$5K
- Garrett JensenIndianapolis$4K
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.