Michael Christensen, MD
Radiation Oncology · Franklin, WINPI 1497911275
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $3,150 of the $3,471 with a category attached, or 90.7%. AstraZeneca accounts for 91.4% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2020 at $3,150 and has fallen 99.4% since, to $19 in 2022. Among radiation oncology clinicians in WI with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 10 payments — averaging $347.14 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AstraZeneca$3K
- Daiichi Sankyo Inc.$125
- AbbVie$99
- Boston Scientific$19
- Array Biopharma Inc$16
- Jazz Pharmaceuticals Inc.$14
- plus $25 from 2 others
What the payments were for
- Consulting fees$3,15091%
- Food & beverage$3099%
- Education$130%
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 | 3 | $3,174 |
| Daiichi Sankyo Inc. | 1 | $125 |
| AbbVie | 1 | $99 |
| Boston Scientific | 1 | $19 |
| Array Biopharma Inc | 1 | $16 |
| Jazz Pharmaceuticals Inc. | 1 | $14 |
| Johnson & Johnson | 1 | $14 |
| Lilly USA, LLC | 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.
- IMFINZI$3,150
- INJECTAFER$125
How this compares
$3,471 in reported general payments places this provider in the 90th percentile of 131 radiation oncology providers in Wisconsin.
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 |
|---|---|---|
| Tamsulosin Hcl | 56 | $374 |
| Oxybutynin Chloride ErOxybutynin Chloride | 16 | $273 |
Paid to pharmacies, not to this prescriber.
Other radiation oncology in Franklin
- Timothy KruserMadison$235K
- Stephen RosenbergMadison$18K
- Matthew WitekMadison$11K
- Anna BrownWausau$9K
- Joseph BoviMilwaukee$6K
- William HallMilwaukee$5K
- Jessica SchusterJohnson Creek$5K
- Lindsay PuckettMilwaukee$4K
- Douglas CalvinAppleton$4K
- Eric XanthopoulosBeloit$3K
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.