Peter Chen, MD
Radiation Oncology · Royal Oak, MINPI 1932168481
Payments from drug & device makers
Across 21 payments — averaging $66.33 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Samsung HME America, Inc.$184
- Elekta, Inc.$178
- Bioprotect Medical, Inc.$137
- Daiichi Sankyo Inc.$133
- AstraZeneca$125
- Lilly USA, LLC$114
- plus $522 from 12 others
What the payments were for
- Food & beverage$1,393100%
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 |
|---|---|---|
| Samsung HME America, Inc. | 1 | $184 |
| Elekta, Inc. | 2 | $178 |
| Bioprotect Medical, Inc. | 1 | $137 |
| Daiichi Sankyo Inc. | 2 | $133 |
| AstraZeneca | 1 | $125 |
| Lilly USA, LLC | 1 | $114 |
| Genentech USA, Inc. | 2 | $113 |
| Tempus AI, Inc | 1 | $113 |
| Hologic Sales And Service, LLC | 1 | $81 |
| Medtronic | 1 | $51 |
| Endomagnetics Ltd | 1 | $38 |
| Eisai Inc. | 1 | $23 |
| Deciphera Pharmaceuticals Inc. | 1 | $21 |
| Exelixis Inc. | 1 | $19 |
| Novartis | 1 | $18 |
| Foundation Medicine, Inc. | 1 | $16 |
| Tolmar, Inc. | 1 | $15 |
| Pharmaand GmbH | 1 | $15 |
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.
- BIOPROTECT BALLOON IMPLANT SYSTEM$137
- Esteya$130
- Flexitron$130
- microSelectron$130
- Venezia$130
- LYNPARZA$125
- Enhertu$124
How this compares
$1,393 in reported general payments places this provider in the 65th percentile of 198 radiation oncology providers in Michigan.
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 radiation oncology in Royal Oak
- Inga GrillsRoyal Oak$389K
- Daniel KraussRoyal Oak$60K
- Craig StevensRoyal Oak$11K
- Hong-Yiou LinRoyal Oak$3K
- Benjamin WillenRoyal Oak$1K
- William JacksonAnn Arbor$1.6M
- Brandon ManciniGrand Rapids$1.3M
- Thomas BoikeClarkston$1.2M
- Daniel ChangAnn Arbor$921K
- Andrew ThompsonSterling Heights$796K
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.