Robert Chin, MD
Radiation Oncology · Los Angeles, CANPI 1043407992
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $11,738 of the $18,029 with a category attached, or 65.1%. 5 manufacturers reported payments, led by Siemens Medical Solutions USA, Inc. at 35.1% of the total. Among radiation oncology clinicians in CA 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 11 payments — averaging $1639.02 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Siemens Medical Solutions USA, Inc.$6K
- Coherus Oncology, Inc.$6K
- Sanofi$3K
- KARL Storz Endoscopy-america$2K
- Viewray Technologies Inc$800
Across 6 payments — averaging $33,245 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.
- AstraZeneca$142K
- Siemens Medical Solutions USA, Inc.$46K
- Varian Medical Systems, Inc.$12K
What the payments were for
- Consulting fees$5,83632%
- Speaking & faculty fees$11,73865%
- Travel & lodging$2481%
- Food & beverage$2071%
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 |
|---|---|---|
| Siemens Medical Solutions USA, Inc. | 5 | $6,337 |
| Coherus Oncology, Inc. | 3 | $5,857 |
| Sanofi | 1 | $3,036 |
| KARL Storz Endoscopy-america | 1 | $2,000 |
| Viewray Technologies Inc | 1 | $800 |
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
$18,029 in reported general payments places this provider in the 90th percentile of 627 radiation oncology providers in California.
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 Los Angeles
- Albert ChangLos Angeles$290K
- Drew MoghanakiLos Angeles$183K
- Amar KishanLos Angeles$74K
- Michael SteinbergLos Angeles$32K
- Jason YeLos Angeles$23K
- Alan LeeLos Angeles$12K
- Tania KaprealianLos Angeles$9K
- Eric ChangLos Angeles$9K
- Rakesh PatelLos Gatos$1.3M
- Amir LavafPalm Springs$411K
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.