Chih-Sheng Chiang
Vascular & Interventional Radiology · Los Angeles, CANPI 1295198638
Payments from drug & device makers
What this record shows
This record is dominated by travel and lodging: $33,807 of the $43,584 with a category attached, or 77.6%. Siemens Medical Solutions USA, Inc. accounts for 76.8% of it on its own, with 9 other manufacturers making up the rest. Reporting peaked in 2023 at $14,866 and has fallen 76.6% since, to $3,477 in 2025.
Across 114 payments — averaging $382.31 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Siemens Medical Solutions USA, Inc.$33K
- GE HealthCare$4K
- Trisalus Life Sciences, Inc.$4K
- Boston Scientific$462
- Penumbra, Inc.$419
- Histosonics, Inc.$210
- plus $602 from 4 others
Across 4 payments — averaging $31,506 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.
- Ethicon Endo-surgery Inc.$126K
What the payments were for
- Speaking & faculty fees$5,90614%
- Travel & lodging$33,80778%
- Food & beverage$3,8729%
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. | 83 | $33,452 |
| GE HealthCare | 3 | $4,294 |
| Trisalus Life Sciences, Inc. | 12 | $4,145 |
| Boston Scientific | 5 | $462 |
| Penumbra, Inc. | 3 | $419 |
| Histosonics, Inc. | 1 | $210 |
| Sirtex Medical Inc | 4 | $156 |
| Galvanize Therapeutics, Inc | 1 | $152 |
| Bard Peripheral Vascular, Inc. | 1 | $150 |
| Medtronic | 1 | $144 |
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.
- Artis icono floor$19,446
- LOGIQ$4,294
- TRINAV INFUSION SYSTEM$3,900
- NAEOTOM Alpha$3,140
- MAGNETOM Free.Max$2,754
- ARTIS icono biplane$1,392
- Indigo System$419
- MAGNETOM Vida$296
- TheraSphere Y90 Glass Microspheres 10 GBq$272
- ALIYA SYSTEM$152
- Abre$144
- ICEfx Cryoablation System$136
How this compares
$43,584 in reported general payments places this provider in the 85th percentile of 504 vascular & interventional radiology providers in California.
See all vascular & interventional radiology 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 vascular & interventional radiology in Los Angeles
- Keith TerasakiLos Angeles$1.7M
- Edward LeeLos Angeles$1.4M
- Siddharth PadiaLos Angeles$960K
- Satoshi TateshimaLos Angeles$764K
- Navid EghbaliehLos Angeles$639K
- John MoriartyLos Angeles$527K
- Justin McWilliamsLos Angeles$265K
- Jessica StewartLos Angeles$254K
- Evan LehrmanLos Angeles$218K
- Steven RamanLos Angeles$211K
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.