Chadi Chahin, MD
Vascular & Interventional Radiology · Glendale, CANPI 1619935590
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 67 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 16 manufacturers reported payments, led by Sirtex Medical Inc at 45.9% of the total. 2025 is the largest year on record at $749, 4.5 times the $166 reported in 2019. That places this record below the midpoint for vascular & interventional radiology clinicians in CA, where the typical reported total is $2,952.
Across 67 payments — averaging $38.02 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Sirtex Medical Inc$1K
- Abbott$304
- Siemens Medical Solutions USA, Inc.$216
- Johnson & Johnson$209
- ZOLL Services LLC (a/k/a ZOLL Lifecor Corp)$164
- Inari Medical, Inc.$138
- plus $347 from 10 others
What the payments were for
- Food & beverage$2,547100%
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 | 26 | $1,170 |
| Abbott | 6 | $304 |
| Siemens Medical Solutions USA, Inc. | 8 | $216 |
| Johnson & Johnson | 7 | $209 |
| ZOLL Services LLC (a/k/a ZOLL Lifecor Corp) | 9 | $164 |
| Inari Medical, Inc. | 1 | $138 |
| Silk Road Medical, Inc. | 1 | $132 |
| Abiomed | 1 | $71 |
| Boehringer Ingelheim | 1 | $25 |
| W. L. Gore & Associates, Inc. | 1 | $20 |
| Biocompatibles, Inc. | 1 | $18 |
| Trisalus Life Sciences, Inc. | 1 | $18 |
| Medtronic | 1 | $17 |
| Teleflex LLC | 1 | $16 |
| Philips North America LLC | 1 | $16 |
| Avinger Inc. | 1 | $14 |
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
$2,547 in reported general payments places this provider in the 45th 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 Glendale
- Mahmood RazaviOrange$2.4M
- Keith TerasakiLos Angeles$1.7M
- Bart DolmatchMountain View$1.7M
- Edward LeeLos Angeles$1.4M
- Alexander MisonoNewport Beach$1.3M
- Kevin BurnsOrange$1.1M
- Siddharth PadiaLos Angeles$960K
- Satoshi TateshimaLos Angeles$764K
- Blaise BaxterSan Francisco$757K
- Navid EghbaliehLos Angeles$639K
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.