Isaac Yoshii, MD
Anesthesiology · Stanford, CANPI 1154636090
Payments from drug & device makers
What this record shows
This record is dominated by speaking fees: $500 of the $660 with a category attached, or 75.8%. Bard Access Systems, Inc. accounts for 75.8% of it on its own, with 7 other manufacturers making up the rest. Reporting peaked in 2023 at $558 and has fallen 92.5% since, to $42 in 2025.
Across 9 payments — averaging $73.31 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Bard Access Systems, Inc.$500
- Avanos Medical$35
- Edwards Lifesciences$30
- Merck$25
- Celltrion USA Inc.$23
- Takeda Pharmaceuticals U.S.A., Inc.$19
- plus $28 from 2 others
What the payments were for
- Speaking & faculty fees$50076%
- Food & beverage$16024%
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 |
|---|---|---|
| Bard Access Systems, Inc. | 1 | $500 |
| Avanos Medical | 2 | $35 |
| Edwards Lifesciences | 1 | $30 |
| Merck | 1 | $25 |
| Celltrion USA Inc. | 1 | $23 |
| Takeda Pharmaceuticals U.S.A., Inc. | 1 | $19 |
| Johnson & Johnson | 1 | $15 |
| Fisher & Paykel Healthcare Inc | 1 | $13 |
How this compares
$660 in reported general payments places this provider in the 85th percentile of 5,717 anesthesiology 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 anesthesiology in Stanford
- Lawrence ChuStanford$205K
- Hendrikus LemmensStanford$200K
- Brendan CarvalhoStanford$170K
- Martin AngstStanford$99K
- William FeasterStanford$68K
- Ryan DerbyStanford$61K
- Barrett LarsonStanford$51K
- Jack JengSouth San Francisco$1.3M
- Roger PhillipsChico$434K
- David DeyhimyLaguna Hills$344K
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.