Nishita Kothary, MD
Vascular & Interventional Radiology · Stanford, CANPI 1750437000
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $14,420 of the $22,979 with a category attached, or 62.8%. 15 manufacturers reported payments, led by Siemens Medical Solutions USA, Inc. at 45.4% of the total. Reporting peaked in 2023 at $11,007 and has fallen 62.6% since, to $4,121 in 2025.
Across 45 payments — averaging $510.65 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Siemens Medical Solutions USA, Inc.$10K
- Cook Incorporated$4K
- Guerbet LLC$3K
- AstraZeneca$3K
- Eisai Inc.$735
- Instylla, Inc.$500
- plus $1K from 9 others
Across 2 payments — averaging $49,492 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.
- Varian Medical Systems, Inc.$50K
- Siemens Medical Solutions USA, Inc.$49K
What the payments were for
- Consulting fees$14,42063%
- Speaking & faculty fees$4,30519%
- Travel & lodging$1,9939%
- Food & beverage$2,26210%
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. | 12 | $10,440 |
| Cook Incorporated | 2 | $4,305 |
| Guerbet LLC | 6 | $3,083 |
| AstraZeneca | 1 | $2,685 |
| Eisai Inc. | 1 | $735 |
| Instylla, Inc. | 1 | $500 |
| Bard Peripheral Vascular, Inc. | 2 | $252 |
| Boston Scientific | 6 | $251 |
| Sirtex Medical Inc | 4 | $250 |
| Penumbra, Inc. | 4 | $220 |
| Terumo Medical Corporation | 1 | $97 |
| Johnson & Johnson | 2 | $82 |
| GE HealthCare | 1 | $31 |
| Merit Medical Systems Inc | 1 | $24 |
| Stryker | 1 | $24 |
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.
- Cook$4,305
- Lipiodol$3,058
- LENVIMA$735
- VENOVO$252
- Varian CRYOCARE TOUCH System$162
- LAVA LES (Liquid Embolic System)$148
- Penumbra Ruby Coil$145
- Indigo$145
How this compares
$22,979 in reported general payments places this provider in the 80th 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 Stanford
- Lawrence HofmannStanford$301K
- Daniel SzeStanford$135K
- David WangStanford$70K
- Sirish KishoreStanford$62K
- 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
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.