Ashish Nanda, MD
Vascular Neurology · Fullerton, CANPI 1598980518
Payments from drug & device makers
What this record shows
The money is spread across several categories — consulting fees (59.9%), speaking fees and food and beverage — rather than concentrated in one kind of arrangement. Penumbra, Inc. accounts for 76.8% of it on its own, with 11 other manufacturers making up the rest. Reporting peaked in 2024 at $33,359 and has fallen 98.1% since, to $624 in 2025.
Across 193 payments — averaging $340.87 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Penumbra, Inc.$51K
- Medical Device Business Services, Inc.$11K
- Johnson & Johnson$1K
- Stryker$1K
- Medtronic$438
- Imperative Care, Inc$226
- plus $602 from 6 others
Across 181 payments — averaging $1500.14 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.
- Penumbra, Inc.$272K
What the payments were for
- Consulting fees$39,37660%
- Speaking & faculty fees$12,30019%
- Travel & lodging$4,0406%
- Food & beverage$10,07115%
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 |
|---|---|---|
| Penumbra, Inc. | 137 | $50,518 |
| Medical Device Business Services, Inc. | 5 | $11,384 |
| Johnson & Johnson | 14 | $1,315 |
| Stryker | 18 | $1,305 |
| Medtronic(3 entities) | 7 | $438 |
| Imperative Care, Inc | 3 | $226 |
| Access Pro Medical, LLC | 2 | $190 |
| Scientia Vascular | 2 | $181 |
| Acera Surgical, Inc. | 1 | $148 |
| Microvention, Inc. | 2 | $33 |
| Boston Scientific | 1 | $33 |
| E.r. Squibb & Sons, L.L.C. | 1 | $17 |
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.
- Penumbra System$46,627
- TRUFILL$7,526
- Embotrap$7,400
- CEREPAK UNIFORM$7,275
- Pulsar Vascular PulseRider Aneurysm Neck Reconstruction Device$7,275
- EMBOGUARD$4,176
- Smart Coil$1,316
- Penumbra Coil 400$667
- EMBOTRAP II Revascularization Device$403
- TARGET$385
- DELTAMAXX$283
- Penumbra SMART Coil$252
- Pipeline$236
- AXS VECTA 71$156
- Matriderm$155
- Restrata Wound Matrix$148
- SURPASS EVOLVE$141
- ZOOM REPERFUSION CATHETER$138
- ZOOM 88-T LARGE DISTAL PLATFORM$138
- RED 72$137
How this compares
$65,787 in reported general payments places this provider in the 85th percentile of 58 vascular neurology 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 neurology in Fullerton
- Gregory AlbersStanford$415K
- Chitra VenkatasubramanianStanford$260K
- Shuichi SuzukiArcadia$126K
- Royya ModirSan Diego$113K
- Maarten LansbergStanford$86K
- Muhammad TaqiPalm Springs$77K
- Andrew XavierMountain View$46K
- Sarah LeeStanford$35K
- May NourLos Angeles$32K
- Banafsheh YafehLong Beach$17K
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.