Eric Grigsby, MD
Pain Medicine · Napa, CANPI 1952328494
Payments from drug & device makers
What this record shows
This record is dominated by education: $446,428 of the $499,452 with a category attached, or 89.4%. Bioness Inc accounts for 89.9% of it on its own, with 13 other manufacturers making up the rest. Reporting peaked in 2019 at $196,407 and has fallen 100.0% since, to $53 in 2025. Among pain medicine clinicians in CA with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 78 payments — averaging $6403.23 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Bioness Inc$449K
- Boston Scientific$30K
- Biogen$12K
- Medtronic$7K
- Tersera Therapeutics LLC$466
- Saluda Medical Americas, Inc.$376
- plus $855 from 8 others
Across 102 payments — averaging $27,027 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.
- Eli Lilly$1.7M
- Medtronic$676K
- Amgen$291K
- E.r. Squibb & Sons, L.L.C.$53K
- Neuronetics, Inc.$45K
- Seikagaku Corporation$15K
- plus $13K from 1 others
What the payments were for
- Consulting fees$19,2434%
- Speaking & faculty fees$17,3753%
- Grants$4,3901%
- Travel & lodging$6,8271%
- Food & beverage$2,5111%
- Education$446,42889%
- Entertainment$2,6781%
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 |
|---|---|---|
| Bioness Inc | 5 | $448,930 |
| Boston Scientific | 19 | $29,902 |
| Biogen | 13 | $12,288 |
| Medtronic(2 entities) | 18 | $6,634 |
| Tersera Therapeutics LLC | 7 | $466 |
| Saluda Medical Americas, Inc. | 1 | $376 |
| Neuronetics, Inc. | 5 | $339 |
| Bioventus LLC | 2 | $201 |
| Nevro Corp. | 3 | $107 |
| SPR Therapeutics, Inc | 1 | $73 |
| Spinal Elements, Inc. | 1 | $49 |
| Eli Lilly | 1 | $39 |
| Lilly USA, LLC | 1 | $26 |
| Eisai Inc. | 1 | $22 |
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.
- Stimrouter for pain$448,930
- SPECTRA WAVEWRITER$27,922
- SPINRAZA$7,565
- AUTOFILL$2,168
- GENERAL - THERAPIES$1,746
- Evoke SCS$376
- NEUROSTAR TMS THERAPY$152
- SYNCHROMEDII$139
- Stimrouter Implantable Kit$137
- INTELLIS ADAPTIVESTIM$112
- TARGETSTIM$106
How this compares
$499,452 in reported general payments places this provider in the 95th percentile of 840 pain medicine 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 pain medicine in Napa
- Jacqueline WeisbeinNapa$494K
- Jason PopeSanta Rosa$2.1M
- Ramana NaiduLarkspur$1.4M
- Foead GeulaStudio City$1.3M
- Krishnan ChakravarthyTemecula$1.3M
- Kasra AmirdelfanWalnut Creek$783K
- Gerald SacksSanta Monica$389K
- Samir ShethRoseville$356K
- Einar OttestadStanford$352K
- Shveta JainFullerton$351K
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.