Gowriharan Thaiyananthan, MD
Neurological Surgery · French Camp, CANPI 1518164110
Payments from drug & device makers
What this record shows
This record is dominated by royalties or licence payments: $13,746 of the $21,160 with a category attached, or 65.0%. Osseus Fusion Systems, LLC accounts for 77.7% of it on its own, with 18 other manufacturers making up the rest. Reporting peaked in 2021 at $11,347 and has fallen 92.7% since, to $826 in 2025.
Across 69 payments — averaging $306.67 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Osseus Fusion Systems, LLC$16K
- Alphatec Spine, Inc$2K
- Zimmer Biomet$877
- Bioventus LLC$432
- Medacta USA, Inc.$311
- Providence Medical Technology, Inc.$286
- plus $1K from 13 others
What the payments were for
- Royalty or licence$13,74665%
- Consulting fees$2,25011%
- Travel & lodging$2,48512%
- Food & beverage$2,60512%
- Gifts$750%
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 |
|---|---|---|
| Osseus Fusion Systems, LLC | 11 | $16,439 |
| Alphatec Spine, Inc | 7 | $1,609 |
| Zimmer Biomet | 14 | $877 |
| Bioventus LLC | 4 | $432 |
| Medacta USA, Inc. | 3 | $311 |
| Providence Medical Technology, Inc. | 4 | $286 |
| Si-bone, Inc. | 5 | $260 |
| Spineology Inc. | 2 | $213 |
| Stryker | 6 | $186 |
| Sanara Medtech Inc. | 1 | $159 |
| Augmedics Inc. | 2 | $100 |
| Medtronic | 2 | $66 |
| Nexxt Spine LLC | 1 | $56 |
| Orthofix Medical, Inc. | 1 | $44 |
| Integra Lifesciences Corporation | 2 | $29 |
| Abbott | 1 | $28 |
| Acera Surgical, Inc. | 1 | $25 |
| Vertex | 1 | $23 |
| Amniox Medical, Inc. | 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.
How this compares
$21,160 in reported general payments places this provider in the 75th percentile of 773 neurological surgery 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 neurological surgery in French Camp
- Christopher AmesSan Francisco$7.1M
- Larry KhooLos Angeles$2.8M
- Samy AbdouSan Diego$2.4M
- Bret AbshireMurrieta$2.3M
- William TaylorSan Diego$2.1M
- Tooraj GravoriEncino$2M
- Ali MesiwalaRancho Cucamonga$1.5M
- Joseph OsorioSan Diego$1.3M
- Ian JohnsonFresno$1.3M
- Aaron Cohen-GadolLos Angeles$1.3M
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.