Christian Athanassious, MD
Orthopaedic Surgery · Santa Rosa, CANPI 1043471279
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $161,706 of the $194,331 with a category attached, or 83.2%. Globus Medical accounts for 98.7% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2023 at $61,687 and has fallen 54.0% since, to $28,380 in 2025. Among orthopaedic surgery clinicians in CA with any reported payments, this total sits in the top 10% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 386 payments — averaging $503.45 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Globus Medical$192K
- Stryker$2K
- Johnson & Johnson$168
- Arteriocyte Medical Systems, Inc.$59
- Electronic Waveform Lab, Inc.$41
- Abbott$37
- plus $86 from 3 others
What the payments were for
- Consulting fees$161,70683%
- Speaking & faculty fees$4,0002%
- Travel & lodging$18,78910%
- Food & beverage$9,5765%
- Education$2600%
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 |
|---|---|---|
| Globus Medical(2 entities) | 370 | $191,791 |
| Stryker | 3 | $2,151 |
| Johnson & Johnson(2 entities) | 4 | $168 |
| Arteriocyte Medical Systems, Inc. | 1 | $59 |
| Electronic Waveform Lab, Inc. | 3 | $41 |
| Abbott | 1 | $37 |
| Si-bone, Inc. | 2 | $34 |
| Vertex | 1 | $27 |
| Smith+Nephew | 1 | $25 |
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.
- ALIF$83,622
- XLIF$21,218
- MaXcess$11,426
- Quartex$10,800
- Modulus$4,146
- iGA$4,000
- NVM5$4,000
- Excelsius - GPS$3,228
- NIAGARA LATERAL ACCESS SYSTEM$2,000
- ExcelsiusGPS Robotic Navigation System$1,350
- RELINE$321
- Pulse$241
- MARS Anterior Retractor$165
- X-CORE$146
- LATERALALIF$126
- PANGEA$106
- ACP$102
How this compares
$194,331 in reported general payments places this provider in the 90th percentile of 1,808 orthopaedic 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 orthopaedic surgery in Santa Rosa
- Bradford HackArcadia$18.3M
- Robert GorabOrange$13.6M
- Kelly VinceLos Angeles$9.6M
- Stephen HowellSacramento$9.4M
- Thomas CoonRed Bluff$9.2M
- Nirav AminPlacentia$5.6M
- Tom NorrisSan Francisco$5.3M
- Jay LiebermanLos Angeles$4.8M
- Peter NewtonSan Diego$4.2M
- Sigurd BervenSan Francisco$4.1M
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.