David Thordarson, MD
Orthopaedic Surgery · Los Angeles, CANPI 1457363798
Payments from drug & device makers
Across 212 payments — averaging $12,310 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Paragon 28, Inc.$2.3M
- Extremity Medical$111K
- Stryker$71K
- Ortho Solutions Inc$59K
- Orthofix Medical, Inc.$23K
- Trilliant Surgical LLC.$12K
- plus $12K from 13 others
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 |
|---|---|---|
| Paragon 28, Inc. | 41 | $2,320,132 |
| Extremity Medical | 53 | $111,232 |
| Stryker(2 entities) | 47 | $71,470 |
| Ortho Solutions Inc | 12 | $58,925 |
| Orthofix Medical, Inc. | 20 | $23,319 |
| Trilliant Surgical LLC. | 8 | $12,225 |
| Medshape, Inc. | 4 | $3,774 |
| Encore Medical, LP | 3 | $3,500 |
| Seaspine Orthopedics Corporation | 7 | $1,560 |
| Novastep Inc. | 3 | $1,158 |
| Micromed Inc | 1 | $1,019 |
| Exactech, Inc. | 2 | $367 |
| Saxum Surgical, Inc. | 3 | $246 |
| Crossroads Extremity Systems, LLC | 1 | $147 |
| Treace Medical Concepts, Inc. | 1 | $147 |
| Medartis Inc. | 1 | $146 |
| Smith+Nephew | 3 | $144 |
| Ossio Inc | 1 | $131 |
| Zimmer Biomet | 1 | $125 |
How this compares
$2,609,769 in reported general payments places this provider in the 95th 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 Los Angeles
- Kelly VinceLos Angeles$9.6M
- Jay LiebermanLos Angeles$4.8M
- Thomas SchmalzriedLos Angeles$4M
- David SkaggsLos Angeles$2.6M
- Edward McPhersonLos Angeles$1.3M
- Andrew SpitzerLos Angeles$1.2M
- Daniel AllisonLos Angeles$1.1M
- Charles MoonLos Angeles$986K
- Justin SalimanLos Angeles$948K
- Yashar JavidanLos Angeles$685K
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.