Timothy Charlton, MD
Foot and Ankle Surgery · Los Angeles, CANPI 1104863661
Payments from drug & device makers
What this record shows
This record is dominated by royalties or licence payments: $106,895 of the $124,840 with a category attached, or 85.6%. Extremity Medical accounts for 96.4% of it on its own, with 14 other manufacturers making up the rest. 2025 is the largest year on record at $40,183, 4.6 times the $8,772 reported in 2019. Among foot and ankle surgery 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 82 payments — averaging $1522.44 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Extremity Medical$120K
- Saxum Surgical, Inc.$2K
- Stryker$518
- Micromed Inc$513
- Paragon 28, Inc.$455
- Treace Medical Concepts, Inc.$287
- plus $1K from 9 others
What the payments were for
- Royalty or licence$106,89586%
- Consulting fees$10,0008%
- Travel & lodging$1,7341%
- Food & beverage$4,5074%
- Education$1,7031%
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 |
|---|---|---|
| Extremity Medical | 47 | $120,303 |
| Saxum Surgical, Inc. | 6 | $1,607 |
| Stryker(2 entities) | 4 | $518 |
| Micromed Inc | 2 | $513 |
| Paragon 28, Inc. | 6 | $455 |
| Treace Medical Concepts, Inc. | 2 | $287 |
| Zimmer Biomet | 3 | $229 |
| Novastep Inc. | 2 | $223 |
| Medartis Inc. | 2 | $194 |
| Trilliant Surgical LLC. | 1 | $149 |
| Crossroads Extremity Systems, LLC | 1 | $147 |
| Smith+Nephew | 3 | $144 |
| Medshape, Inc. | 1 | $29 |
| Checkpoint Surgical, Inc | 1 | $21 |
| Integra Lifesciences Corporation | 1 | $19 |
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.
- OMNI$111,895
- ACCULIF$150
- Arsenal Sinus Support Plate$149
- Lapiplasty System$147
- PECA Bunion Correction System$145
- AUGMENT$136
- Portfolio$134
- Foot and Ankle$126
- InCore Lapidus$125
- APTUS$125
- SMART28$125
- INFINITY$107
- INBONE$107
How this compares
$124,840 in reported general payments places this provider in the 95th percentile of 1,126 foot and ankle 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.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Celecoxib | 239 | $6,536 |
| Diclofenac Sodium | 84 | $2,225 |
| Gabapentin | 20 | $185 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 13 | $51 |
Paid to pharmacies, not to this prescriber.
Other foot and ankle surgery in Los Angeles
- Eric TanLos Angeles$447K
- Christopher KiddLos Angeles$60K
- Eric GizaSacramento$3.6M
- Thomas HarrisPasadena$3M
- Thomas ChangSanta Rosa$2M
- Michael CoughlinSan Francisco$1.6M
- Vladimir ZeetserEncino$677K
- Jason NowakRedding$526K
- Candice BradyCamarillo$462K
- Andrew HsuOrange$456K
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.