John Locke, MD
Orthopaedic Surgery · Corona, CANPI 1467520189
Payments from drug & device makers
Across 24 payments — averaging $132.16 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Encore Medical, LP$3K
- Stryker$150
- Johnson & Johnson$125
- Boston Scientific$114
- Pacira Therapeutics, Inc.$67
- Amgen$64
- plus $137 from 7 others
What the payments were for
- Speaking & faculty fees$1,50047%
- Travel & lodging$85927%
- Food & beverage$81226%
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 |
|---|---|---|
| Encore Medical, LP | 6 | $2,514 |
| Stryker | 2 | $150 |
| Johnson & Johnson | 1 | $125 |
| Boston Scientific | 1 | $114 |
| Pacira Therapeutics, Inc. | 3 | $67 |
| Amgen | 4 | $64 |
| Vision Quest Industries Inc. | 1 | $37 |
| Medtronic | 1 | $22 |
| Valeritas, Inc. | 1 | $18 |
| Ferring Pharmaceuticals Inc. | 1 | $18 |
| Abiomed | 1 | $15 |
| Sanofi-aventis U.S. LLC | 1 | $13 |
| Vertos Medical, Inc. | 1 | $13 |
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
$3,172 in reported general payments places this provider in the 50th 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 Corona
- Bradford HackArcadia$18.3M
- Robert GorabOrange$14.5M
- Kelly VinceLos Angeles$9.6M
- Stephen HowellSacramento$9.4M
- Thomas CoonRed Bluff$9.2M
- Peter NewtonSan Diego$7M
- Nirav AminPlacentia$5.8M
- Tom NorrisSan Francisco$5.3M
- Jay LiebermanLos Angeles$4.8M
- 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.