James Mok, MD
Orthopaedic Surgery of the Spine · Stanford, CANPI 1831271436
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $232,552 of the $371,476 with a category attached, or 62.6%. Mirus, LLC accounts for 90.4% of it on its own, with 21 other manufacturers making up the rest.
Across 165 payments — averaging $2251.37 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Mirus, LLC$336K
- Amplify Surgical, Inc.$13K
- Medynus Inc$7K
- Si-bone, Inc.$6K
- Globus Medical$3K
- Baxter Healthcare$2K
- plus $4K from 16 others
Across 3 payments — averaging $3333.33 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Additive Implants, Inc.$10K
What the payments were for
- Royalty or licence$122,38133%
- Consulting fees$232,55263%
- Travel & lodging$10,4653%
- Food & beverage$5,5011%
- Education$5770%
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 |
|---|---|---|
| Mirus, LLC | 56 | $335,809 |
| Amplify Surgical, Inc. | 14 | $13,125 |
| Medynus Inc | 1 | $7,000 |
| Si-bone, Inc. | 17 | $6,445 |
| Globus Medical(2 entities) | 29 | $2,916 |
| Baxter Healthcare | 8 | $2,141 |
| VB Spine LLC | 7 | $1,144 |
| Solco Biomedical Corporation | 1 | $750 |
| Stryker | 5 | $359 |
| Orthofix Medical, Inc. | 10 | $305 |
| Spineology Inc. | 1 | $230 |
| Carlsmed, Inc. | 1 | $225 |
| Prosidyan, Inc | 2 | $186 |
| Integrity Implants Inc. | 2 | $176 |
| Centinel Spine, LLC | 2 | $145 |
| Medtronic | 3 | $109 |
| Johnson & Johnson | 1 | $108 |
| Zimmer Biomet | 1 | $100 |
| Augmedics Inc. | 1 | $100 |
| Providence Medical Technology, Inc. | 1 | $57 |
| Brainlab, Inc. | 1 | $26 |
| Medacta USA, Inc. | 1 | $21 |
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.
- EUROPA Pedicle Screw System$335,709
- CYGNUS Anterior Cervical Plate$235,077
- MiRus 3DR Lumbar Interbody System$172,027
- IO Expandable Lumbar Interbody$69,328
- RIGEL 3DR Cervical Interbody$69,328
- dual-X$8,199
- Goblin Spinal Fixation System$7,000
- IFUSE IMPLANT SYSTEM$5,363
- FLOSEAL$1,947
- XLIF$1,475
- dualX and DualPortal$1,149
- EVEREST SPINAL SYSTEM$1,146
- Pulse$771
- dualX$594
- ALIF$508
- CAPRI CORPECTOMY CAGE SYSTEM$279
- FIBERGRAFT$266
- TLIF$258
- Rampart Duo Interbody Fusion System$230
- aprevo$225
How this compares
$371,476 in reported general payments places this provider in the 80th percentile of 288 orthopaedic surgery of the spine providers in California.
See all orthopaedic surgery of the spine 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 |
|---|---|---|
| Gabapentin | 29 | $502 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 19 | $300 |
| Tizanidine Hcl | 18 | $107 |
| Meloxicam | 15 | $105 |
| Methylprednisolone | 17 | $94 |
Paid to pharmacies, not to this prescriber.
Other orthopaedic surgery of the spine in Stanford
- Serena HuStanford$738K
- Kirkham WoodStanford$294K
- John KleimeyerStanford$196K
- Hyun BaeSanta Monica$56.8M
- Choll KimSan Diego$4M
- Stacey BedermanOrange$3.7M
- Gregory Mundisla Jolla$3.3M
- Paul SlosarDaly City$3.1M
- Babak Barcohanavan Nuys$2.9M
- Neelakantan AnandLos Angeles$2.9M
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.