James M. Mok, MD
NPI 1831271436ActiveIndividual· Orthopaedic Surgery, Orthopaedic Surgery of the Spine· Stanford, CA
Orthopaedic Surgery, Orthopaedic Surgery of the Spine (MD) in Stanford, California, trained at University of Missouri, Columbia School of Medicine (class of 2003). 408 Medicare patients in 2024, $299,171 paid; nearly all of their 139 Part D prescriptions were generic (97%). Mirus, LLC was the largest of 8 companies reporting payments in 2025, $53,653 in all, mostly royalties and licenses.
Overview
| NPI | 1831271436 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 20, 2006 |
| Last updated in NPPES | Apr 28, 2024 |
| Certified by provider | Apr 28, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Orthopaedic Surgery of the Spine Primary | 207XS0117X | A91148 | CA |
| Orthopaedic Surgery | 207X00000X | A91148 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Orthopedic Surgery (CA); Practitioner - Orthopedic Surgery (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 408 |
|---|---|
| Services billed | 1,310 across 75 procedure codes |
| Paid by Medicare | $299,171 |
Part D prescriptions in 2024
| Prescriptions (claims) | 139 · 150 30-day fills |
|---|---|
| Patients | 56 |
| Total drug cost | $2,871 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Orthopedic Surgery |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliations
- Adventist Health SonoraSonora, CA
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$53,653 · 26 payments from 8 companies
- 2024$59,366 · 15 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Mirus, LLC | $49,043 | 11 |
| Amplify Surgical, Inc. | $3,000 | 1 |
| Vb Spine LLC | $1,144 | 7 |
| Globus Medical, Inc. | $188.11 | 2 |
| Centinel Spine, LLC | $120.15 | 1 |
What the 2025 payments were for
- Royalty or License$41,243 · 2 payments
- Consulting Fee$10,800 · 10 payments
- Travel and Lodging$838.17 · 4 payments
- Food and Beverage$771.70 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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