Steven Sadao Isono, MD
NPI 1548222128ActiveIndividual· Orthopaedic Surgery· Stanford, CA
Opted out of Medicare from June 2026 to June 2028. Orthopaedic Surgery (MD) in Stanford, California, licensed in CA, with an NPI issued in April 2006. Mostly services rather than prescriptions: Medicare paid $36,260 for 204 patients in 2024, with only 26 Part D claims. Orthofix Medical, Inc. was the largest of 2 companies reporting payments in 2025, $54.92 in all, mostly food and beverage.
Overview
| NPI | 1548222128 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 6, 2006 |
| Last updated in NPPES | Apr 28, 2024 |
| Certified by provider | Apr 28, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery Primary | 207X00000X | G51315 | CA |
| Orthopaedic Surgery, Sports Medicine | 207XX0005X | G51315 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Jun 3, 2026 – Jun 3, 2028 |
| Can order and refer | Yes |
| Accepts assignment | Yes (participating) |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Medicare services in 2024
| Medicare patients | 204 |
|---|---|
| Services billed | 1,160 across 24 procedure codes |
| Paid by Medicare | $36,260 |
Part D prescriptions in 2024
| Prescriptions (claims) | 26 · 29 30-day fills |
|---|---|
| Patients | 14 |
| Total drug cost | $400.07 |
| Generic share | 100% of claims |
Industry payments (Open Payments)
- 2025$54.92 · 2 payments from 2 companies
- 2024$34.84 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Orthofix Medical, Inc. | $37.60 | 1 |
| Pacira Pharmaceuticals Incorporated | $17.32 | 1 |
What the 2025 payments were for
- Food and Beverage$54.92 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Orthopaedic Surgery providers in Stanford
- 1447335385
- 1699292045
- 1821261371
- 1326134909
- 1487101945
- 1720267354
- 1386403392
- 1518545391
- 1083693923
- 1710174180
- 1417802083
- 1649534330