Stuart Tsuji, M.D., PH.D.
NPI 1558534602ActiveIndividual· Radiology, Radiation Oncology· Honolulu, HI
Radiology, Radiation Oncology (M.D., PH.D.) in Honolulu, Hawaii, trained at Stanford University School of Medicine (class of 2004). 124 Medicare patients in 2024, $98,970 paid; nearly all of their 131 Part D prescriptions were generic (94%). Novartis Pharmaceuticals Corporation was the largest of 7 companies reporting payments in 2025, $262.11 in all, mostly food and beverage.
Overview
| NPI | 1558534602 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., PH.D. |
| Sole proprietor | Yes |
| NPI issued | Apr 9, 2008 |
| Last updated in NPPES | Nov 20, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | MD15308 | HI |
| Radiology, Radiation Oncology | 2085R0001X | A95084 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Radiation Oncology (HI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 124 |
|---|---|
| Services billed | 1,262 across 33 procedure codes |
| Paid by Medicare | $98,970 |
Part D prescriptions in 2024
| Prescriptions (claims) | 131 · 195 30-day fills |
|---|---|
| Patients | 48 |
| Total drug cost | $2,422 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical group
- The Queens Medical CenterHonolulu, HI · 192 clinicians
Hospital affiliation
- The Queens Medical CenterHonolulu, HI
Industry payments (Open Payments)
- 2025$262.11 · 12 payments from 7 companies
- 2024$247.65 · 9 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $113.69 | 6 |
| Siemens Medical Solutions USA, Inc. | $36.52 | 1 |
| Astrazeneca Pharmaceuticals LP | $28.26 | 1 |
| Teleflex LLC | $25.92 | 1 |
| Novocure Inc. | $21.73 | 1 |
What the 2025 payments were for
- Food and Beverage$262.11 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 29 radiation oncologists in Honolulu · All radiation oncologists in Hawaii