Sean S. Szeja, M.D.
NPI 1023351822ActiveIndividual· Radiology, Radiation Oncology· Upland, CA
Radiology, Radiation Oncology (M.D.) in Upland, California, trained at University of Arizona College of Medicine (class of 2013). In 2024 Medicare paid $163,377 for 198 patients, and Part D covered 136 of their prescriptions, 82% of them generic. Siemens Medical Solutions USA, Inc. reported $228.67 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1023351822 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Mar 29, 2013 |
| Last updated in NPPES | Nov 13, 2020 |
| Certified by provider | Nov 13, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | A152661 | CA |
| Radiology, Radiation Oncology | 2085R0001X | BP10049243 | TX |
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 - Radiation Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 198 |
|---|---|
| Services billed | 2,166 across 30 procedure codes |
| Paid by Medicare | $163,377 |
Part D prescriptions in 2024
| Prescriptions (claims) | 136 · 162 30-day fills |
|---|---|
| Patients | 70 |
| Total drug cost | $3,297 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | University of Arizona College of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical group
- City of Hope Medical FoundationDuarte, CA · 982 clinicians
Hospital affiliation
- San Antonio Regional HospitalUpland, CA
Industry payments (Open Payments)
- 2025$228.67 · 3 payments from 1 company
- 2024$170.02 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Siemens Medical Solutions USA, Inc. | $228.67 | 3 |
What the 2025 payments were for
- Food and Beverage$228.67 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Radiology, Radiation Oncology providers in Upland
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