Katarina Thuy-Dan Nguyen, MD
NPI 1740817964ActiveIndividual· Radiology, Radiation Oncology· Seattle, WA
Radiology, Radiation Oncology (MD) with The Association of University Physicians, practicing in Seattle, Washington. Part D covered 144 prescriptions written in 2024, 100% of them generic. Reflexion Medical, Inc. was the largest of 2 companies reporting payments in 2025, $144.41 in all, mostly food and beverage.
Overview
| NPI | 1740817964 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 26, 2020 |
| Last updated in NPPES | Sep 4, 2025 |
| Certified by provider | Sep 4, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | MD61685788 | WA |
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 (WA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 144 · 182 30-day fills |
|---|---|
| Patients | 63 |
| Total drug cost | $2,314 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2020 |
|---|---|
| Medicare specialty | Radiation Oncology |
| Telehealth | Offers telehealth |
Medical group
- The Association of University PhysiciansSeattle, WA · 3,535 clinicians
Industry payments (Open Payments)
- 2025$144.41 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Reflexion Medical, Inc. | $75.00 | 3 |
| Novartis Pharmaceuticals Corporation | $69.41 | 1 |
What the 2025 payments were for
- Food and Beverage$144.41 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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