Diem Phuong Dao Nguyen
NPI 1538831490ActiveIndividual· Nurse Practitioner· San Jose, CA
Nurse Practitioner in San Jose, California, licensed in CA, with an NPI issued in September 2021. Part D covered 16 prescriptions written in 2024, 88% of them generic. Viatris Specialty LLC reported $27.28 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1538831490 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Sep 29, 2021 |
| Last updated in NPPES | Sep 29, 2021 |
| Certified by provider | Sep 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 95017290 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 16 · 28 30-day fills |
|---|---|
| Patients | 13 |
| Total drug cost | $1,761 |
| Generic share | 88% of claims |
Industry payments (Open Payments)
- 2025$27.28 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viatris Specialty LLC | $27.28 | 1 |
What the 2025 payments were for
- Food and Beverage$27.28 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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