Stephanie Martha Chiu, NP
NPI 1043091663ActiveIndividual· Nurse Practitioner· Walnut Creek, CA
Nurse Practitioner (NP) in Walnut Creek, California, licensed in CA, with an NPI issued in October 2023. Part D covered 584 prescriptions written in 2024, 86% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 54 companies reporting payments in 2025, $5,039 in all, mostly food and beverage.
Overview
| NPI | 1043091663 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | No |
| NPI issued | Oct 10, 2023 |
| Last updated in NPPES | Oct 10, 2023 |
| Certified by provider | Oct 10, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 95027633 | 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) | Enrolled Practitioner - Nurse Practitioner (CA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 584 · 745 30-day fills |
|---|---|
| Patients | 158 |
| Total drug cost | $1,048,526 |
| Generic share | 86% of claims |
Industry payments (Open Payments)
- 2025$5,039 · 211 payments from 54 companies
- 2024$4,710 · 198 payments from 42 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $636.38 | 35 |
| Janssen Biotech, Inc. | $446.28 | 21 |
| Pfizer Inc. | $403.95 | 19 |
| Merck Sharp & Dohme LLC | $326.70 | 12 |
| Daiichi Sankyo Inc. | $315.96 | 16 |
What the 2025 payments were for
- Food and Beverage$4,744 · 208 payments
- Education$294.64 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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