Katherine Chang, NP
NPI 1679357248ActiveIndividual· Nurse Practitioner· Walnut Creek, CA
Nurse Practitioner (NP) in Walnut Creek, California, licensed in CA, with an NPI issued in August 2023. Astrazeneca Pharmaceuticals LP was the largest of 3 companies reporting payments in 2025, $68.27 in all, mostly food and beverage.
Overview
| NPI | 1679357248 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | Yes |
| NPI issued | Aug 23, 2023 |
| Last updated in NPPES | Nov 13, 2024 |
| Certified by provider | Nov 13, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 95010900 | 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 |
|---|
Industry payments (Open Payments)
- 2025$68.27 · 3 payments from 3 companies
- 2024$260.84 · 7 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $24.53 | 1 |
| Merck Sharp & Dohme LLC | $23.99 | 1 |
| Avanos Medical | $19.75 | 1 |
What the 2025 payments were for
- Food and Beverage$68.27 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 74 nurse practitioners in Walnut Creek · All nurse practitioners in California