Zizhen Feng, M.D., PHD
NPI 1285096347ActiveIndividual· Internal Medicine, Hematology & Oncology· Vancouver, WA
Internal Medicine, Hematology & Oncology (M.D., PHD) with Legacy Salmon Creek Hospital, practicing in Vancouver, Washington. Their prescriptions cost Medicare Part D more than their services did: $872,100 for 1,023 claims, against $72,469 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 3 companies reporting payments in 2025, $1,257 in all, mostly speaking and faculty fees. Lists Legacy Salmon Creek Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1285096347 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., PHD |
| Sole proprietor | No |
| NPI issued | Mar 27, 2016 |
| Last updated in NPPES | Sep 20, 2023 |
| Certified by provider | Sep 20, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | MD61421589 | WA |
| Internal Medicine, Hematology & Oncology | 207RH0003X | MD200494 | OR |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Medical Oncology (OR); Practitioner - Hematology/Oncology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 183 |
|---|---|
| Services billed | 945 across 12 procedure codes |
| Paid by Medicare | $72,469 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,023 · 1,424 30-day fills |
|---|---|
| Patients | 215 |
| Total drug cost | $872,100 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2008 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Legacy Salmon Creek HospitalPortland, OR · 301 clinicians
Hospital affiliations
- Legacy Salmon Creek Medical CenterVancouver, WA
- Peacehealth Southwest Medical CenteVancouver, WA
Industry payments (Open Payments)
- 2025$1,257 · 5 payments from 3 companies
- 2024$2,309 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $980.00 | 2 |
| Adaptive Biotechnologies Corporation | $159.27 | 1 |
| Astellas Pharma US Inc | $117.96 | 2 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$980.00 · 2 payments
- Food and Beverage$177.24 · 2 payments
- Education$99.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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