Peter Yz Jiang, MD, PHD
NPI 1689614398ActiveIndividual· Internal Medicine, Hematology & Oncology· Everett, WA
Internal Medicine, Hematology & Oncology (MD, PHD) with Optum Care Washington PLLC, practicing in Everett, Washington. Their prescriptions cost Medicare Part D more than their services did: $5,029,323 for 1,468 claims, against $1,534,695 paid for services in 2024. Janssen Biotech, Inc. was the largest of 8 companies reporting payments in 2025, $1,659 in all, mostly consulting fees. Lists Providence Regional Medical Center Everett and 1 other hospital as hospital affiliations.
Overview
| NPI | 1689614398 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, PHD |
| Sole proprietor | No |
| NPI issued | Jun 8, 2006 |
| Last updated in NPPES | Jul 27, 2026 |
| Certified by provider | Jul 27, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | MD00038484 | 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 - Medical Oncology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 365 |
|---|---|
| Services billed | 64,036 across 140 procedure codes |
| Paid by Medicare | $1,534,695 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,468 · 2,384 30-day fills |
|---|---|
| Patients | 288 |
| Total drug cost | $5,029,323 |
| Generic share | 79% of claims |
Education and affiliations
| Graduation year | 1986 |
|---|---|
| Medicare specialty | Medical Oncology |
| Telehealth | Offers telehealth |
Medical group
- Optum Care Washington PLLCEverett, WA · 683 clinicians
Hospital affiliations
- Providence Regional Medical Center EverettEverett, WA
- Whidbeyhealth Medical CenterCoupeville, WA
Industry payments (Open Payments)
- 2025$1,659 · 9 payments from 8 companies
- 2024$88.36 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $1,010 | 1 |
| Genentech, Inc. | $132.13 | 1 |
| Eisai Inc. | $118.15 | 1 |
| E.R. Squibb & Sons, L.L.C. | $110.24 | 1 |
| Lilly USA, LLC | $107.42 | 1 |
What the 2025 payments were for
- Consulting Fee$1,010 · 1 payment
- Food and Beverage$648.79 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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