Dean G. Mastras, MD
NPI 1487625851ActiveIndividual· Radiology, Radiation Oncology· Gig Harbor, WA
Radiology, Radiation Oncology (MD) in Gig Harbor, Washington, trained at University of Vermont College of Medicine (class of 1989). In 2024 Medicare paid $476,030 for 188 patients, and Part D covered 136 of their prescriptions, 81% of them generic. Novocure Inc. reported $21.52 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1487625851 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Feb 1, 2006 |
| Last updated in NPPES | Sep 9, 2020 |
| Certified by provider | Sep 9, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Radiology, Radiation Oncology Primary | 2085R0001X | MD00029055 | 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 - Radiation Oncology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 188 |
|---|---|
| Services billed | 4,157 across 38 procedure codes |
| Paid by Medicare | $476,030 |
Part D prescriptions in 2024
| Prescriptions (claims) | 136 · 177 30-day fills |
|---|---|
| Patients | 68 |
| Total drug cost | $2,233 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | University of Vermont College of Medicine |
|---|---|
| Graduation year | 1989 |
| Medicare specialty | Radiation Oncology |
Medical groups
- Tacoma Radiation Oncology Center Inc, PsGig Harbor, WA · 6 clinicians
- Peninsula Rad Onc Ctr LLCGig Harbor, WA · 5 clinicians
Hospital affiliations
- St Anthony HospitalGig Harbor, WA
- St Joseph Medical CenterTacoma, WA
- St Michael Medical CenterSilverdale, WA
- Tacoma General Allenmore HospitalTacoma, WA
Industry payments (Open Payments)
- 2025$21.52 · 1 payment from 1 company
- 2024$181.14 · 4 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novocure Inc. | $21.52 | 1 |
What the 2025 payments were for
- Food and Beverage$21.52 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other radiation oncologists in Gig Harbor
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