DEAN G MASTRAS (MD) – Radiation Oncology Physician, NPI 1487625851
Radiation Oncology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
184 RADIATION ONCOLOGY in WA
Provider Addresses for DEAN G MASTRAS (MD)
314 Martin Luther King Jr Way
Suite 11
Tacoma, WA 984054250
Phone: (253) 627-6172
Fax: (253) 627-8792
Type: Location
6509 B, Bridgeport Way West, Harvest Ridge, University Place, Pierce County, Washington, 98467, United States
UNIVERSITY PLACE, WA 984664335
Phone: (253) 779-6325
Fax: (253) 627-8792
Type: Mailing
11511 CANTERWOOD BLVD STE 50
GIG HARBOR, WA 983325816
Phone: (253) 851-5155
Fax: (253) 627-8792
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $204.
Total Amount is formed as General ($204) + Research ($0) + Ownership ($0) = $204.
Last reported payment date: 2024-09-18 • Largest payer in this snapshot: GE HEALTHCARE ($99).
Total Amount
$204
General + Research + Ownership
Payments
5
Total payment records
General Amount
$204
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GE HEALTHCARE | $99 |
| Siemens Medical Solutions USA, Inc. | $48 |
| Regeneron Healthcare Solutions, Inc. | $38 |
| Novocure Inc. | $20 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-07-01
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040701001540 | I | Radiation Oncology | WA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 77014 | Ct guidance for insertion of radiation therapy fields | 1,226 | 71 | $0 |
| 77427 | Radiation treatment management, 5 treatment sessions | 275 | 76 | $0 |
| 77300 | Calculation of radiation therapy dose | 216 | 59 | $0 |
| 77334 | Design and construction of complex radiation treatment device | 141 | 64 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 99 | 85 | $0 |
Insurance plans in this area (ZIP 98405)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Radiation Oncology | WA | |
| Radiation Oncology | WA | |
| - | WA | |
| Radiation Oncology | WA | |
| Radiation Oncology | WA | |
| Radiation Oncology | WA | |
| Radiation Oncology | WA |
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