Dean Mastras, MD
NPI 1487625851 · Radiation Oncology Physician · Gig Harbor, WA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dean Mastras, MD is a Radiation Oncology Physician provider in Gig Harbor, WA (NPI 1487625851).
Provider details
- NPI number
- 1487625851
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD00029055 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,935 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Ct Guidance for Insertion of Radiation Therapy Fields77014 | 1,744 | $58 |
| Intensity Modulated Treatment Delivery, Single Or Multiple Fields/Arcs,via Narrow Spatially and Temporally Modulated Beams, Binary, Dynamic Mlc, Per Treatment SessionG6015 | 626 | $363 |
| Calculation of Radiation Therapy Dose77300 | 301 | $33 |
| Radiation Treatment Management, 5 Treatment Sessions77427 | 215 | $188 |
| Design and Construction of Complex Radiation Treatment Device77334 | 185 | $63 |
| Continuing Radiation Therapy Consultation Per Week77336 | 140 | $90 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 44 | 16 |
| Silver Sulfadiazinebrand: Ssd | 15 | 15 |
| Ketoconazole | 13 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$181 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 314 Martin Luther King Jr WaySuite 11Tacoma, WA 98405-4250Phone: (253) 627-6172Fax: (253) 627-8792
Registry dates
- Enumerated
- 2006-02-01
- Last updated
- 2020-09-09
- Certified
- 2020-09-09
Frequently asked questions
- What is Dean Mastras's NPI number?
- Dean Mastras's National Provider Identifier (NPI) is 1487625851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dean Mastras's specialty?
- Dean Mastras is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Dean Mastras located?
- Dean Mastras's practice location on file with NPPES is 11511 Canterwood Blvd Ste 50, Gig Harbor, WA 98332-5816.
- What is Dean Mastras's phone number?
- The practice phone number listed in the NPPES registry for Dean Mastras is (253) 851-5155.
- Does Dean Mastras accept Medicare?
- Dean Mastras is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dean Mastras's NPI active?
- Yes — Dean Mastras's NPI (1487625851) is active in the NPPES registry as of the last update on 2020-09-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.