Mark W. Mashita, PA-C
NPI 1245412535ActiveIndividual· Physician Assistant, Surgical· Everett, WA
Physician Assistant, Surgical (PA-C) with Proliance Surgeons Inc P S, practicing in Everett, Washington. 210 Medicare patients in 2024, $40,255 paid; nearly all of their 426 Part D prescriptions were generic (96%). Smith+nephew, Inc. was the largest of 3 companies reporting payments in 2025, $3,681 in all, mostly travel and lodging. Lists Providence Regional Medical Center Everett as a hospital affiliation.
Overview
| NPI | 1245412535 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Nov 29, 2007 |
| Last updated in NPPES | Apr 15, 2024 |
| Certified by provider | Apr 15, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Surgical Primary | 363AS0400X | PA10005281 | WA |
| Physician Assistant | 363A00000X | PA10005281 | 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 - Physician Assistant (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 210 |
|---|---|
| Services billed | 1,923 across 28 procedure codes |
| Paid by Medicare | $40,255 |
Part D prescriptions in 2024
| Prescriptions (claims) | 426 · 429 30-day fills |
|---|---|
| Patients | 153 |
| Total drug cost | $6,618 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Proliance Surgeons Inc P SEverett, WA · 397 clinicians
Hospital affiliation
- Providence Regional Medical Center EverettEverett, WA
Industry payments (Open Payments)
- 2025$3,681 · 20 payments from 3 companies
- 2024$5,119 · 23 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Smith+nephew, Inc. | $3,623 | 18 |
| Avanos Medical | $32.33 | 1 |
| Orthofix Medical, Inc. | $25.48 | 1 |
What the 2025 payments were for
- Travel and Lodging$2,568 · 7 payments
- Food and Beverage$1,114 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 33 surgical physician assistants in Everett · All surgical physician assistants in Washington