Sonja Halvorson, PA-C
NPI 1154879351ActiveIndividual· Physician Assistant· Eugene, OR
Physician Assistant (PA-C) in Eugene, Oregon, licensed in OR, with an NPI issued in September 2016. 127 Medicare patients in 2024, $11,623 paid; nearly all of their 102 Part D prescriptions were generic (90%).
Overview
| NPI | 1154879351 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | Yes |
| NPI issued | Sep 15, 2016 |
| Last updated in NPPES | Sep 10, 2025 |
| Certified by provider | Sep 10, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 189587 | OR |
| Physician Assistant | 363A00000X | PA189587 | OR |
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 (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 127 |
|---|---|
| Services billed | 146 across 15 procedure codes |
| Paid by Medicare | $11,623 |
Part D prescriptions in 2024
| Prescriptions (claims) | 102 · 103 30-day fills |
|---|---|
| Patients | 76 |
| Total drug cost | $2,362 |
| Generic share | 90% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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