Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Miss. Sonja Halvorson, PA-C

Individual provider Physician Assistant · NPI 1154879351

Miss. Sonja Halvorson, PA-C is a Physician Assistant in Eugene, Oregon. Practices as a sole proprietor and works from 2 locations. Licensed in Oregon.

Licensed in
OR
In the registry since
2016
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

1255 Hilyard St
Eugene, OR 97401-3718
Phone: (541) 344-8757
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1515 Village Dr, Cottage Grove, OR 97424-9700 — (417) 675-5222

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 189587 (OR)
Physician Assistant Taxonomy 363A00000X · Licence PA189587 (OR)

Record details

NPI number1154879351
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA-C
Sole proprietorYes
NPI enumeratedSeptember 15, 2016
Last updated in NPPESSeptember 10, 2025
Certification dateSeptember 10, 2025

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients127
Services billed 146 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

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