Sonja Halvorson, PA-C
Physician Assistant · Eugene, OR
Sonja Halvorson, PA-C is a physician assistant with a practice address in Eugene, Oregon, and NPI 1154879351, issued on Sep 15, 2016. Check the license (Oregon 189587, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sonja Halvorson
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 189587 OR
PA189587 OR
Self-reported in NPPES; status is on the state search - Practice location
- 1255 Hilyard St, Eugene, OR 97401
- Phone
- (541) 344-8757
- Enumerated
- Sep 15, 2016
- Record last updated
- Sep 10, 2025
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,094 in Oregon → Look up another NPI →
Also registered at 1255 Hilyard St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brad Anderson, M.D.Emergency Medicine Physician1295757516
- James ArringtonMental Health Counselor1306078928
- Lindsey Bangert, DPT, PTPhysical Therapist1013700301
- Michael Barkman, M.D.Emergency Medicine Physician1508800657
- Brian Berg, M.D.Emergency Medicine Physician1992740237
- Kim Boring, R.N.Religious Nonmedical Nursing Personnel1932251865
Verify Sonja Halvorson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license 189587Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average physician assistant in 2024
102 Medicare Part D claims for 76 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 27 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen12 claims
- Cephalexin11 claims
- Oxycodone Hcl11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Sonja Halvorson among 2,094 physician assistant records in Oregon
Sonja Halvorson, PA-C is one of 2,094 physician assistant records with a practice address in Oregon. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 48% of them.
- NPI issued2016 · 48% of these records are older, 47% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2025 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
99 physician assistant records list a practice address in Eugene
They are 99 of the 8,239 NPPES records with a practice address in Eugene, and 2,094 physician assistant records in Oregon.
All 2,094 in Oregon → Every provider in Eugene → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Cheryl Bourgault, PA CEugene, OR 974011205823036
- Jeffrey Canter, PA-CEugene, OR 974011124091095
- Richard Cunliffe, PACEugene, OR 974011154330215
- Molly Emberlin, PAC, M.S.Eugene, OR 974011619048469
- Serena Luce, PA-CEugene, OR 974011821067489
- Leslie McStravick, PA-CEugene, OR 974011851305791
- Lisa Moeller, PA-CEugene, OR 974011881674323
- John Nelson, PAEugene, OR 974011588642433
Common questions
What is Sonja Halvorson, PA-C's NPI number?
Sonja Halvorson, PA-C's National Provider Identifier (NPI) is 1154879351, issued on Sep 15, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Sonja Halvorson, PA-C located?
The NPPES record lists a practice address at 1255 Hilyard St, Eugene, OR, 97401. Phone: (541) 344-8757. Providers update this record themselves, so call before visiting.
How can I verify Sonja Halvorson, PA-C's license?
NPPES lists Oregon license number 189587, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.
How much does Sonja Halvorson, PA-C prescribe under Medicare Part D?
In 2024, Sonja Halvorson, PA-C had 102 Medicare Part D claims for 76 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.