Zachari C. O'Neill, PA-C
Physician Assistant · Portland, OR
Zachari C. O'Neill, PA-C is a physician assistant with a practice address in Portland, Oregon, and NPI 1649990409, issued on Aug 31, 2022. Check the license (Oregon PA227357, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Zachari C. O'Neill
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA227357 OR
PA3085 NV
Self-reported in NPPES; status is on the state search - Practice location
- 9427 SW Barnes RD Ste 495, Portland, OR 97225
- Phone
- (503) 962-1000
- Enumerated
- Aug 31, 2022
- Record last updated
- Dec 2, 2025
- Medicare enrollment
- Enrolled (PECOS I20241022001764); accepts Medicare assignment
- Medical or professional school
- Oregon Health Sciences University School Of Medicine, 2024
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 2,094 in Oregon → Look up another NPI →
Also registered at 9427 SW Barnes RD Ste 495
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ian Brooks, MDAnesthesiology Physician1710446745
- Christine Carey, PA-CPhysician Assistant1609394253
- Miguel Castaneda, PA-CPhysician Assistant1831899731
- Christopher Chien, M.D.Advanced Heart Failure and Transplant Cardiology Physician1477732535
- Rebecca Combs, PA-CPhysician Assistant1184074833
Verify Zachari C. O'Neill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Oregon board licenses this profession
Search for license PA227357Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Community Care Services LLCReno, NV
- Providence Health And Services OregonPortland, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Zachari C. O'Neill among 2,094 physician assistant records in Oregon
Zachari C. O'Neill, 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 2022, is newer than 78% of them.
- NPI issued2022 · 78% of these records are older, 17% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2024 · median 2017 among the 1,552 with a school on file
- 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).
Physician Assistant providers in Oregon
There are 2,094 physician assistant records in Oregon.
All 2,094 in Oregon → Every provider in Portland → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Alec Baker, PA-CPortland, OR 972251932158953
- Lisa Bauer, PA-CPortland, OR 972251356585186
- Sean Brown, PA-CPortland, OR 972251285969311
- Paul Deitering, PA-CPortland, OR 972251598701690
- Lawrence Denis, P.A.-C.Portland, OR 972251821102682
- Janis Denning, PACPortland, OR 972251295929198
- Jenny Hume, PA CPortland, OR 972251851387666
- Karen Jacobson, PA-CPortland, OR 972251588836654
Common questions
What is Zachari C. O'Neill, PA-C's NPI number?
Zachari C. O'Neill, PA-C's National Provider Identifier (NPI) is 1649990409, issued on Aug 31, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Zachari C. O'Neill, PA-C located?
The NPPES record lists a practice address at 9427 SW Barnes RD Ste 495, Portland, OR, 97225. Phone: (503) 962-1000. Providers update this record themselves, so call before visiting.
How can I verify Zachari C. O'Neill, PA-C's license?
NPPES lists Oregon license number PA227357, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity 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.