ZACHARI C O'NEILL PA-C
NPI 1649990409
Physician Assistant in Portland, OR

Active since August 31, 2022PECOS EnrolledAccepts Medicare Assignment
9427 SW BARNES RD STE 495, PORTLAND, OR 97225(503) 962-1000 Get Directions Write a Review

NPPES record last updated: December 2, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 2, 2025, Aug 31, 2022 (2 updates tracked since 2022).

About Zachari C O'neill Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ZACHARI C O'NEILL PA-C (NPI 1649990409) is an individual physician assistant in Portland, Oregon, licensed in Oregon (PA227357) and active in the NPI registry since August 2022. He is enrolled in Medicare PECOS, is affiliated with Renown Regional Medical Center, and is a graduate of Oregon Health Sciences University School Of Medicine (2024).

NPPES Registry Identity

NPI1649990409
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameZACHARI C O'NEILLCredential: PA-C
Location Address9427 SW BARNES RD STE 495Portland, OR 97225-6612
Mailing Address9427 Sw Barnes Rd Ste 495Portland, OR 97225-6612
Sole ProprietorNo
Medical School CMSOregon Health Sciences University School Of MedicineGraduated 2024
Enumeration DateAugust 31, 2022
Last NPPES UpdateDecember 2, 20252 updates tracked since enumeration
NPPES CertifiedDecember 2, 2025
NPI 1649990409 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in OR · PA227357
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Also ListedPhysician Assistant · MedicalTaxonomy 363AM0700X · License PA3085 (NV)
9427 SW BARNES RD STE 495, Portland, OR 97225

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Zachari C O'neill Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2163954694
PECOS Enrollment IDI20241022001764, I20251119004137
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Renown Regional Medical Center

Acute Care Hospitals · Reno, NV
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number290001
Location1155 Mill StreetReno, NV 89502 · Washoe County
Emergency services Birthing friendly

Renown South Meadows Medical Center

Acute Care Hospitals · Reno, NV
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number290049
Location10101 Double R BlvdReno, NV 89521 · Washoe County
Emergency services

Providence St Vincent Medical Center

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380004
Location9205 SW Barnes RoadPortland, OR 97225 · Washington County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97225 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.51 typical visit price
range $58.99 – $176.88
Typical copayment $22.62 (range $14.74 – $44.22)
Most-billed visit code 99203
Established Patient
$73.28 typical visit price
range $19.32 – $144.79
Typical copayment $18.32 (range $4.83 – $36.19)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Interventional Cardiology)
9427 SW BARNES RD STE 495
PORTLAND, OR 97225
Nurse Practitioner (Acute Care)
9427 SW BARNES RD STE 495
PORTLAND, OR 97225
Internal Medicine (Advanced Heart Failure and Transplant Cardiology)
9427 SW BARNES RD STE 495
PORTLAND, OR 97225
Internal Medicine (Interventional Cardiology)
9427 SW BARNES RD STE 495
PORTLAND, OR 97225
Physician Assistant
9427 SW BARNES RD STE 495
PORTLAND, OR 97225
Physician Assistant
9427 SW BARNES RD STE 495
PORTLAND, OR 97225
Internal Medicine (Cardiovascular Disease)
9427 SW BARNES RD STE 495
PORTLAND, OR 97225
Physician Assistant
9427 SW BARNES RD STE 495
PORTLAND, OR 97225

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Zachari O'neill's NPI number?

The NPI number for Zachari O'neill is 1649990409. It was assigned to this individual provider in the NPPES registry on August 31, 2022.

Where is Zachari O'neill located?

Zachari O'neill practices at 9427 SW Barnes Rd Ste 495, Portland, OR 97225. The listed phone number is (503) 962-1000.

What is Zachari O'neill's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Zachari O'neill enrolled in Medicare?

Yes. Zachari O'neill is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Zachari O'neill affiliated with any hospitals?

According to CMS data, Zachari O'neill is affiliated with Renown Regional Medical Center, Renown South Meadows Medical Center and Providence St Vincent Medical Center.

When was this NPI record last updated?

The NPPES record for Zachari O'neill was last updated on December 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.