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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. STEPHANIE ELIZABETH NONAWZKI DO
NPI 1285214601
Pediatrics in Portland, OR

Active since April 09, 2021PECOS Enrolled
501 N GRAHAM ST STE 250, PORTLAND, OR 97227(503) 413-2902 Get Directions Write a Review

NPPES record last updated: September 3, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 3, 2026, Jun 29, 2025, Apr 9, 2021 (3 updates tracked since 2021).

About Dr. Stephanie Elizabeth Nonawzki Do NPPES

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

DR. STEPHANIE ELIZABETH NONAWZKI DO (NPI 1285214601) is an individual pediatrics provider in Portland, Oregon, licensed in Oregon (DO231332) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS and maintains a secondary practice location in Vacaville.

NPPES Registry Identity

NPI1285214601
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. STEPHANIE ELIZABETH NONAWZKICredential: DO
Location Address501 N GRAHAM ST STE 250Portland, OR 97227-1651
Mailing Address5931 Filial StSacramento, CA 95835-2743 · (315) 748-0720
Phone(503) 413-2902
Sole ProprietorNo
Enumeration DateApril 9, 2021
Last NPPES UpdateSeptember 3, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2026
✔ NPI 1285214601 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in OR · DO231332✔ Licensed in CA · 20A23890
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
501 N GRAHAM ST STE 250, Portland, OR 97227
Open in Google Maps ↗

Secondary Practice Location 1

Location 11 Quality DrVacaville, CA 95688-9494 · Phone (707) 624-4300

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include PacificSource Health Plans.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Stephanie Elizabeth Nonawzki Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Stephanie Nonawzki reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
512 mi
Internal Medicine
975 SERENO DRIVE
Vallejo, CA 94589
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1336222397 (707) 651-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97227 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
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
Most-billed visit code 99214
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 5

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

RDC, LLC
Orthopaedic Surgery (Orthopaedic Trauma)
501 N GRAHAM ST STE 250
PORTLAND, OR 97227
Multnomah County (503) 249-0719
DR. MARY EULALIA MILLER MD
Pediatrics
501 N GRAHAM ST STE 250
PORTLAND, OR 97227
Multnomah County (503) 413-2902
MRS. KARI MICHELLE KOMLOFSKE FNP-C
Nurse Practitioner (Family)
501 N GRAHAM ST STE 250
PORTLAND, OR 97227
Multnomah County (503) 249-0719
DR. LACIE ELIZABETH TAYLOR DO
Pediatrics
501 N GRAHAM ST STE 250
PORTLAND, OR 97227
Multnomah County (503) 413-2902
CASSANDRA TOMCZAK, DPM PC
Podiatrist
501 N GRAHAM ST STE 250
PORTLAND, OR 97227
Multnomah County (503) 249-0719

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 Stephanie Nonawzki's NPI number?

The NPI number for Stephanie Nonawzki is 1285214601. It was assigned to this individual provider in the NPPES registry on April 9, 2021.

Where is Stephanie Nonawzki located?

Stephanie Nonawzki practices at 501 N Graham St Ste 250, Portland, OR 97227. The listed phone number is (503) 413-2902.

What is Stephanie Nonawzki's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Stephanie Nonawzki enrolled in Medicare?

Yes. Stephanie Nonawzki is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Stephanie Nonawzki's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Nonawzki reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stephanie Nonawzki's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephanie Nonawzki accept?

Health plans from PacificSource Health Plans list Stephanie Nonawzki as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Stephanie Nonawzki was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 50 days 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.