GRETCHEN MARIE NONAWZKI DO
NPI 1871159392
Emergency Medicine in Portland, OR
About Gretchen Marie Nonawzki Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRETCHEN MARIE NONAWZKI DO (NPI 1871159392) is an individual emergency medicine provider in Portland, Oregon, licensed in Oregon (DO231305) and active in the NPI registry since May 2019. She is enrolled in Medicare PECOS and is a graduate of University Of New England, College Of Osteo Medicine (2019).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Gretchen Marie Nonawzki Do 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.
Medicare Billing Reassignment
Medicare enrollment records show Gretchen Nonawzki reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Vallejo, CA 94589
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
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 97239 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
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 Gretchen Nonawzki's NPI number?
The NPI number for Gretchen Nonawzki is 1871159392. It was assigned to this individual provider in the NPPES registry on May 10, 2019.
Where is Gretchen Nonawzki located?
Gretchen Nonawzki practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (503) 494-7551.
What is Gretchen Nonawzki's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Gretchen Nonawzki enrolled in Medicare?
Yes. Gretchen Nonawzki 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.
Which organization bills Medicare for Gretchen Nonawzki's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gretchen 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 Gretchen Nonawzki's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Gretchen Nonawzki was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 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.
# Gretchen Marie Nonawzki, DO · NPI 1871159392
Emergency Medicine physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since May 10, 2019.
## Identity
- **NPI:** 1871159392 (Entity type: Individual)
- **Enumerated:** May 10, 2019
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** DO231305 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 3181 SW SAM JACKSON PARK RD, Portland, OR 97239-3011
- **Phone:** (503) 494-7551
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1336222397, Vallejo, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of New England, College Of Osteo Medicine, class of 2019
## Record status
- **NPPES last updated:** October 21, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1871159392) · Data from the CMS NPPES public registry.