KATHARINE AVERY MCKENZIE ARNP
NPI 1548607609
Nurse Practitioner - Family in Seattle, WA
About Katharine Avery Mckenzie Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHARINE AVERY MCKENZIE ARNP (NPI 1548607609) is an individual family provider in Seattle, Washington, licensed in Washington (AP60337640) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Katharine Avery Mckenzie Arnp 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 Reassignments
3Medicare enrollment records show Katharine Mckenzie reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98109
- Reassigned Medicare billing, Washington enrollment
- 2,678 clinicians in this Medicare group
Seattle, WA 98121
- Reassigned Medicare billing, Washington enrollment
- 292 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 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 98109 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.
SEATTLE, WA 98109
SEATTLE, WA 98109
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 Katharine Mckenzie's NPI number?
The NPI number for Katharine Mckenzie is 1548607609. It was assigned to this individual provider in the NPPES registry on May 30, 2013.
Where is Katharine Mckenzie located?
Katharine Mckenzie practices at 825 Eastlake Ave E, Seattle, WA 98109. The listed phone number is (206) 520-5000.
What is Katharine Mckenzie's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Katharine Mckenzie enrolled in Medicare?
Yes. Katharine Mckenzie 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 organizations bill Medicare for Katharine Mckenzie's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katharine Mckenzie reassigns Medicare benefits to 3 organizations: Kaiser Foundation Health Plan Of Washington (Seattle, WA), Neighborcare Health (Seattle, WA) and The Association Of University Physicians (Seattle, WA). Each 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 Katharine Mckenzie's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katharine Mckenzie accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Katharine Mckenzie 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 Katharine Mckenzie was last updated on February 2, 2026. 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.
# Katharine Avery Mckenzie, ARNP · NPI 1548607609
Family physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since May 30, 2013.
## Identity
- **NPI:** 1548607609 (Entity type: Individual)
- **Enumerated:** May 30, 2013
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** AP60337640 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 825 EASTLAKE AVE E, Seattle, WA 98109-4405
- **Phone:** (206) 520-5000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Kaiser Foundation Health Plan Of Washington (NPI 1396810701, Seattle, WA); Neighborcare Health (NPI 1578028866, Seattle, WA); The Association Of University Physicians (NPI 1023041159, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** February 2, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1548607609) · Data from the CMS NPPES public registry.