KATHERINE L BYRON ARNP
NPI 1255469284
Nurse Practitioner in Everett, WA
About Katherine L Byron Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE L BYRON ARNP (NPI 1255469284) is an individual nurse practitioner in Everett, Washington, licensed in Washington (AP30007464) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS, is affiliated with Sanford Medical Center Fargo, and is a graduate of Other (2005).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
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
Katherine L Byron 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 Katherine Byron reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- 1,285 clinicians in this Medicare group
Ellendale, ND 58436
- Reassigned Medicare billing, North Dakota enrollment
- 1,464 clinicians in this Medicare group
Hillsboro, ND 58045
- Reassigned Medicare billing, Minnesota enrollment
- 219 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sanford Medical Center Fargo
Acute Care Hospitals · Fargo, NDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98201 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.
EVERETT, WA 98201
EVERETT, WA 98201
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 Katherine Byron's NPI number?
The NPI number for Katherine Byron is 1255469284. It was assigned to this individual provider in the NPPES registry on March 1, 2007.
Where is Katherine Byron located?
Katherine Byron practices at 1330 Rockefeller Ave Ste 310, Everett, WA 98201. The listed phone number is (425) 261-4925.
What is Katherine Byron's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Katherine Byron enrolled in Medicare?
Yes. Katherine Byron 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 Katherine Byron's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Byron reassigns Medicare benefits to 3 organizations: Optum Care Washington PLLC (Everett, WA), Sanford Medical Center Fargo (Ellendale, ND) and Sanford Health Network North (Hillsboro, ND). 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 Katherine Byron's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Katherine Byron accept?
Health plans from Blue Cross Blue Shield of North Dakota, Medica, Sanford Health Plan and Security Health Plan list Katherine Byron 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.
Is Katherine Byron affiliated with any hospitals?
According to CMS data, Katherine Byron is affiliated with Sanford Medical Center Fargo.
When was this NPI record last updated?
The NPPES record for Katherine Byron was last updated on May 22, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years 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.
# Katherine L Byron, ARNP · NPI 1255469284
Nurse Practitioner physician in Everett, Washington. Individual provider, active in the CMS NPPES registry since March 1, 2007.
## Identity
- **NPI:** 1255469284 (Entity type: Individual)
- **Enumerated:** March 1, 2007
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** AP30007464 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1330 ROCKEFELLER AVE, STE 310, Everett, WA 98201-1684
- **Phone:** (425) 261-4925 · **Fax:** (425) 261-4932
## 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): Optum Care Washington PLLC (NPI 1831186766, Everett, WA); Sanford Medical Center Fargo (NPI 1346256682, Ellendale, ND); Sanford Health Network North (NPI 1265464259, Hillsboro, ND) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** May 22, 2015
- **Other identifiers:** Other AP30007464 (WA); Medicare UPIN G8937151 (WA); Medicaid 1006178 (WA); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1255469284) · Data from the CMS NPPES public registry.