MRS. KAREN ELIZABETH ROOT ARNP
NPI 1174949507
Nurse Practitioner - Neonatal, Critical Care in Seattle, WA
About Mrs. Karen Elizabeth Root Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. KAREN ELIZABETH ROOT ARNP (NPI 1174949507) is an individual neonatal, critical care provider in Seattle, Washington, licensed in Washington (AP61285445) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS and maintains a secondary practice location in Charlottesville.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mrs. Karen Elizabeth Root Arnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Karen Root reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 clinicians in this Medicare group
Charlottesville, VA 22911
- Reassigned Medicare billing, Virginia enrollment
- 2,820 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 98195 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 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
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 Karen Root's NPI number?
The NPI number for Karen Root is 1174949507. It was assigned to this individual provider in the NPPES registry on March 10, 2014.
Where is Karen Root located?
Karen Root practices at 1959 NE Pacific St, Seattle, WA 98195. The listed phone number is (206) 520-5000.
What is Karen Root's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Neonatal, Critical Care, with taxonomy code 363LN0005X.
Is Karen Root enrolled in Medicare?
Yes. Karen Root is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Karen Root's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Root reassigns Medicare benefits to 2 organizations: The Association Of University Physicians (Seattle, WA) and University Of Virginia Physicians Group (Charlottesville, VA). 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 Karen Root's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karen Root accept?
Health plans from Premera Blue Cross Blue Shield of Alaska list Karen Root 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 Karen Root was last updated on June 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Mrs. Karen Elizabeth Root, ARNP · NPI 1174949507
Neonatal, Critical Care physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since March 10, 2014.
## Identity
- **NPI:** 1174949507 (Entity type: Individual)
- **Enumerated:** March 10, 2014
- **Primary specialty:** Nurse Practitioner - Neonatal, Critical Care · taxonomy 363LN0005X
- **State license:** AP61285445 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1959 NE PACIFIC ST, Seattle, WA 98195-0816
- **Phone:** (206) 520-5000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): The Association Of University Physicians (NPI 1023041159, Seattle, WA); University Of Virginia Physicians Group (NPI 1033138250, Charlottesville, VA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 8, 2022
- **Other identifiers:** Medicaid 1174949507 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1174949507) · Data from the CMS NPPES public registry.