MS. KAREN L SPORN ARNP
NPI 1801160734
Nurse Practitioner - Family in Seattle, WA
About Ms. Karen L Sporn Arnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. KAREN L SPORN ARNP (NPI 1801160734) is an individual family provider in Seattle, Washington, licensed in Washington (AP60259244) and active in the NPI registry since February 2012. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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)
Ms. Karen L Sporn Arnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Karen Sporn reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98105
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: Seattle Childrens Hospital
- 912 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 98105 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 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SEATTLE, WA 98105
SEATTLE, WA 98105
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 Sporn's NPI number?
The NPI number for Karen Sporn is 1801160734. It was assigned to this individual provider in the NPPES registry on February 23, 2012.
Where is Karen Sporn located?
Karen Sporn practices at 4909 25th Ave NE Suite 120, Seattle, WA 98105. The listed phone number is (206) 987-7977.
What is Karen Sporn's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Karen Sporn enrolled in Medicare?
Yes. Karen Sporn is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Karen Sporn's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Sporn reassigns Medicare benefits to Seattle Children's Hospital (Seattle, WA). 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 Karen Sporn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karen Sporn accept?
Health plans from Ambetter Health, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Karen Sporn 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 Sporn was last updated on February 23, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Ms. Karen L Sporn, ARNP · NPI 1801160734
Family physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since February 23, 2012.
## Identity
- **NPI:** 1801160734 (Entity type: Individual)
- **Enumerated:** February 23, 2012
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** AP60259244 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 4909 25TH AVE NE, SUITE 120, Seattle, WA 98105-4107
- **Phone:** (206) 987-7977 · **Fax:** (206) 987-8081
## 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:** Seattle Children's Hospital (NPI 1003319500, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 23, 2012
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Source: [NPI Profile](https://npiprofile.com/npi/1801160734) · Data from the CMS NPPES public registry.