SARAH MARYELLEN FOSTER ARNP, DNP
NPI 1669940987
Nurse Practitioner - Psychiatric/Mental Health in Edmonds, WA
About Sarah Maryellen Foster Arnp, Dnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SARAH MARYELLEN FOSTER ARNP, DNP (NPI 1669940987) is an individual psychiatric/mental health provider in Edmonds, Washington, licensed in Washington (AP61474445) and active in the NPI registry since November 2018. She is enrolled in Medicare PECOS, is affiliated with Swedish Edmonds Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
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 and accepts Medicare assignment
Sarah Maryellen Foster Arnp, Dnp 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
4Medicare enrollment records show Sarah Foster reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mukilteo, WA 98275
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: Providence Health & Services- Washington
- 705 clinicians in this Medicare group
Everett, WA 98201
- Reassigned Medicare billing, Washington enrollment
- 135 clinicians in this Medicare group
Seattle, WA 98101
- Reassigned Medicare billing, Washington enrollment
- 663 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 1,270 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
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Swedish Edmonds Hospital
Acute Care Hospitals · Edmonds, WASwedish Medical Center
Acute Care Hospitals · Seattle, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98026 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.
EDMONDS, WA 98026
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 Sarah Foster's NPI number?
The NPI number for Sarah Foster is 1669940987. It was assigned to this individual provider in the NPPES registry on November 5, 2018.
Where is Sarah Foster located?
Sarah Foster practices at 21601 76th Ave W, Edmonds, WA 98026. The listed phone number is (425) 640-4981.
What is Sarah Foster's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Sarah Foster enrolled in Medicare?
Yes. Sarah Foster 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 Sarah Foster's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sarah Foster reassigns Medicare benefits to 4 organizations: Providence Health & Services - Wa (Mukilteo, WA), Providence Health & Services-Wa (Everett, WA), Swedish Health Services (Seattle, WA) and Swedish Health Services (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 Sarah Foster's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sarah Foster accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Sarah Foster 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 Sarah Foster affiliated with any hospitals?
According to CMS data, Sarah Foster is affiliated with Swedish Edmonds Hospital and Swedish Medical Center.
When was this NPI record last updated?
The NPPES record for Sarah Foster was last updated on October 5, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Sarah Maryellen Foster, ARNP, DNP · NPI 1669940987
Psychiatric/Mental Health physician in Edmonds, Washington. Individual provider, active in the CMS NPPES registry since November 5, 2018.
## Identity
- **NPI:** 1669940987 (Entity type: Individual)
- **Enumerated:** November 5, 2018
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** AP61474445 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 21601 76TH AVE W, Edmonds, WA 98026-7507
- **Phone:** (425) 640-4981
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Providence Health & Services - Wa (NPI 1003050709, Mukilteo, WA); Providence Health & Services-Wa (NPI 1972819175, Everett, WA); Swedish Health Services (NPI 1073553947, Seattle, WA); Swedish Health Services (NPI 1689612954, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** October 5, 2023
- **Other identifiers:** Medicaid 2119240 (WA)
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Source: [NPI Profile](https://npiprofile.com/npi/1669940987) · Data from the CMS NPPES public registry.