RUTH MARIE FOSTER KOTH MSW
NPI 1689835712
Social Worker - Clinical in Seattle, WA
About Ruth Marie Foster Koth Msw NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RUTH MARIE FOSTER KOTH MSW (NPI 1689835712) is an individual clinical provider in Seattle, Washington, licensed in Washington (LW60125310) and active in the NPI registry since June 2008. She is enrolled in Medicare PECOS and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Ruth Marie Foster Koth Msw 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
2Medicare enrollment records show Ruth Foster Koth reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98133
- Reassigned Medicare billing, Washington enrollment
- 274 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 98133 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SEATTLE, WA 98133
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 Ruth Foster Koth's NPI number?
The NPI number for Ruth Foster Koth is 1689835712. It was assigned to this individual provider in the NPPES registry on June 20, 2008. The provider is also known as Ruth Marie Foster.
Where is Ruth Foster Koth located?
Ruth Foster Koth practices at 11011 Meridian Ave N Ste 101, Seattle, WA 98133. The listed phone number is (206) 598-2274.
What is Ruth Foster Koth's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Ruth Foster Koth enrolled in Medicare?
Yes. Ruth Foster Koth 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 Ruth Foster Koth's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ruth Foster Koth reassigns Medicare benefits to 2 organizations: University Of Washington (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 Ruth Foster Koth's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ruth Foster Koth accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Ruth Foster Koth 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 Ruth Foster Koth was last updated on August 23, 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.
# Ruth Marie Foster Koth, MSW · NPI 1689835712
Clinical provider in Seattle, Washington. Individual provider, active in the CMS NPPES registry since June 20, 2008.
## Identity
- **NPI:** 1689835712 (Entity type: Individual)
- **Enumerated:** June 20, 2008
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** LW60125310 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 11011 MERIDIAN AVE N STE 101, Seattle, WA 98133-8967
- **Phone:** (206) 598-2274
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): University Of Washington (NPI 1487517157, Seattle, WA); The Association Of University Physicians (NPI 1023041159, Seattle, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** August 23, 2023
---
Source: [NPI Profile](https://npiprofile.com/npi/1689835712) · Data from the CMS NPPES public registry.