What is Joan Kosgei's NPI number?

Joan Kosgei's National Provider Identifier (NPI) is 1982311908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Joan Kosgei's specialty?

Joan Kosgei is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).

Where is Joan Kosgei located?

Joan Kosgei's practice location on file with NPPES is 163 Rogers Rd, Silverlake, WA 98645-9715.

What is Joan Kosgei's phone number?

The practice phone number listed in the NPPES registry for Joan Kosgei is (925) 350-9965.

Is Joan Kosgei's NPI active?

Yes — Joan Kosgei's NPI (1982311908) is active in the NPPES registry as of the last update on 2026-04-10.

IndividualActive

Joan Kosgei

NPI 1982311908 · Registered Nurse · Silverlake, WA

Joan Kosgei is a Registered Nurse provider in Silverlake, WA (NPI 1982311908).

Provider details

NPI number: 1982311908
Entity type: Individual
Primary specialty: Registered NurseNursing Service Providers
Sex: Female
Sole proprietor: Yes
License: RN61435659 (WA)

Specialties & taxonomies

Registered NursePrimary163W00000XLicense RN61435659 (WA)
Nursing Service Providers

Profile Score

Established profile(59/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
3 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

163 Rogers Rd

Silverlake, WA 98645-9715

Phone: (925) 350-9965

Fax: (360) 803-0003

Street-level locationGet directions

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Mailing address