What is Costco Wholesale Corporation's NPI number?

Costco Wholesale Corporation's National Provider Identifier (NPI) is 1992678171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What type of organization is Costco Wholesale Corporation?

Costco Wholesale Corporation is classified in the NPPES registry as Mail Order Pharmacy (Suppliers).

Where is Costco Wholesale Corporation located?

Costco Wholesale Corporation's practice location on file with NPPES is 6801 Seaway Blvd Ste A-1, Everett, WA 98203-5833.

What is Costco Wholesale Corporation's phone number?

The practice phone number listed in the NPPES registry for Costco Wholesale Corporation is (800) 607-6861.

Who is the authorized official for Costco Wholesale Corporation?

The authorized official listed on Costco Wholesale Corporation's NPPES record is Karen Kaster, Pharmacy Services Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.

Is Costco Wholesale Corporation's NPI active?

Yes — Costco Wholesale Corporation's NPI (1992678171) is active in the NPPES registry as of the last update on 2025-09-25.

OrganizationActive

Costco Wholesale Corporation

NPI 1992678171 · Mail Order Pharmacy · Everett, WA

Costco Wholesale Corporation is a Mail Order Pharmacy organization in Everett, WA (NPI 1992678171).

Provider details

NPI number: 1992678171
Entity type: Organization
Primary specialty: Mail Order PharmacySuppliers
Parent organization: Costco Wholesale Corporation
Organization subpart: Yes
Authorized official: Karen Kaster, Pharmacy Services Manager(425) 416-1294

Practice location

6801 Seaway Blvd Ste A-1

Everett, WA 98203-5833

Phone: (800) 607-6861

Fax: (800) 633-0334

Street-level locationGet directions

More WA providers

Mailing address

Po Box 34300

Seattle, WA 98124-1300

Specialties & taxonomies

Mail Order PharmacyPrimary3336M0002X
Suppliers

Other names (DBA / former)

Doing business as: Costco Pharmacy #1749 Central Fill

Profile Score

Established profile(55/100 index)

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

Registry tenure38% of score
1 yr 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.

Enumerated: 2025-09-24
Last updated: 2025-09-25
Certified: 2025-09-25

Frequently asked questions

What is Costco Wholesale Corporation's NPI number?: Costco Wholesale Corporation's National Provider Identifier (NPI) is 1992678171, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What type of organization is Costco Wholesale Corporation?: Costco Wholesale Corporation is classified in the NPPES registry as Mail Order Pharmacy (Suppliers).
Where is Costco Wholesale Corporation located?: Costco Wholesale Corporation's practice location on file with NPPES is 6801 Seaway Blvd Ste A-1, Everett, WA 98203-5833.
What is Costco Wholesale Corporation's phone number?: The practice phone number listed in the NPPES registry for Costco Wholesale Corporation is (800) 607-6861.
Who is the authorized official for Costco Wholesale Corporation?: The authorized official listed on Costco Wholesale Corporation's NPPES record is Karen Kaster, Pharmacy Services Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
Is Costco Wholesale Corporation's NPI active?: Yes — Costco Wholesale Corporation's NPI (1992678171) is active in the NPPES registry as of the last update on 2025-09-25.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Other names (DBA / former)

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Other names (DBA / former)

Profile Score

Frequently asked questions