Active NPI
Costco Wholesale Corporation
Doing business as Costco Optical #99
- Eyewear Supplier
- Issaquah, WA
National Provider Identifier
1891679734
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Eyewear Supplier
- Legal business name
- COSTCO WHOLESALE CORPORATION
- Doing business as
- Costco Optical #99
- Practice address
- 999 Lake Dr
Issaquah, WA 98027-8990 - Phone
- (425) 313-8100
- NPI assigned
- Aug 4, 2025
- Organization subpart
- Yes
- Parent organization
- COSTCO WHOLESALE CORPORATION
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Erin Sieglock
- Title
- Avp Optical
- Phone
- (425) 313-8087
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Eyewear Supplier | 332H00000X | Primary |
Addresses
Primary practice location
999 Lake Dr
Issaquah, WA 98027-8990
Mailing address
PO Box 35005
Seattle, WA 98124-3405
Phone (425) 313-8100
Other names 1
- Costco Optical #99
National Provider Directory
National Provider Directory- Tax ID family
- Costco Pharmacy 302
- Part of
- Costco Pharmacy 302
Organizations with this tax ID in the same state 16
This tax ID family is large, so up to 24 of its organizations in the same state are linked here.
-
dba Costco Hearing Aid #1718
- Hearing Aid Equipment
- Richland, WA
- NPI 1689561078
-
dba Costco Hearing Aid #639
- Hearing Aid Equipment
- Sequim, WA
- NPI 1699169482
-
dba Costco Hearing Aid #103
- Hearing Aid Equipment
- Clarkston, WA
- NPI 1700270592
-
dba Costco Hearing Aid #1588
- Hearing Aid Equipment
- Lake Stevens, WA
- NPI 1780329169
-
dba Costco Hearing Aid #112
- Hearing Aid Equipment
- East Wenatchee, WA
- NPI 1790179588
-
dba Costco Hearing Aid #6
- Hearing Aid Equipment
- Tukwila, WA
- NPI 1861885733
-
dba Costco Hearing Aid #740
- Hearing Aid Equipment
- Lacey, WA
- NPI 1871987669
-
dba Costco Hearing Aid #95
- Hearing Aid Equipment
- Tacoma, WA
- NPI 1891189684
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1754265600000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1754265600000",
"number": "1891679734",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 35005",
"city": "SEATTLE",
"state": "WA",
"postal_code": "981243405",
"telephone_number": "425-313-8100"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "999 LAKE DR",
"city": "ISSAQUAH",
"state": "WA",
"postal_code": "980278990",
"telephone_number": "425-313-8100"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "COSTCO WHOLESALE CORPORATION",
"organizational_subpart": "YES",
"parent_organization_legal_business_name": "COSTCO WHOLESALE CORPORATION",
"enumeration_date": "2025-08-04",
"last_updated": "2025-08-04",
"certification_date": "2025-08-04",
"status": "A",
"authorized_official_last_name": "SIEGLOCK",
"authorized_official_first_name": "ERIN",
"authorized_official_title_or_position": "AVP OPTICAL",
"authorized_official_telephone_number": "425-313-8087"
},
"taxonomies": [
{
"code": "332H00000X",
"taxonomy_group": "",
"desc": "Eyewear Supplier",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"organization_name": "Costco Optical #99",
"code": "3",
"type": "Doing Business As"
}
]
}
Other providers in Issaquah, WA
- Costco Wholesale Corporation (Costco Hearing Aid #99)
- Costco Wholesale Corporation (Costco Optical #110)
- Costco Wholesale Corporation (Costco Hearing Aid #110)
- Costco Wholesale Corporation
- Costco Wholesale Corporation
- Emiliano Cota
- Cottrell Chiropractic PS
- Terry Willard Cottrell, D.C.
- Seth Carl Courrege, PHD
- Covington Comfort Dentistry
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 4, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.