Employer Contacts

  • Group sales

    Western Washington, Yakima and Klickitat Counties

    Eastern Washington and Northern Idaho

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    Weekdays, 6 am to 6 pm, Pacific Time

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    Contact a specific department

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    Claims submission

    Premera Blue Cross
    P.O. Box 91059
    Seattle, WA 98111-9159


    Premera Blue Cross
    Attention: Payment Processing
    P. O. Box 91060
    Seattle, WA 98111-9160

    Corporate offices

    Western Washington
    Premera Blue Cross

    7001 - 220th St. SW, Building 1
    Mountlake Terrace, WA 98043
    Open weekdays, 8 am to 5 pm

    Eastern Washington
    Premera Blue Cross

    3900 East Sprague, Building 1
    Spokane, WA 99202
    Open weekdays, 8 am to 5 pm