Employer Contacts

  • Premera offices will be closed on Monday, May 30 for Memorial Day.
  • Group sales

    Western Washington, Yakima and Klickitat Counties

    Eastern Washington and Northern Idaho

    Technical web site help

    Weekdays, 6 am to 6 pm, Pacific Time

    Have you visited our help pages to trouble-shoot common issues such as password recovery?

    Contact a specific department

    Customer Service:

    Long Term Care:

    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

    Map and Directions 
    Map of Premera's Mountlake Terrace Campus

    Eastern Washington
    Premera Blue Cross

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

    Map and Directions
    Map of Premera in Spokane