Health Care Authority Contact Information

  • Call our concierge desk at 855-784-4563  (TRS: 711), weekdays, 7 a.m. to 5 p.m. Pacific Time.

    You may send faxes to our secure inbound fax at 425-918-5592.

    You may write to us at:
    Premera Blue Cross
    PO Box 91059
    Seattle, WA 98111-9159

    For appeals:
    Premera Blue Cross
    ATTN: Appeals Department
    PO Box 91102
    Seattle, WA 98111-9102