Mail-order pharmacy
1-800-245-7979 (TTY 711), Monday through Friday, 7:30 a.m. to 7 p.m., Saturday and Sunday, 8 a.m. to 4:30 p.m.
Part D Rx claims processing
Mail request for payment of Part D drugs together with any bills or receipts to us at this address:
Optum Rx
P.O. Box 650287
Dallas, TX 75265-0287
Premium payment options
Mail:
Kaiser Foundation Health Plan of Washington
P.O. Box 740008
Los Angeles, CA 90074-0008
Online:
kp.org/wa/mypremium
Phone:
1-844-632-2045 (24/7)
1-866-537-6133 (Monday through Friday, 8 a.m. to 8 p.m.)
Medical claims processing
Mail requests for payment of medical care together with any bills or paid receipts to us at this address:
Kaiser Permanente
P.O. Box 30766
Salt Lake City, UT 84130-0766
Appeals for medical care or Part D prescription drugs
Kaiser Permanente
Medicare Appeals Coordinator
P.O. Box 34593
Seattle, WA 98124-1593