Customer Service


Sterling Address Information
The following are Sterling Addresses appropriate for mailing correspondence and/or information requests. Upon receipt, your request will be processed immediately at our Customer Service Center and you will receive a response shortly thereafter. If your request requires immediate attention, you may submit a request via our Contact Us page or you may call one of our toll-free Sterling phone numbers.

Sterling Mail Addresses
Sterling Option I Sterling Option I®
P.O. Box 1917
Bellingham, WA 98227-1917
Sterling Option IISM Sterling Option IISM
P.O. Box 1917
Bellingham, WA 98227-1917
Sterling Premier® Medicare Supplement Sterling Premier
P.O. Box 5348
Bellingham, WA 98227-5348
Sterling Medicare Select Sterling Medicare Select
P.O. Box 5348
Bellingham, WA 98227-5348
Sterling Group Services Sterling Group Services
P.O. Box 5348
Bellingham, WA 98227-5348
Sterling Life Sterling Life
P.O. Box 5348
Bellingham, WA 98227-5348
Sterling Discount Rx Sterling Discount Rx
P.O. Box 5348
Bellingham, WA 98227-5348
Sterling Partners ®- Montana Sterling Partners ®- Montana
P.O. Box 1917
Bellingham, WA 98227-1917
Sterling Partners ®- Pennsylvania Sterling Partners ®- Pennsylvania
P.O. Box 1917
Bellingham, WA 98227-1917
Sterling RxSM & Rx PlusSM Sterling Prescription Drug Plan
P.O. Box 280200
Nashville, TN 37228
SilverScript SilverScript
P.O. Box 280200
Nashville, TN 37228


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