Contact Us


Sterling Insurance is dedicated to meeting your needs and addressing any questions, comments or concerns you may have – it’s all part of our “Real People” service. Choose from one of the options below and a specially-trained representative will gladly assist you.

Please fill out this form completely. A Sterling team member will contact you in a timely manner to address your question or concern.

Sterling Customer Service hours are Monday – Friday, 5 a.m. – 5 p.m. Pacific Time. To reach our Customer Service Center after hours, please use our online form to contact us.
General Customer Service PH 1-800-688-0010 Fax 1-360-392-9100
TTY/TDD Users PH 711 Fax N/A
Prospective Members PH 1-877-906-0926 Fax N/A
Medicare Supplement PH 1-800-688-0010 Fax 1-360-392-9100
Sterling Whole Life PH 1-800-489-1390 Fax 1-203-757-1227
Sterling Critical Condition PH 1-877-639-3468 Fax 1-781-893-6905
  (For CO, WI & IN only) PH 1-800-603-9438
Sterling Dental PH 1-800-228-6790 Fax1-602-906-4745
Silver&Fit ® PH 1-877-427-4788
Silver&Fit Affinity ® PH 1-877-808-2746
TTY/TDD - Silver&Fit ® PH 1-877-710-2746
Nurse Advice Line PH 1-888-858-8576
Providers PH 1-888-906-6221
A Note about Member Confidentiality:             

Sterling adheres to the Health Insurance and Portability and Accountability Act of 1996 (HIPAA) requirements and considers member information confidential. We adhere to the most stringent state and federal guidelines in handling and storing information. As a provider, you may call Sterling to inquire about benefits or claims status. To be sure that all callers, including providers, are eligible to discuss Protected Health Information (PHI), our call center representatives will request a few data elements for verification:

         Name
         Medicare Number
         Member Number
         Birth Date
         Address
         Phone Number

For Customer Service or general inquiry phone and fax numbers, please see the Phone/Fax section above

Sterling Medicare Supplement Customer Service and Claims Information:

Mail Paper Claims to:    

Sterling Medicare Supplement
P.O. Box 5348
Bellingham, WA 98227-5348
Provider Customer Service:     PH 1-888-906-6221
To contact Sterling or to submit documentation by USPS mail, please use the address below.


For Medicare Supplement, Sterling Premier Medicare Supplement, or Sterling Medicare Select

Sterling Life Insurance Company
P.O. Box 5348
Bellingham, WA 98227-5348


For overnight mail services like FedEx and UPS, please use our physical address:

Sterling Life Insurance Company
2219 Rimland Drive
Bellingham, WA 98226
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Copyright © 2015 Sterling Insurance
Underwritten by Sterling Life Insurance Company
Last Updated: 3/24/2015