Medicare
Contact Us
Whether you need help shopping for a plan, or already are a Medicare member and need help with your benefits, we’re here for you.
Contact a Medicare Plan Specialist
If you have questions prior to enrolling, reach out to one of our sales representatives for help with your Blue Cross and Blue Shield of Montana Medicare Options℠ plan:
- Call us at 1-866-940-3022 (TTY: 711).
- We’re open between 8:00 a.m. – 8:00 p.m., local time, 7 days a week.
- If you’re calling from April 1 through September 30, voicemail will be used on the weekends and holidays.
Speak With a Member Advocate
Do you need to verify your recent enrollment in a Blue Cross and Blue Shield of Montana Medicare Options plan? Are you already enrolled and want to check the status of a claim or ask questions about your existing coverage?
Call Customer Service at the phone numbers below for these answers and other important needs.
Blue Cross Medicare Advantage℠ Plans
Blue Medicare Supplement℠ Insurance Plans Customer Service
Phone
1-855-520-1577 (TTY: 711)
Hours
We’re open 7:00 a.m. – 6:00 p.m., CST, Monday through Friday.
Mailing Address
Blue Medicare Supplement Insurance Plan
1000 E. Warrenville Road
Naperville, IL 60563
Blue Cross Group Medicare Options℠ Plans Member Services
If you are retiring soon, talk with your human resources department or benefits administrator about Medicare options available through your employer or union.
If you are a retiree group Medicare plan member and need assistance with recent enrollment, the status of a claim, or have questions, call the Customer Service number listed on your member ID card.
We’re open between 8:00 a.m. – 8:00 p.m., local time, 7 days a week. If you’re calling from April 1 through September 30, voicemail will be used on the weekends and holidays.
Medicare Contact Information
You can contact the U.S. Centers for Medicare and Medicaid Services (CMS) for more information about Medicare benefits and services, including general information about Medicare Advantage Prescription Drug coverage.
Phone
1-800-MEDICARE (1-800-633-4227)
24 hours a day, 7 days a week
If you are hearing or speech impaired, call 1-877-486-2048
More Ways to Contact CMS
If you would like to submit feedback directly to the U.S. Centers for Medicare and Medicaid Services, please use the Medicare Complaint Form contact the Office of the Medicare Ombudsman