Contact Us

Blue Cross and Blue Shield of Montana Headquarters

3645 Alice Street
PO Box 7982
Helena, MT 59604-7982

1-800-253-4091 (TTY)

Note: For medical emergencies, call 911 or your physician first.

Office Hours:

Telephone: 8 a.m. – 6 p.m., Monday – Friday
Walk in: 8 a.m. – 5 p.m., Monday – Friday

Make a Payment

Mail your payment to the address on your premium invoice or learn about other convenient ways to pay your bill.

Product and Program Contact Information

If you are a member with a question about your coverage, please contact Customer Service or a specific department listed on your member ID card or on this page:

Medicare Plans

Medicare Advantage Members: 1-877-774-8592 (TTY 711)

Medicare Supplement Members: 1-855-520-1577 (TTY 711)

Medicare Plan Enrollment Information: 1-866-940-3022 (TTY 711)

Last Updated: Feb. 27, 2023