How to enroll
Getting started is easy. Find out when you can enroll in a Medicare Supplement (Medigap) plan and choose the enrollment option that works best for you.
When to enroll
You can purchase an Alliance Medicare Supplement plan at any time. The best time to purchase your policy is when you become eligible for Medicare and enroll in Medicare Part B.
Ways to enroll
There are several convenient ways to enroll in a Medicare Supplement (Medigap) plan.
Phone
Call our licensed agents at (888) 447-3850 (TTY: 711).
Representatives are available:
Oct. 1 – March 31, 8 a.m. to 8 p.m., Seven days a week
April 1 – Sept. 30, 8 a.m. to 8 p.m., Monday through Friday
At all other times, you may access our interactive voice recording system at the same number. Leave your name and phone number. A licensed agent will return your call the next business day. Please do not share personal health information when you leave a message.
Online
Complete and mail your enrollment form to:
Health Alliance Plan
Attn: Medicare Sales Division
1414 E Maple Rd
Troy, MI 48083
Forms
2026 Medicare Supplement enrollment form