[Skip to Content]

How to enroll in Medicare in Missouri  

Applying for Medicare is easy

If you’re enrolled in Medicare, you can add a Medicare Advantage plan at certain times during the year. If you haven’t enrolled in Medicare, learn more about the initial enrollment period (IEP), the seven-month window you have when you're turning 65.


There are 3 periods each year when you can apply for a Medicare Advantage plan 

EPP timeline

Annual Enrollment Period (AEP)

October 15 to December 7

AEP is a window of time when you can add, drop or switch
Medicare plans.

Medicare Advantage Open Enrollment Period

January 1 to March 31

During this time, you can switch or drop your existing Medicare Advantage plan. You must already have a Medicare Advantage plan to use this enrollment period.

If you have special circumstances, you might be able to apply outside of these enrollment windows. Keep reading for more about the Special Enrollment Period.

Talk to an experienced advisor about what you need or see if Healthy Blue Missouri is available in your county.

Call: 1-800-760-4350 (TTY: 711) 7 days a week 8 a.m. to 8 p.m.

Shop Plans  
three ladies using cell phone

The Special Enrollment Period (SEP)

This is an additional window of time, outside of Annual Enrollment, when you can switch or join plans because of life changes, such as losing coverage or moving.

Some situations that apply

  • You move to a new address. If there are new plans to consider, you can switch, even if your plan covers the area to which you moved.
  •  Your current plan is no longer available.
  •  You qualify for both Medicare and Medicaid and can now enroll in a Dual Eligible Special Needs Plan (D-SNP)