When you change or switch to a new Medicare Part D prescription drug plan,
you do not
need to contact or cancel your old Medicare plan.
Your old or existing Medicare Part D plan will be automatically contacted when you enroll in
a new Part D plan or Medicare Advantage plan.
The coordination of the cancellation of your old plan and the start of your new plan will
be handled between Medicare and the Medicare Part D plan providers.
If you are enrolled in a 2021 Humana Medicare Part D plan and
join a 2022 Aetna Medicare Part D plan, you do not need to contact Humana about the change.
Humana will be automatically informed that you are now enrolled into another 2022 prescription
When will my new Medicare Part D plan begin?
If you switch plans during the Fall annual Open Enrollment Period or
Annual Coordinated Election Period or Annual Enrollment Period (AEP) running from
October 15 to December 7 of each year, your old Medicare Part D prescription drug coverage
will end on December 31st and your new prescription drug coverage will begin January 1st.
If you are allowed to join a Medicare Part D plan outside of the AEP, your new Medicare Part D plan
or Medicare Advantage plan will start or become effective the first day of the month after
If you enroll on June 2, your new Medicare Part D plan
will start on July 1.
Is it possible that I will receive new membership information from both my old and new plan?
Sometimes when you change Medicare plans you will receive a Member ID
from both your old plan and your newly chosen Medicare plan.
Receiving more than one "Welcome to our plan" letters can happen if you enroll into a new
Medicare plan late in the AEP (such as on December 6th) - or if there is an internal computer
error causing a slight delay when processing your new enrollment. In such a situation,
your old Medicare Part D plan may not be notified of your change before January 1 and may
still mail you a new Member ID card and "Welcome" Package for the new plan year - and you
will also receive a similar mailing of a Member ID card from your newly chosen Medicare
Part D plan.
You will not be able to use both prescription drug plans or Medicare Advantage plans at the
same time and instead, you should find that the Member ID card from your old Medicare plan
is no longer valid.
If you were enrolled in an 2021 Aetna Medicare Part D plan
and, on December 6th you enrolled into a 2022 Humana Medicare Part D plan, you may
receive new 2022 Member IDs or "Welcome" information from both Humana and Aetna. But,
only your newly chosen plan from 2022 Humana plan will be effective starting January 1st, 2022.
How should you avoid any problems or confusion when changing Medicare plans?
Don't wait too long before enrolling in your newly chosen plan.
that if you are changing Medicare Part D or Medicare Advantage plans, please try to complete
your enrollment before the last week of the AEP (before December 1 through December 7)
and instead, enroll earlier, such as in mid-November, so that your new enrollment application
can be processed before December 7th and you will have a smooth transition into your newly
chosen Medicare prescription drug plan.
How do you find the Medicare Part D or Medicare Advantage plans that are available
in your area?
When in doubt, you can always call a Medicare representative at 1-800-633-4227. We also
have several online tools to help you get an overview of the Medicare Part D plans in your
area. Here are some good ways to find a new plan for next year:
- Review all
stand-alone Medicare Part D plans (PDPs) available in your state or enter search criteria
to narrow the plan list.
- Review all
Medicare Advantage plans (MAPDs, MAs, and SNPs) available in your state or enter search
criteria to narrow the plan list.
This tool provides you with a little guided help finding a stand-alone Medicare Part D
plan. Just answer the questions and we will show you Medicare Part D plans generally
meeting your needs.