For Consumers

When can I sign up, switch or leave?

Sign up for Medicare information

In addition to when you first join Medicare, you can also enroll during:

Annual election period

Occurs: Oct. 15 through Dec. 7 each year

During this enrollment period:

Medicare Advantage open enrollment period

Occurs: Jan. 1 through March 31 each year

If you're enrolled in a Medicare Advantage plan on Jan. 1, you can:

  • Change to a different Medicare Advantage plan.
  • Leave your Medicare Advantage plan to join Original Medicare.
  • Add or drop Medicare Part D when switching plans.

However, you cannot switch from one stand-alone prescription drug plan to another stand-alone prescription drug plan.

Any changes you make, take effect the first day of the month after your request.

Special enrollment period

Some people, such as those with Medicaid ( or Extra Help (, a change in where they live, a change in their current health insurance, or whose plan is leaving Medicare, may switch plans before the annual election period.