You can only join, switch, or drop a medicare advantage plan (part c) or. Most people sign up for part a (hospital insurance) and part b (medical insurance) when they're first eligible, typically at age 65. It's important to sign.

Webwhen to sign up for medicare. There are multiple opportunities to enroll in medicare. Webthe three medicare enrollment periods β€” initial, special and general β€” are specific time frames when you can enroll in medicare based on certain circumstances, such as choosing to delay enrollment if you continue working past age 65. Understanding medicare advantage & medicare drug plan enrollment periods.