Medicare OEP FAQs — Clear Answers to Common Questions

Medicare rules can feel overwhelming. Below are answers to some of the most frequently asked questions about OEP.

Can I change my plan more than once during OEP?

No. You are allowed one plan change during OEP.

If I switch plans, when does the new coverage start?

Your new coverage begins the first day of the month after enrollment.

Can I switch from Original Medicare to Medicare Advantage during OEP?

No. That change can only be made during AEP or a qualifying Special Enrollment Period.

Can I change Part D plans during OEP?

Only if you drop Medicare Advantage and return to Original Medicare.

Do I have to change plans during OEP?

No. OEP is optional. If your current plan is working well, you can keep it.

Understanding these rules helps prevent unintended coverage gaps or missed opportunities.