Medicare has several important enrollment periods, and knowing the right dates can help you avoid missed opportunities, coverage gaps, or potential late-enrollment penalties.
3 months before you turn 65 → 3 months after your 65th birthday month
This is generally your first opportunity to enroll in Medicare Part A and Part B.
👉 Your exact dates depend on your birth month.
October 15 – December 7
This is the big one! During this period, Medicare beneficiaries can:
✔️ Join, switch, or drop a Medicare Advantage plan
✔️ Join, switch, or drop a Medicare Part D prescription drug plan
✔️ Switch between Original Medicare and Medicare Advantage
📌 Changes made during this period generally take effect January 1 of the following year.
January 1 – March 31
If you’re already enrolled in a Medicare Advantage plan, you can:
✔️ Switch to another Medicare Advantage plan
✔️ Return to Original Medicare
✔️ Add a standalone Part D plan if you return to Original Medicare
Your change generally takes effect the first day of the month after the plan receives your request.
January 1 – March 31
If you missed your Initial Enrollment Period and don’t qualify for a Special Enrollment Period, you may be able to enroll in Medicare Part A and/or Part B during this period.
Coverage generally begins the month after you sign up, and a late-enrollment penalty may apply.
Certain life events can give you a special opportunity to enroll or change coverage.
Examples include:
🏠 Moving
💼 Losing employer coverage
👨💼 Retiring
🏥 Changes in Medicaid eligibility
💊 Qualifying for Extra Help
📋 Other qualifying circumstances
The timing and options depend on the specific event.
Your one-time 6-month Medigap Open Enrollment Period generally begins when you’re 65 or older AND enrolled in Medicare Part B.
This period provides important protections when purchasing a Medicare Supplement policy.
If you’re already enrolled in a Medicare Advantage or Part D plan, your plan sends an Annual Notice of Change (ANOC) each fall, generally in September.
📬 Review it carefully because it explains changes to your plan’s costs and coverage for the upcoming year.
SAVE THIS POST & SHARE IT WITH SOMEONE TURNING 65!
Medicare enrollment dates can be confusing, and the right enrollment period depends on your individual circumstances.
📞 Next Level Benefits
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