If you’re approaching age 65, it’s important to know when and how you can enroll in Medicare, as well as the options available to supplement your health coverage. Here’s a clear breakdown of what you need to know:
📅 Your Initial Medicare Enrollment: When does it start and how long does it last?
When you turn 65, you’ll need to decide between two main paths:
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Enroll in Original Medicare (Parts A and B from the federal government)
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Or choose a Medicare Advantage plan (Part C), offered by a private insurance company
You have a 7-month enrollment window, which includes:
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The 3 months before the month you turn 65
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Your birthday month
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And the 3 months after
🔔 Important: If your birthday falls on the 1st of the month, your enrollment window begins one month earlier (meaning 4 months before turning 65) and ends 2 months after. In this case, your coverage can even start on the first day of the month before your birthday.
💡 What if you’re under 65?
If you have a disability, End-Stage Renal Disease (ESRD), or another chronic condition and are already receiving Social Security benefits, you may qualify for Medicare before turning 65.
🔄 Medicare Annual Open Enrollment Period
Each year, from October 15 to December 7, you can make changes to your current coverage.
During this period, you can:
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Switch from Original Medicare to a Medicare Advantage plan
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Go back from a Medicare Advantage plan to Original Medicare
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Change or add a prescription drug plan (Part D)
➕ Want extra coverage? Consider Medigap (Supplemental Insurance)
If you’re already enrolled in Original Medicare and are 65 or older, you can purchase a supplemental Medicare policy known as Medigap. These plans are not part of the federal program — they’re offered by private insurers.
🗓️ You have a special 6-month window to buy any Medigap plan available in your state, regardless of your health history. This period starts on the first day of the month when:
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You are 65 or older, and
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You are enrolled in Medicare Part B
While you can apply for a Medigap plan at any time of year, outside of this special window the insurer may review your health, apply restrictions, or even deny your application.





