You may be reading this because your current Medicare coverage isn’t feeling quite right anymore. Maybe your doctor left the network. Maybe your medications changed. Or maybe your health costs have crept up, quietly but steadily.
The thought of getting ready for Medicare, or figuring out when to sign up, can feel overwhelming. But it doesn’t have to be.
In this guide, we’ll walk you through what Medicare is, when you should sign up, and some key timing rules to watch so you can make better decisions (not rushed ones).
What Is Medicare?
Medicare is a federal health insurance program for people age 65 and older, as well as certain younger individuals with disabilities or end-stage renal disease.
There are four main parts of Medicare:
- Part A (Hospital Insurance): Covers hospital stays, skilled nursing care, hospice, and some home health care.
- Part B (Medical Insurance): Covers doctor visits, outpatient care, lab work, imaging, durable medical equipment, and preventive services.
- Part C (Medicare Advantage): Private insurance plans that replace Original Medicare and often include extra benefits.
- Part D (Prescription Drug Coverage): Helps pay for prescription medications.
Most people start with Original Medicare, which includes Part A and Part B and is managed by the federal government. From there, you can decide whether to add drug coverage, a Medicare Supplement, or switch to a Medicare Advantage plan.
When Should You Sign Up?
Most people should start the Medicare enrollment process around their 65th birthday.
Enrollment Windows at a Glance
Here are the main enrollment windows you should understand:
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Initial Enrollment Period (IEP): This is your first, best opportunity to sign up. It spans three months before the month you turn 65, the month you turn 65, and three months after your birthday month.
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General Enrollment Period (GEP): If you miss your IEP and don’t qualify for a Special Enrollment Period, you can enroll between January 1 and March 31 each year, though you may face late enrollment penalties.
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Annual Election Period (AEP): Occurs each year from October 15 to December 7 when you can review or change your Medicare Advantage or drug plans.
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Medicare Advantage Open Enrollment Period (MA OEP) — For those already in a Medicare Advantage plan, from January 1 to March 31 you may switch to another Advantage plan or drop Advantage back to Original Medicare.
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Special Enrollment Periods (SEPs) — These are triggered by life events such as moving, losing other coverage, or your plan being terminated. The exact rules and timing depend on the specific event.
What If You Miss Your Enrollment Window?
If you miss this window – and you don’t have employer coverage – you could face:
- Late enrollment penalties on your Part B and Part D premiums
- Delays in coverage that leave you uninsured
That’s why it’s important to review your timeline ahead of time. If you’re not sure when to start, book a free consultation and I’ll walk you through it.
What If You’re Working Past 65 or Covered by Employer Health Insurance?
If you or your spouse are still working past age 65 and covered under an employer plan, you may be able to delay some parts of Medicare without penalty. It depends on:
- The size of your employer (fewer than or more than 20 employees)
- Whether the plan is considered creditable coverage
- How the employer plan coordinates with Medicare
This can be tricky – and mistakes can be expensive. If you’re working past 65 and not sure how Medicare fits in, let’s talk through it. You can schedule a call here.
How Medicare Coverage Starts
Your coverage starts differently depending on when you enroll and under which part. For example, if you sign up during your IEP, your Part A coverage may start on a different date than your Part B. Getting the timing correct helps you avoid gaps or paying more than needed.
What Happens After You Enroll?
Once you’re signed up for Part A and Part B, the next step is deciding how you want to receive your benefits. You’ll have a choice between:
- Staying on Original Medicare and adding a Medicare Supplement and/or drug plan
- Choosing a Medicare Advantage Plan that replaces Original Medicare
Each path has pros and cons depending on your needs, budget, and coverage preferences. I can help you compare options and make a confident choice.
Why the Timing Matters
Timing affects whether you:
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Incur late-enrollment penalties (which can last for as long as you have Medicare).
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Face gaps in coverage—while your application is processed or you wait for entitlement.
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End up with a plan that doesn’t align with your needs because you rushed into it.
FAQs
Will my new Medicare plan stay the same each year?
No — plans change their benefits, networks, formularies, and costs annually. Reviewing your coverage each year during the enrollment period ensures your plan continues to fit your needs.
Can I switch Medicare plans whenever I want?
Not at any time. Most changes must occur during specific enrollment periods like the IEP, AEP, MA OEP, or via a Special Enrollment Period triggered by a qualifying event.
What events qualify me for a Special Enrollment Period (SEP)?
Qualifying events include moving outside your plan’s service area, losing employer coverage, a plan being terminated, or other life-changing situations. The rules and duration of each SEP vary.
How do I estimate which plan will cost me the least?
Look beyond the monthly premium. Add your expected use: doctor visits, medications, tests, hospital stays. Factor in the deductible, copays/coinsurance, and the annual out-of-pocket maximum (MOOP).
Putting It All Together: Your Medicare Next Steps
Medicare comes with deadlines, decisions, and fine print – and if you miss a step, you could end up with higher costs or gaps in coverage.
If you’re turning 65 soon or helping a loved one with Medicare, the best time to start planning is before that birthday window opens. A little preparation now can save you time, stress, and money later.
And you don’t have to figure it all out alone. I’m here to help.
Schedule your free Medicare consultation here.
Niki Feret is the founder of Brickhouse Agency, a boutique Medicare insurance agency licensed in 37 states. As one of the few female agency owners in the industry, Niki leads with clarity, compassion, and a commitment to education – not pressure. Learn more or book your free Medicare consultation at brickhouseagency.com.





