The Medicare Mistakes I See All the Time (and How You Can Avoid Them)

Let me just say this right out of the gate: if you’re confused about Medicare, you’re not alone. Almost everyone gets something wrong the first time around. And it’s not because you’re not smart.

What usually happens is people start asking friends, listening to ads, Googling late at night… and by the time they finally make a decision, they’ve already made a mistake they didn’t even know they were making.

So let’s talk about the ones I see all the time; the mistakes that can cost you money, limit your options, or come back to bite you later.

Enrollment Timing Isn’t as Simple as People Make It Sound

You’ve probably heard, “Sign up at 65!” from just about everyone. And sometimes… that’s actually the wrong move.

I see this go both ways:

• People sign up because they feel pressured even though they didn’t need to
• Or they don’t sign up because they think their current insurance is fine but it’s not the right kind to avoid penalties

Here’s the truth:

Not all insurance lets you delay Medicare safely.

Marketplace plans, retiree plans, COBRA… those usually don’t protect you from penalties. The only thing that really does is insurance through active employment.

And if you miss your window for Part B? That penalty sticks with you. It’s 10% more for every year you delay and you pay that every single month for life.

Still Working at 65? Your Employer Size Matters

This one surprises a lot of people.

If your employer has:

• 20 or more employees → you can usually delay Part B
• Fewer than 20 employees → Medicare needs to be your primary insurance

If you get this wrong, you could end up paying a big chunk of your healthcare bills out of pocket and nobody wants that surprise.

HSAs and Medicare Don’t Mix

If you’ve got a Health Savings Account through work, this is really important.

The moment you enroll in any part of Medicare (even Part A), you can no longer contribute to your HSA.

A lot of people sign up for Part A thinking, “It’s free, why not?” without realizing it creates a tax issue. So if you have an HSA, you’ll want to be careful here.

The Medigap Window People Don’t Even Know Exists

This is one of the biggest ones.

You get a 6-month window when you’re 65 and enrolled in Part B to sign up for a Medigap plan without health questions.

After that? In most states, you’ll have to go through medical underwriting. That means answering health questions and yes, you can be denied.

And no, this has nothing to do with the annual open enrollment you hear about on TV. That’s for Advantage and drug plans, not Medigap.

Medicare Advantage vs. Medigap: They’re Not the Same Thing

These are two completely different paths, and I see a lot of confusion here.

What people don’t realize is this: if you start with a Medicare Advantage plan and later decide you want a Medigap plan, it’s not always a simple switch.

In many cases, you’ll have to go through underwriting again. So your health at that point matters.



That first decision you make? It can affect your options later.

Skipping Part D Because “I Don’t Take Medications”

I hear this one all the time.

It makes sense on the surface but Medicare still expects you to enroll in drug coverage when you’re first eligible.

If you don’t, there’s a penalty. And just like Part B, it’s not a one-time "fee," but a monthly add-on to your premium, for life.



Even if you don’t take medications right now, it can make sense to pick up a low-cost plan just to keep that penalty off your back.

The Sneaky Part D Penalty Most People Miss

This one catches people off guard.

If you sign up for Part A at 65 but delay everything else, Medicare still considers you eligible for Part D.

That means the penalty clock starts ticking… even though you are covered, and it's the last thing on your mind.

Later on, when you finally enroll, you’ll be asked to prove you had creditable drug coverage the whole time. If you don’t respond or don’t have that proof, you could end up with a penalty that’s hard to fix.

There’s No One “Best” Plan

I know it would be nice if there were just one clear answer but there isn’t.

The best plan depends on you, your doctors, your medications, your budget, your preferences.

What works great for your neighbor might be completely wrong for you. And following general advice without really digging into your own situation? That’s where people run into trouble.

So What’s the Best Way to Get This Right?

Don’t try to piece it together on your own.

Find someone you trust who can walk through your specific situation with you and explain how all the pieces fit together. It makes a huge difference.

Final Thought

These mistakes don’t happen because people don’t care. They happen because Medicare is complicated, and a lot of the information out there is either incomplete or focused on selling something.

If you’re turning 65 soon or even in the next year, now is the time to start learning and asking questions.

The goal here is simple: get it right the first time, so you don’t have to fix it later.

Ready to Make This Easy?

If you’re feeling even a little unsure about your next step, that’s your sign to get some guidance.

I offer one-on-one help where we walk through your situation together your timeline, your coverage, your options so you’re not guessing or hoping you got it right.

It’s simple, it’s personalized, and yes… it’s completely free.

👉 Head over here and book a time on my calendar.

You don’t have to figure this out alone and you definitely don’t have to learn the hard way.

Talk soon,

Pam