If you’re turning 65 and starting to think about Medicare, you’ve probably received a stack of mail and maybe even a few calls from insurance agents urging you to act now. But here’s the thing—they’re not always telling you the full story.
There are five critical Medicare truths that often go unmentioned by insurance companies, agents, and even government resources. These blind spots can lead to costly mistakes, unnecessary coverage, or worse—plans that don’t protect your health or your retirement savings.
Let’s walk through what you really need to know so you can make your best Medicare decision in 2025 with clarity and confidence.
1. You Might Not Need to Join Medicare at 65
Yes, it’s true that most Medicare mailings warn of penalties if you don’t enroll at 65—but what they often don’t mention is that you can delay Medicare if you have an employer health plan that meets Medicare’s rules. If you’re still working, or covered by a spouse’s employer plan, and that plan meets Medicare’s size and coverage criteria, you may be able to wait. I’ve even had clients enroll for the first time at 84 without penalty—because they had the right employer coverage. Don’t just assume you have to enroll at 65. Instead, confirm your eligibility to delay and protect your enrollment options for later.
2. You Can’t Always Change Plans Later—Even During Open Enrollment
Many people assume that they can switch Medicare plans freely each year, especially during the annual Open Enrollment period. And while it’s true you can change Medicare Advantage and Part D plans annually, Medicare Supplement (Medigap) plans work differently. In most states, you only have a six-month window when you first enroll in Medicare Part B. After that, you may be denied coverage based on pre-existing conditions. This is why it’s so important to take a long-term view when you first join Medicare. Don’t just “check a box” and hope for the best—make your first Medicare decision count.
3. Out-of-Pocket Costs Can Add Up Fast—Even With Insurance
One of the most overlooked (and misunderstood) parts of Medicare is how out-of-pocket costs work. While most people focus on premiums and co-pays, they don’t realize that maximum out-of-pocket limits, or lack there of, can lead to surprise costs in a high healthcare year. Even with a Medicare plan, a single emergency room visit or multiple tests can push your out-of-pocket expenses well into the thousands. That’s why, when we work with financial planning clients, we don’t just look at premiums—we look at the total potential risk, especially for people who can’t afford to lose $5,000–$10,000 each year to unexpected medical bills.
4. Some Plans Have Higher Denial Rates for Services
Many people ask, “Will Medicare cover everything I need?” The truth is, it depends on the plan. We see more service denials under Medicare Advantage plans, especially for things like physical therapy or skilled nursing care. Some denials happen because of limited provider networks, while others are based on stricter rules for approving care. On the other hand, Original Medicare tends to be more straightforward when it comes to approvals, and denials are less frequent. That’s not to say Medicare Advantage is always bad—but it’s important to know the differences before you sign up.
5. Some Plans Pay Higher Commissions—Which Can Influence Recommendations
Here’s something rarely discussed: some plans pay insurance agents more than others. Medicare Advantage plans typically offer the highest commissions, followed by certain Medicare Supplement plans (like Plan G or Plan N), depending on the state. Even different insurance companies can offer different commission levels. That means you may be steered toward a plan that benefits the agent more than it benefits you. Always ask whether the plan recommendation is based on your needs—not the commission chart. The right Medicare plan for you might not be the one everyone else is pushing.
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