You’ve been on Medicare for a few years. Your plan works. Your doctors are in-network. Your prescriptions are stable. Life has a routine—and the last thing you want is to blow it up by fiddling with coverage that isn’t broken.
That instinct makes sense. By 70, Medicare feels real in a way it didn’t at 65. You’re not comparing plan brochures over coffee. You’re thinking about a cardiologist you’ve been seeing for years, a prescription that keeps you stable, a hospital system you actually trust. Switching coverage means paperwork, new cards, re-verifying providers, and dealing with unfamiliar systems. So the logic becomes: if it still works, why touch it?
Here’s the honest tension: Medicare plans are not permanent. They change every year, whether you review them or not. And the longer you go without checking, the more quietly your options narrow—not with any single dramatic event, but through a slow accumulation of small shifts that compound over time.
This isn’t about convincing you to switch. Most annual reviews end with “everything still works—stay the course.” The point is that you should know that intentionally, not by default.
Medicare Itself Doesn’t Change at 70. Your Plan Might.
There’s no age 70 enrollment event. Nothing resets. Medicare eligibility rules that applied at 65 still apply now. What does change is that, every January 1, your Medicare Advantage or Part D plan may look different from the year before.
Premiums can increase. Drugs you’ve been taking for years can move to a more expensive tier—or be dropped from the formulary entirely. Providers and hospital systems can move out of your plan’s network. Dental allowances, vision benefits, and OTC allowances can be reduced or removed. To see how significant those year-over-year shifts can actually be, it’s worth reviewing what changed with Medicare Advantage for 2026—it was not a small year.
None of this requires the plan to tell you in a prominent way. The changes are disclosed in the Annual Notice of Change (ANOC) your plan mails by September 30 each year—but most people don’t read it carefully. It arrives looking like junk mail, gets set in a pile, and the shifts it describes take effect January 1 without any further notice.
What “Quiet Drift” Actually Looks Like
Cost sharing shifts slightly. A formulary tier changes. A specialist moves out of network. Your plan’s service area trims a county. A dental benefit gets restructured from $2,000 to $500. None of these individually feel like a crisis. Together, over three or four years without a review, they add up to coverage that looks materially different from what you enrolled in.
Networks deserve special attention. Medicare Advantage plans build care around contracted provider networks, and those contracts get renegotiated every year. A doctor you’ve seen for years can move out of your plan on January 1—not because they stopped accepting Medicare, but because your specific plan no longer contracts with them. You’ll find out when they tell you, or when an explanation of benefits comes back differently than you expected.
Prescription costs are the other common surprise. Formularies change annually, and for people in their 70s who are managing multiple medications, a tier shift on one or two drugs can add hundreds of dollars a year in out-of-pocket costs.
Why Your Leverage Quietly Erodes
This is the part of post-70 Medicare that doesn’t get enough attention: the longer you stay on a plan without reviewing it, the fewer clean options you have if you ever need to make a change.
If you’re currently on Medicare Advantage and you want to switch to Original Medicare with a Medigap supplemental plan, you can do that—but in most states, you’ll face medical underwriting. That means an insurer can review your health history and either charge more or decline to issue you a policy. The guaranteed-issue window you had when you first enrolled at 65 is gone.
This doesn’t mean you’re locked in. But it does mean the options that felt open at 65 look different at 72. The deeper the health history, the more underwriting matters. If switching ever made sense for you, the time to explore it is before that decision becomes harder—not after. The full comparison of Medicare Advantage vs. Medigap is worth understanding from both directions, especially if your health has changed.
Enrollment windows matter in the same way. The Annual Enrollment Period runs October 15 through December 7. If you miss it without checking your options, you’re generally locked into your current plan until the following year. And the plan you’d want to be on in January might not look the same by next October.
The Insurance Company Starts to Matter More
Early in Medicare, this almost never comes up. You’re not using the system heavily. Claims get paid, appointments happen, everything seems fine. So the insurer behind the plan feels like background noise.
That changes over time.
By your 70s, you’re interacting with the healthcare system more—more specialists, more prescriptions, more care coordination. And that’s when the difference between insurance companies becomes tangible. Not in sudden failures, but in friction: longer hold times, more prior authorization requirements, more steps to accomplish things that should be routine. Some carriers handle complexity well as members age. Others are built for volume and move on.
This friction is worth factoring into whether your current plan is actually still working for you—or just covering you on paper while creating headaches in practice. It’s one of the questions worth asking honestly during an annual review, and it’s one of the harder things to see if you only look at the coverage on paper.
Thinking about your plan type and what level of flexibility you actually have access to? The differences between an HMO vs. PPO on Medicare Advantage affect how much control you have over seeing specialists and getting care when you travel.
Geography and the Snowbird Problem
If you split time between two homes—or if you’ve moved since you first enrolled—service areas matter in a way they didn’t when you were in one place year-round.
Medicare Advantage plans are geographically defined. They cover specific counties and ZIP codes. When plans make service area reductions, your secondary location can fall outside your coverage zone without any change to your primary address. That doesn’t make you uninsured, but it can mean out-of-network costs for care you receive while you’re away.
Original Medicare doesn’t have this limitation. It covers you at any provider who accepts Medicare, anywhere in the U.S. If your life involves regular travel or a second home, that geographic flexibility is worth factoring into how you evaluate your coverage—and it’s one of the most underrated reasons people in their 70s reconsider whether Medicare Advantage still fits their life.
What a Real Annual Check-In Involves
A Medicare review isn’t a shopping trip. It’s a 30-minute check to answer a few specific questions.
Are your doctors and preferred hospital still in your plan’s network? Have your medications changed tiers, and if so, what does that cost difference look like annually? Has your plan’s maximum out-of-pocket limit changed? Are there extra benefits you were counting on—dental, vision, hearing—that have been restructured? If you’re drawing more income this year through Social Security, retirement account withdrawals, or required minimum distributions, has IRMAA affected what Medicare is charging you?
If the answers come back clean, you stay. That confirmation is the point—not a change. But if something has shifted, you want to know while AEP is still open and you have room to act. For a structured way to think through the comparison process, how to compare Medicare Advantage plans walks through what to actually evaluate.
For a comprehensive look at what Medicare after 70 involves from a coverage mechanics standpoint, what Medicare after age 70 looks like in full detail is a thorough resource.
The Real Cost of Skipping the Review
It rarely shows up as one large surprise. It shows up as a prescription that costs three times what you expected. A specialist visit billed at out-of-network rates. A dental allowance that was cut in half. A prior authorization request that shouldn’t have been necessary but takes three phone calls to resolve.
The other cost is less visible. When you’re reacting to letters, surprises, and deadlines instead of making intentional decisions ahead of them, the cognitive load is real. Knowing your coverage is doing what you think it is—and that you’ve actively confirmed it—is worth something on its own.
FAQs
Does anything automatically change with Medicare when I turn 70?
Not automatically—Medicare eligibility rules don’t shift at 70. What does change is that each year, your Medicare Advantage or Part D plan can update its costs, formulary, provider network, and extra benefits. The longer you stay on a plan without reviewing it, the more those annual changes can accumulate unnoticed.
Can I switch Medicare plans after age 70?
Yes—during the Annual Enrollment Period (October 15–December 7) you can switch Medicare Advantage plans, change your Part D coverage, or move back to Original Medicare. The Medicare Advantage Open Enrollment Period (January 1–March 31) allows one additional plan switch. Outside those windows, switching requires a qualifying Special Enrollment Period.
Can I switch from Medicare Advantage to Medigap after age 70?
You can apply, but in most states you’ll face medical underwriting after the guaranteed-issue window that came with your initial enrollment at 65. That means insurers can review your health history and may charge more or decline coverage. It’s not impossible—but the flexibility is different than it was when you first signed up.
What is IRMAA and how does it affect people over 70?
IRMAA stands for Income-Related Monthly Adjustment Amount. If your reported income from two years ago exceeds certain thresholds—which often happens when people start Social Security, begin drawing from retirement accounts, or start required minimum distributions around age 73—Medicare charges higher Part B and Part D premiums. It’s worth checking whether recent income changes have affected what you pay.
Does Medicare coverage still work if I travel or live in two states?
Original Medicare covers you at any provider who accepts Medicare, anywhere in the U.S. Medicare Advantage plans are geographically restricted. If your plan reduces its service area or you spend significant time in a location outside your plan’s coverage zone, you may face out-of-network costs. If you split time between two homes, it’s worth verifying how your plan handles out-of-area care.
How often should I review my Medicare plan after age 70?
Once a year, during the Annual Enrollment Period before the December 7 deadline. This doesn’t mean you need to switch—it means you confirm your current plan still aligns with your doctors, medications, and costs. Most reviews end with “stay the course.” The value is knowing that intentionally, not by default.
Does Medicare automatically get more expensive after age 70?
Not automatically. But costs can drift over time through plan design changes, formulary adjustments, benefit restructuring, and shifts in how you’re using care. That slow creep is exactly why an annual review matters—it catches cost drift before it compounds.
Brickhouse Can Do This Review With You
At Brickhouse, we work with a lot of clients who’ve been on Medicare for several years and just want to make sure their coverage is still doing what they think it is. No pressure to switch. No script. Just a clear look at where things stand.
If you’re in your 70s and haven’t reviewed your plan in the past year—or if something has changed in your health, your prescriptions, your income, or your geography—it’s worth 30 minutes of your time.
Schedule a free Medicare review with Brickhouse and get a personalized look at your coverage: what’s working, what’s changed, and what your options look like going forward.
