Medicare Plan Options: A Caregiver’s Clear Guide
If you’ve ever sat across from an aging parent and tried to explain the difference between Medicare Part A and Part B — only to watch their eyes glaze over — you are not alone. Medicare plan options are notoriously confusing, even for people who consider themselves pretty good at navigating paperwork. There are multiple parts, several add-ons, and a narrow window each year to make changes. Getting it wrong can cost your parent thousands of dollars. Getting it right can bring real peace of mind to your whole family. This guide breaks everything down in plain language so you can walk into enrollment season ready.
Why Medicare Is So Confusing (And Why It Matters)
Medicare currently covers around 64 million Americans, and that number is expected to climb past 80 million by 2030. That means millions of families like yours are trying to figure out the same thing right now: how to choose the right coverage for an aging parent without making a costly mistake.
The confusion is real and well-documented. Many older adults — and their caregivers — feel so overwhelmed by the choices that they simply don’t make one at all, or they default to whatever they had last year without checking if it still makes sense. That “just let it ride” approach can backfire. Prescription drug formularies change. Premiums go up. Networks shift. A plan that worked well two years ago may not be the best fit today.
As a caregiver, you may be the one doing the research, making the phone calls, and sitting beside your parent at the kitchen table with a stack of enrollment papers. Understanding what each part of Medicare actually covers — and what it doesn’t — is one of the most practical things you can do for your family right now.
The Building Blocks: Medicare Parts A and B
Original Medicare is made up of two parts. Think of them as the foundation everything else is built on.
Part A: Hospital Coverage
Part A covers inpatient hospital stays, skilled nursing facility care (under specific conditions), hospice care, and some home health services. Most people don’t pay a monthly premium for Part A if they or their spouse worked and paid Medicare taxes for at least 10 years.
However, “covered” doesn’t mean “free.” Part A comes with a deductible per benefit period — currently around $1,632 — and if your parent has a long hospital stay, coinsurance costs can add up quickly.
What Part A does NOT cover:
- Long-term custodial care (help with bathing, dressing, meals)
- Most dental care
- Vision exams or eyeglasses
- Hearing aids
This is an important point for caregivers. Many families assume Medicare will cover nursing home costs long-term. It won’t. If your parent needs ongoing custodial care, that’s a separate planning conversation. You can learn more about that in our guide to Long-Term Care Planning: A Family Guide.
Part B: Medical Coverage
Part B covers outpatient care, doctor visits, preventive services, lab work, durable medical equipment, and some home health care. Unlike Part A, most people do pay a monthly premium for Part B — the standard amount in 2025 is around $185 per month, though higher-income individuals pay more through what’s called an IRMAA surcharge.
Part B covers many preventive screenings at no cost, including annual wellness visits, mammograms, colonoscopies, flu shots, and cardiovascular screenings. Encouraging your parent to take advantage of these is one of the easiest ways to protect their health.
What Part B does NOT cover:
- Prescription drugs (that’s Part D)
- Routine dental, vision, and hearing
- Cosmetic procedures
- Care received outside the U.S. (with very limited exceptions)
Prescription Drug Coverage: Understanding Part D
Part D is Medicare’s prescription drug coverage. It’s offered through private insurers approved by Medicare, and your parent must actively enroll in a Part D plan — it doesn’t happen automatically.
Here’s why this matters: if your parent skips Part D when they’re first eligible and doesn’t have other creditable drug coverage, they may face a late enrollment penalty that gets added to their premium permanently. This penalty is calculated as 1% of the national base premium for every month they went without coverage.
Every Part D plan has a formulary — a list of covered drugs — and these change year to year. A medication your parent takes today may move to a higher cost tier next year, significantly increasing their out-of-pocket expenses. This is one of the biggest reasons to review coverage every single year during open enrollment, which runs from October 15 through December 7.
Tips for evaluating a Part D plan:
- Make a complete list of all your parent’s current medications, including dosages
- Use the Medicare Plan Finder tool at Medicare.gov to compare plans based on your parent’s specific drug list
- Check whether preferred pharmacies are in-network for that plan
- Look at total out-of-pocket costs, not just premiums
- Ask about Extra Help (Low Income Subsidy) if your parent has limited income or resources
Medicare Advantage vs. Original Medicare: Key Differences
This is where many families get tripped up. Medicare Advantage (Part C) is an alternative way to receive Medicare benefits. Instead of getting coverage directly through the federal government, your parent enrolls in a private insurance plan that has been approved by Medicare to provide at least the same benefits as Parts A and B.
Medicare Advantage plans often bundle in Part D drug coverage and may include extras like dental, vision, and hearing benefits — things Original Medicare doesn’t cover. Many plans have low or even $0 monthly premiums, which can look very attractive.
But there are trade-offs worth understanding carefully before signing up.
| Feature | Original Medicare | Medicare Advantage |
|---|---|---|
| Provider network | Any doctor/hospital that accepts Medicare | Usually limited to plan’s network |
| Referrals needed | No | Often yes (HMO plans) |
| Out-of-pocket maximum | No cap (unlimited exposure) | Has an annual cap |
| Prior authorization | Rarely required | Commonly required |
| Extras (dental, vision, hearing) | Not included | Often included |
| Monthly premium | Part B premium applies | Often low or $0 (plus Part B) |
One important warning: prior authorization requirements in Medicare Advantage plans can delay or deny access to care, including surgeries and specialist visits. If your parent has complex or serious health conditions, it’s worth carefully checking how a plan handles specialist referrals and whether their current doctors are in-network. Out-of-network care can be very costly or not covered at all.
For families considering Medicare Advantage, doing a careful side-by-side comparison each year using Medicare’s official plan comparison tool is strongly recommended.
What Is Medigap and Who Needs It?
Medigap, also called Medicare Supplement Insurance, is a private policy that helps pay costs Original Medicare doesn’t cover — things like deductibles, copayments, and coinsurance. If your parent chooses Original Medicare rather than Medicare Advantage, a Medigap policy can act as a financial safety net.
Medigap plans are standardized and labeled with letters (Plan G and Plan N are among the most popular). Each letter plan offers the same basic benefits regardless of which insurer sells it, so price shopping matters.
Important timing note: The best time to buy Medigap is during the six-month Open Enrollment Period that begins when your parent is both 65 and enrolled in Part B. During this window, insurers cannot deny coverage or charge more due to health conditions. After this window closes, they can — and often do — which can make Medigap very expensive or even unavailable for people with serious health issues.
Medigap does NOT work with Medicare Advantage. Your parent cannot have both at the same time.
A Medigap policy paired with Original Medicare tends to offer the most flexibility for those who travel frequently, have multiple specialists, or want predictable costs for ongoing health needs. This can be an especially important consideration as your parent ages and their medical complexity increases. Thinking ahead about this connects closely to broader long-term care planning conversations your family should have sooner rather than later.
Open Enrollment: When and How to Make Changes
Each year, Medicare’s Annual Enrollment Period (AEP) runs from October 15 through December 7. During this time, your parent can:
- Switch from Original Medicare to Medicare Advantage (or back)
- Switch from one Medicare Advantage plan to another
- Join, switch, or drop a Part D prescription drug plan
Changes made during this window take effect January 1 of the following year.
Step-by-step checklist for open enrollment:
- Gather your parent’s current plan information and any notices they received about changes for the coming year
- Make a complete list of their doctors, specialists, and preferred pharmacies
- List all current prescriptions with dosage and frequency
- Use Medicare’s Plan Finder tool to compare plans based on these specifics
- Check each plan’s provider directory to confirm their doctors are still in-network
- Look at total annual costs — not just premiums, but deductibles, copays, and coinsurance
- Consider whether your parent’s health needs have changed significantly in the past year
- Contact your State Health Insurance Assistance Program (SHIP) for free, unbiased counseling — find yours at shiphelp.org
- Make any changes before December 7
SHIP counselors are particularly valuable here. They are trained volunteers and staff who provide free one-on-one help and have no financial stake in which plan your parent chooses. If your parent feels overwhelmed — or if you do — this is a great first call to make.
If your parent is managing other health challenges at the same time, such as recovering from a fall or adjusting to a new diagnosis, the stress of navigating enrollment can feel like too much. Our article on what to do when parents refuse help offers some guidance on how to approach difficult conversations with sensitivity and patience.
Frequently Asked Questions About Medicare Plan Options
Can my parent still change plans after December 7?
There is a Medicare Advantage Open Enrollment Period from January 1 to March 31. During this time, someone already enrolled in a Medicare Advantage plan can switch to a different Advantage plan or return to Original Medicare (and add a Part D plan). However, Medigap enrollment during this period may not be guaranteed depending on the state.
Does Medicare cover assisted living or nursing home care?
Medicare does not cover custodial or long-term nursing home care. It may cover short-term skilled nursing facility stays after a qualifying hospital stay, but only under specific conditions and for a limited time. Long-term care is typically covered by Medicaid (for those who qualify), long-term care insurance, or private pay.
What if my parent has both Medicare and Medicaid?
People who qualify for both programs are called “dual eligible.” Special plans exist to help coordinate their coverage. A SHIP counselor can help identify the best options for your parent’s specific situation.
My parent missed their initial enrollment window. What happens?
Missing the initial enrollment period for Part B or Part D can result in permanent late enrollment penalties and a gap in coverage. There are Special Enrollment Periods for certain life events (like losing employer coverage), but the rules are specific. Contact Medicare directly at 1-800-MEDICARE or visit Medicare.gov to understand your parent’s options.
Is Medicare Advantage really worse than Original Medicare?
Not necessarily — it depends on your parent’s health needs, finances, and where they live. For someone who is relatively healthy, stays within a network, and wants extra benefits like dental and vision, Medicare Advantage may work well. For someone with complex or serious conditions who needs frequent specialist visits or wants flexibility to see any provider, Original Medicare with a Medigap supplement may offer more predictable access to care.
How do I know if my parent’s current plan is still the best choice?
The only way to know is to compare. Plans change their formularies, premiums, networks, and benefits every year. What was the best choice last year may not be the best choice now. Use Medicare’s Plan Finder tool, review the Annual Notice of Change your parent receives each fall, and consider calling a SHIP counselor for a second opinion.
Conclusion: You Can Do This
Navigating Medicare plan options doesn’t have to feel paralyzing. Once you understand the basic building blocks — Parts A, B, D, Advantage, and Medigap — the choices become much more manageable. The key is to actually review your parent’s coverage every single year, not just let it roll over. Medications change. Health needs shift. Plans get updated. Taking a few hours each fall to compare options could save your parent hundreds or even thousands of dollars — and protect their access to the care they need.
You don’t have to figure this out alone. SHIP counselors, Medicare’s own tools, and trusted guides like this one are here to help. And remember: doing this research for your parent is one of the most meaningful acts of caregiving there is.
By Liam Shields | Last Reviewed: May 31, 2026