Medicare Made Simple: What You Need to Know Before You Turn 65

Medicare is one of those topics that sits comfortably in the "I'll figure it out later" category… until later arrives. Then suddenly there are parts and plans and enrollment windows and income surcharges, and the clock is ticking.

The stakes are real. Miss the wrong deadline and you could face permanent premium penalties. Choose the wrong plan and you may find your preferred doctor isn't covered. Ignore the income piece and a single financial decision could quietly raise your premiums for years.

This guide is our attempt to cut through the complexity. What Medicare is, how it works, what it costs, AND how it connects to the retirement income decisions you're already making.

What Is Medicare?

Medicare is the federal health insurance program primarily for people 65 and older. It also covers certain younger individuals with qualifying disabilities or specific conditions.

Unlike employer health insurance, Medicare isn't a single plan. It's a system of different parts that cover different types of care.

The Four Parts of Medicare

Part A: Hospital Insurance
Part A covers inpatient hospital stays, skilled nursing facility care, hospice care, and some home health services. Most people pay no premium for Part A if they or their spouse worked and paid Medicare taxes for at least ten years.

Part B: Medical Insurance
Part B covers outpatient care, doctor visits, preventive services, and medically necessary services. It carries a monthly premium, and higher-income individuals pay more through IRMAA surcharges, which we'll cover below.

Part C: Medicare Advantage
Medicare Advantage plans are offered by private insurers approved by Medicare. They bundle Part A and Part B benefits and often add dental, vision, hearing, and prescription drug coverage. Costs, provider networks, and coverage details vary significantly between plans.

Part D: Prescription Drug Coverage
Part D covers prescription drugs for people enrolled in Original Medicare. If you choose Medicare Advantage, prescription coverage is often already included, so a separate Part D plan may not be needed.

Original Medicare vs. Medicare Advantage: What's the Difference?

This is the question we hear most often from families approaching 65.

Original Medicare (Parts A and B) lets you see any doctor or specialist who accepts Medicare, anywhere in the country. No networks, no referrals. The tradeoff is that there's no cap on your out-of-pocket costs, which is why most people pair Original Medicare with a Medigap supplemental plan.

Medicare Advantage (Part C) delivers your Medicare benefits through a private insurer. Premiums are often lower, and additional benefits are frequently included. The tradeoff is that you're typically limited to a network of providers and may need referrals for specialist care.

Neither is universally better. The right choice depends on your health needs, your doctors, how much you travel, and what fits your retirement budget.

What Medigap Covers

Medigap, also called Medicare Supplement Insurance, is private coverage designed to fill the gaps Original Medicare leaves behind: deductibles, copayments, and coinsurance. Plans are standardized and labeled A through N, each offering a different level of coverage.

Medigap generally means more predictable out-of-pocket costs and broader provider access. The tradeoff is a higher monthly premium, and Medigap doesn't include prescription drug coverage, so you'd need a separate Part D plan alongside it.

Medicare Enrollment: When and How to Sign Up

Enrollment timing is one of the most consequential Medicare decisions you'll make. Missing the right window can have permanent consequences.

Initial Enrollment Period
Your Initial Enrollment Period begins three months before the month you turn 65 and ends three months after, a seven-month window that is your primary opportunity to enroll without penalty.

Special Enrollment Period
If you're still working at 65 and covered by an employer health plan through a company with 20 or more employees, you can delay Medicare enrollment without penalty. When that employer coverage ends, you have an eight-month Special Enrollment Period to sign up.

One important note: COBRA coverage and retiree health plans do not qualify as employer coverage for purposes of delaying Medicare enrollment. Relying on these while missing your enrollment window can result in late enrollment penalties that stay with you permanently.

Late Enrollment Penalties
The Part B late enrollment penalty is 10% of the standard premium for each full 12-month period you were eligible but didn't enroll, and it's added to your premium for as long as you have Part B. The Part D penalty works similarly. These aren't temporary surcharges. They're permanent additions to what you'll pay every month.

Enrolling on time is one of the simplest and most important things you can do for your retirement finances.

What Does Medicare Cost?

Costs vary based on your plan choices and your income. Here's a general picture:

Part A: Usually $0 if you or your spouse paid Medicare taxes for ten or more years.

Part B: $185.00 per month at the standard rate in 2026. Higher-income individuals pay more through IRMAA.

Part D: Varies by plan, typically $10 to $100 or more per month depending on the medications covered.

Medigap: Varies by plan type, age, and location.

Medicare Advantage: Often lower monthly premiums than Original Medicare plus Medigap, but cost-sharing at the point of care varies significantly by plan.

IRMAA: Why Your Income Affects Your Medicare Premiums

IRMAA  (the Income-Related Monthly Adjustment Amount) is one of the most important and least understood pieces of Medicare for people with higher retirement incomes.

If your modified adjusted gross income exceeds certain thresholds, you pay a surcharge on top of your standard Part B and Part D premiums. In 2026, those thresholds begin at $106,000 for individuals and $212,000 for married couples filing jointly.

Here's the piece that catches people off guard: the IRMAA calculation is based on your income from two years prior. Your 2026 Medicare premiums are determined by your 2024 income. That means a large IRA withdrawal, a Roth conversion, the sale of a property, or any other significant income event can push you into a higher IRMAA bracket, sometimes without realizing it until the bill arrives.

For families in Northeast Pennsylvania who are navigating the transition into retirement, this is an area where proactive planning makes a real difference. Thoughtful decisions about which accounts to draw from, and when, can meaningfully reduce your IRMAA exposure over time.

How Medicare Connects to Your Retirement Income Plan

This is the piece most Medicare guides skip, and it's one of the most important for the families we work with.

The accounts you draw from in retirement, and when you withdraw, can directly affect your Medicare costs. Here's why:

Traditional IRA and 401(k) withdrawals count as ordinary income and increase your modified adjusted gross income. Drawing heavily from pre-tax accounts can push you above IRMAA thresholds.

Roth IRA withdrawals don't count toward your Modified Adjusted Gross Income (MAGI). In years where keeping your income lower matters, particularly around Medicare enrollment, drawing from a Roth instead of a traditional IRA can help you stay below IRMAA thresholds.

Roth conversions increase your income in the year of conversion. Timing them carefully relative to Medicare enrollment and IRMAA brackets is an important coordination decision.

Social Security income is partially included in MAGI calculations. The more other income you have, the larger the portion of your Social Security benefit that counts.

Medicare planning and retirement income planning aren't separate conversations. Getting them to work together requires looking at both at the same time, which is exactly how we approach it with every client we serve.

Medicare Annual Enrollment Period

Every year from October 15 through December 7, Medicare's Annual Enrollment Period allows you to switch from Original Medicare to Medicare Advantage (or back), change Medicare Advantage plans, and join, switch, or drop Part D prescription drug coverage.

Changes made during this window take effect January 1 of the following year. It's a meaningful opportunity to review whether your current coverage still fits, especially if your health, your medications, or your preferred providers have changed since you last enrolled.

Frequently Asked Questions

Can I keep my current doctor with Medicare?
With Original Medicare, you can see any provider who accepts Medicare nationwide. With Medicare Advantage, you're generally limited to the plan's network. Before enrolling in any plan, it's worth confirming your doctors and preferred hospitals are included.

When should I sign up for Medicare if I'm still working?
If your employer coverage is through a company with 20 or more employees, you can delay Medicare without penalty. Once that coverage ends, you have eight months to enroll. If your employer has fewer than 20 employees, Medicare becomes your primary insurance at 65, delaying could mean gaps in coverage.

Does Medicare cover long-term care?
Original Medicare covers short-term skilled nursing facility care under specific conditions, but it does not cover long-term custodial care, the kind of ongoing assistance with daily activities that most people associate with nursing homes or home care aides. Long-term care planning is a separate but related conversation worth having.

What if I disagree with an IRMAA determination?
You can appeal an IRMAA surcharge if your income has decreased significantly since the determination year due to retirement, marriage, divorce, or other qualifying life events. This is worth knowing if your income has changed.

How often should I review my Medicare coverage?
At a minimum, during each Annual Enrollment Period. Plans change their costs and coverage every year. A plan that made sense last year may no longer be the best fit.

The Bottom Line

Medicare is complex, but it doesn't have to be overwhelming. The families we work with in Honesdale and across Northeast Pennsylvania navigate this every year, and the ones who do it well are the ones who start the conversation early.

If you're within five years of 65, now is the right time to start thinking through your Medicare strategy, not as a standalone decision, but as part of your broader retirement income plan.

Not sure where to start? We'd be glad point you in the right direction:

Schedule a complimentary conversation with our team → (570) 729-1020 or info@sageinvestments.net