Medicare Explained: A Complete Guide to Understanding Your Medicare Options
Medicare can feel complicated when you're first approaching eligibility. Between Medicare Parts A, B, C, and D, Medicare Advantage, Medicare Supplement plans, enrollment periods, premiums, and prescription drug coverage, there is a lot to understand.
The good news is that Medicare becomes much easier once you understand the basics.
Whether you're turning 65 soon, preparing for retirement, helping a family member, or already enrolled in Medicare, this guide will help you understand how Medicare works, what Medicare covers, and the different coverage options available to you.
What Is Medicare?
Medicare is the federal health insurance program primarily for people age 65 and older. Certain younger individuals with disabilities or specific medical conditions may also qualify.
Medicare is divided into different parts that cover different types of healthcare.
The four parts you'll hear about most often are:
Medicare Part A: Hospital insurance
Medicare Part B: Medical insurance
Medicare Part C: Medicare Advantage
Medicare Part D: Prescription drug coverage
Understanding the differences between these parts is one of the first steps toward making informed Medicare decisions.
What Does Medicare Part A Cover?
Medicare Part A is commonly referred to as hospital insurance.
Part A can help cover qualifying:
Inpatient hospital care
Skilled nursing facility care
Hospice care
Home healthcare
Many people don't pay a monthly premium for Medicare Part A because they or their spouse paid Medicare taxes for a sufficient period while working.
However, Part A isn't necessarily free healthcare. Deductibles, coinsurance, and other costs may still apply.
What Does Medicare Part B Cover?
Medicare Part B is medical insurance.
It helps cover many of the healthcare services you receive outside of an inpatient hospital stay.
Coverage may include:
Doctor visits
Specialist appointments
Outpatient care
Preventive services
Diagnostic testing
Certain medical equipment
Certain home healthcare services
Unlike premium-free Part A, most Medicare beneficiaries pay a monthly premium for Part B.
You may also be responsible for a deductible and coinsurance for covered services.
What Is Original Medicare?
When Medicare Parts A and B are used together, they're commonly called Original Medicare.
Original Medicare provides broad access to healthcare providers throughout the United States who accept Medicare.
However, Original Medicare doesn't cover every healthcare expense.
Beneficiaries can still be responsible for deductibles, coinsurance, and services Medicare doesn't cover.
Original Medicare also generally doesn't include comprehensive outpatient prescription drug coverage.
That's why many beneficiaries add other coverage.
What Is Medicare Part C?
Medicare Part C, better known as Medicare Advantage, is an alternative way to receive your Medicare benefits.
Medicare Advantage plans are offered by private insurance companies approved by Medicare.
These plans must provide Medicare Part A and Part B benefits, with some exceptions such as hospice care, which Original Medicare generally covers.
Many Medicare Advantage plans also include prescription drug coverage.
Depending on the plan, additional benefits may include services related to:
Dental care
Vision care
Hearing
Fitness programs
Other supplemental benefits
However, Medicare Advantage plans can have provider networks, copayments, coinsurance, deductibles, prior authorization requirements, and other plan rules.
Benefits and costs can vary by plan and location.
What Is Medicare Part D?
Medicare Part D helps cover prescription medications.
Private insurance companies offer Medicare drug plans that follow Medicare requirements.
If you have Original Medicare, you can generally purchase a standalone Part D prescription drug plan.
Many Medicare Advantage plans already include Part D coverage.
When comparing prescription drug plans, don't look only at the monthly premium.
Consider:
Whether your medications are covered
Drug tiers
Deductibles
Copayments
Coinsurance
Pharmacy networks
Your prescription needs can have a major impact on which plan makes sense for you.
What Is Medicare Supplement Insurance?
Medicare Supplement insurance, also known as Medigap, works alongside Original Medicare.
Medigap policies are sold by private insurance companies and are designed to help pay certain healthcare costs that Original Medicare leaves to the beneficiary.
Depending on the Medigap plan, coverage may help with certain:
Medicare Part A coinsurance
Medicare Part B coinsurance or copayments
Hospital expenses
Skilled nursing facility coinsurance
Other Medicare cost-sharing
Medicare Supplement plans don't replace Original Medicare. They supplement it.
Modern Medigap policies also don't include outpatient prescription drug coverage, so beneficiaries who need drug coverage generally consider a separate Part D plan.
Medicare Advantage vs. Medicare Supplement: What's the Difference?
This is one of the most common sources of Medicare confusion.
Medicare Advantage and Medicare Supplement insurance aren't the same thing.
With Medicare Advantage, you receive your Part A and Part B benefits through a Medicare-approved private plan.
With Medicare Supplement insurance, you remain enrolled in Original Medicare and purchase additional insurance to help cover certain costs Original Medicare doesn't pay.
When comparing the two approaches, consider:
Monthly premiums
Out-of-pocket expenses
Provider networks
Prescription drug coverage
Travel habits
Preferred doctors and hospitals
Additional benefits
Your expected healthcare usage
There isn't one option that's automatically right for everyone.
Your individual healthcare needs, budget, and preferences should guide your decision.
What Doesn't Original Medicare Cover?
Another important part of understanding Medicare is knowing its limitations.
Original Medicare generally doesn't cover routine:
Dental care
Dentures
Eye exams for prescription glasses
Most eyeglasses
Hearing aids
Hearing aid fitting exams
Long-term custodial care
Original Medicare also generally provides very limited healthcare coverage outside the United States.
This is why looking at your complete healthcare needs—not simply your Medicare premium—is important when planning for retirement.
When Can You Enroll in Medicare?
For many people, the first opportunity to enroll is their Initial Enrollment Period.
This seven-month period generally includes:
The three months before you turn 65
The month you turn 65
The three months after you turn 65
Some people are automatically enrolled, while others need to sign up.
If you're still working at 65 and have qualifying employer-sponsored health insurance, different enrollment rules may apply.
Don't automatically assume you can delay Medicare simply because you have other health insurance.
Understanding your enrollment deadline is important because delaying certain Medicare coverage without qualifying coverage can potentially result in late-enrollment penalties.
What Happens If You Miss Medicare Enrollment?
Missing a Medicare enrollment deadline can have financial consequences.
Depending on your situation, delaying Medicare Part B could result in a late-enrollment penalty.
Medicare Part D also has a late-enrollment penalty for beneficiaries who go without Part D or other creditable prescription drug coverage for a qualifying period.
In some cases, these penalties can continue for as long as you have the coverage.
If you're approaching 65, understanding your enrollment options before your Initial Enrollment Period begins can help you avoid unnecessary problems.
How Much Does Medicare Cost?
There isn't one universal price for Medicare.
Your costs can depend on:
Which parts of Medicare you have
Your income
Your healthcare usage
Prescription medications
Medicare Advantage or Medigap coverage
The plans available where you live
Potential expenses include:
Monthly premiums
Deductibles
Copayments
Coinsurance
Prescription drug costs
Services Medicare doesn't cover
Higher-income beneficiaries may also pay additional Part B and Part D amounts through the Income-Related Monthly Adjustment Amount (IRMAA).
Because Medicare costs can change annually, reviewing current Medicare premiums and deductibles is important when creating your retirement budget.
Can You Have Medicare While Still Working?
Yes.
Turning 65 doesn't mean you have to retire.
You can continue working while enrolled in Medicare.
However, whether you should enroll in all parts of Medicare immediately can depend on your employer coverage and other circumstances.
The rules can be particularly important for:
Small business owners
Self-employed individuals
People working beyond age 65
Individuals covered through a spouse's employer
People contributing to a Health Savings Account
If you're working past 65, review your situation before making enrollment decisions.
Does Medicare Cover Pre-Existing Conditions?
Original Medicare eligibility and coverage aren't generally denied because you have a pre-existing health condition.
However, rules can differ when purchasing Medicare Supplement insurance outside certain enrollment or guaranteed-issue periods.
Depending on your circumstances and state protections, a Medigap insurer may be permitted to use medical underwriting when you apply outside protected enrollment situations.
This is one reason understanding your Medicare Supplement Open Enrollment Period can be particularly important.
Should You Review Your Medicare Coverage Every Year?
Yes, especially if you're enrolled in Medicare Advantage or Medicare Part D.
Private Medicare plans can change from year to year.
Changes may affect:
Premiums
Deductibles
Provider networks
Prescription formularies
Copayments
Coinsurance
Additional benefits
Your personal situation can also change.
You may begin taking a new medication, see a new specialist, move, travel more frequently, or develop different healthcare needs.
An annual Medicare review can help you determine whether your current coverage still fits your situation.
Common Medicare Mistakes to Avoid
Understanding a few common mistakes can make Medicare planning easier.
Avoid:
Waiting until the last minute to research Medicare
Assuming Medicare covers every healthcare expense
Choosing a plan based only on the monthly premium
Ignoring prescription drug coverage
Assuming your doctors accept every Medicare plan
Forgetting to review coverage annually
Missing enrollment deadlines
Assuming Medicare covers long-term custodial care
Choosing a plan based solely on additional benefits such as dental or vision
Taking time to understand the complete picture can help you make a more informed decision.
How Do You Choose the Right Medicare Coverage?
Start by looking at your individual situation.
Consider your:
Doctors: Do you want to continue seeing particular physicians or specialists?
Prescriptions: Which medications do you take, and how much could they cost under different plans?
Budget: Are predictable monthly expenses important to you, or are you comfortable with potentially higher out-of-pocket expenses?
Travel: Do you frequently travel or spend part of the year in another state?
Healthcare needs: How frequently do you expect to use medical services?
Additional benefits: How important are dental, vision, hearing, or other supplemental benefits?
The goal is to find coverage that aligns with your healthcare needs and retirement budget.
Medicare Doesn't Have to Be Confusing
Medicare involves a lot of terminology, but the basic structure becomes easier once you understand the different pieces.
Remember:
Part A = Hospital coverage
Part B = Medical coverage
Part C = Medicare Advantage
Part D = Prescription drug coverage
Medigap = Supplemental insurance that works with Original Medicare
From there, you can compare your options based on your personal healthcare needs, prescriptions, doctors, budget, and lifestyle.
Get Help Understanding Your Medicare Options
Choosing Medicare coverage is an important retirement decision, and you don't have to navigate all of the options alone.
At Sentinel Retirement Services, we help individuals understand Medicare, compare available coverage options, and make informed decisions based on their healthcare needs and retirement goals.
Whether you're turning 65, continuing to work after 65, reviewing your existing Medicare coverage, or helping a family member understand their options, we're here to help.
Contact Sentinel Retirement Services today to review your Medicare options and get answers to your Medicare questions.
