Medicare Part C (Medicare Advantage)
Medicare Part C, commonly called Medicare Advantage, is a different way to receive your Medicare Part A and Part B benefits.
Instead of getting most covered services directly through Original Medicare, you get them through a private insurance company that contracts with Medicare.
That arrangement can change which doctors you see, how you get approval for care, and how your costs are structured.
Sources: KFF, Medicare Advantage in 2026: Enrollment Update and Key Trends; KFF, Medicare Advantage in 2026: Premiums, Out-of-Pocket Limits, Supplemental Benefits, and Prior Authorization.
The Quick Answer
Medicare Part C replaces how you receive Original Medicare. It doesn't add a layer on top of it.
Most plans bundle hospital, medical, and prescription drug coverage into one plan, usually with a provider network and an annual limit on medical out-of-pocket costs.
The tradeoffs are network rules, prior authorization, and the fact that getting a Medicare Supplement later isn't guaranteed.
How Does Medicare Part C Work?
Medicare Advantage plans are approved by Medicare and must follow federal Medicare rules, even though private insurance companies run them.
New to the building blocks? Start with our guides to Medicare Part A and Medicare Part B.
What Does Medicare Part C Cover?
Medicare Advantage plans must cover the medically necessary services Original Medicare covers.
That generally includes:
- Inpatient hospital stays
- Doctor visits and specialist care
- Outpatient treatment
- Preventive services
- Emergency and urgent care
- Durable medical equipment
Hospice is the main exception.
If you enter hospice care, Original Medicare pays for it even while you stay enrolled in your Medicare Advantage plan.
Many plans also offer extra benefits Original Medicare doesn't routinely cover, such as dental, vision, and hearing.
Those extras differ from plan to plan, so check the plan's own documents rather than assuming every plan offers the same thing.
If dental and vision are a priority, see how to get dental and vision coverage with Medicare in Florida.
Does Medicare Part C Include Prescription Drug Coverage?
Most Medicare Advantage plans include Part D drug coverage.
These are called Medicare Advantage Prescription Drug plans, or MA-PD plans.
Some plans don't include drug coverage at all.
Most Medicare Advantage HMO and PPO members who want Part D must get it through their Medicare Advantage plan.
If you choose an HMO or PPO without drug coverage, you generally can't add a separate Part D plan.
Enrolling in a standalone Part D plan can automatically disenroll you from your Medicare Advantage plan and return you to Original Medicare.
A few less common plan types follow different rules, so confirm before you enroll.
How Do Medicare Advantage Networks Work?
Most Medicare Advantage plans use a provider network.
The two most common plan types handle networks differently.
HMO
Health Maintenance Organization
- Nonemergency care generally must come from network providers
- Many plans require referrals to see a specialist
- Emergency and urgent care are covered out of network
PPO
Preferred Provider Organization
- You can usually see out-of-network providers
- Out-of-network care typically costs more
- Referrals are usually not required
Networks matter most if you see specialists regularly or prefer a particular hospital system.
Before enrolling, confirm that your doctors and hospitals participate in the specific plan you're considering, not just with the insurance company.
The same carrier can offer several plans in your county, each with a different network.
What Is Prior Authorization?
Prior authorization means the plan reviews a request before it agrees to cover a service, procedure, or drug.
It's common in Medicare Advantage and is most often required for higher-cost care, like hospital stays, skilled nursing facility stays, and certain Part B drugs.
Requirements differ from plan to plan.
If you have ongoing treatment or a planned procedure, review the plan's prior authorization rules before you enroll.
If a request is denied, you have the right to appeal.
Does Medicare Part C Have an Out-of-Pocket Limit?
Yes. Every Medicare Advantage plan has an annual limit on what you pay for covered Part A and Part B services.
Once you reach your plan's annual out-of-pocket maximum, you generally pay nothing more for covered Part A and Part B services for the remainder of the calendar year.
Medicare sets a maximum each year, and each plan sets its own limit at or below it.
PPOs usually have two limits: one for in-network care and a higher combined limit for in-network and out-of-network care.
Counts toward the limit
- Copays and coinsurance for covered Part A and Part B services
- Deductibles for covered medical services
Doesn't count
- Your monthly plan premium
- Your Part B premium
- Part D prescription drug costs
- Most extra benefits, like dental or vision
- Services the plan doesn't cover
The limit protects you only for covered services. It won't cap charges for care the plan doesn't cover or didn't approve.
Original Medicare has no out-of-pocket limit on its own, which is one reason many people pair it with a Medicare Supplement.
Medicare Part C vs. Original Medicare
Both options cover the same core Medicare benefits.
The difference is how those benefits are delivered and what rules come with them. Medicare.gov has its own side-by-side comparison.
| Feature | Original Medicare | Medicare Advantage (Part C) |
|---|---|---|
| Who handles your claims | The federal Medicare program | A private insurer approved by Medicare |
| Doctor and hospital choice | NationwideAny provider that accepts Medicare | NetworkDepends on the plan's network |
| Referrals to specialists | Not required | Often requiredCommon in HMOs |
| Prior authorization | Rarely used | CommonRules vary by plan |
| Annual out-of-pocket limit | NoneUnless you add a Medicare Supplement | YesFor covered Part A and B services |
| Prescription drugs | Not includedAdd a separate Part D plan | Usually includedIn MA-PD plans |
| Dental, vision, hearing | Not routinely covered | Often includedBenefits vary by plan |
| Medicare Supplement (Medigap) | Can add | Can't be usedMedigap doesn't work with Medicare Advantage |
In short: Original Medicare gives you wider access to doctors but no cost cap on its own.
Medicare Advantage includes an annual out-of-pocket limit for covered medical services, but provider networks and plan approval requirements may affect where and how you receive care.
For a deeper side-by-side, read Medigap Plan G vs. Medicare Advantage.
Can You Switch From Medicare Advantage to Original Medicare?
Yes, during the applicable enrollment periods.
The Annual Enrollment Period runs October 15 through December 7, with changes taking effect January 1.
If you're already in a Medicare Advantage plan, you can also make one change between January 1 and March 31.
See our full guide to Medicare enrollment periods for the other windows.
Going back to Original Medicare doesn't automatically give you access to Plan G, Plan N, or any other Medicare Supplement.
Outside of protected situations, Medicare Supplement insurers in Florida can ask health questions and decline your application.
Florida also doesn't have a birthday rule that would let you move into a Medicare Supplement without health questions each year. Here's how guaranteed issue rights work in Florida.
The most common protection is a federal "trial right," which can apply if:
- You joined Medicare Advantage when you were first eligible for Medicare and leave within the first 12 months
- You dropped a Medicare Supplement to try Medicare Advantage for the first time and leave within 12 months
Other situations, like your plan leaving your area, can also create a guaranteed right. Medicare.gov lists them all on its Medigap guaranteed issue rights page.
Is Medicare Part C Right for You?
There's no single right answer.
The better fit depends on your health, your doctors, how much you travel, and how you prefer to handle costs.
May be a good fit if you
- Want medical and drug coverage in one plan
- Are comfortable using a network
- Value an annual cap on medical costs
- Want extras like dental, vision, or hearing
May not be the best fit if you
- Want to see any doctor that accepts Medicare
- Split the year between Florida and another state
- Prefer to avoid referrals and prior authorization
- May want a Medicare Supplement later
If you spend part of the year outside Florida, read Florida snowbirds and Medicare before choosing a network plan.
Before you enroll, review:
- Whether your doctors and hospitals are in the plan's network
- Whether your prescriptions are on the plan's drug list
- Referral and prior authorization rules
- The plan's out-of-pocket limit and cost-sharing
- How the plan covers you when you travel
- Whether you might want a Medicare Supplement in the future
You can compare plans in your ZIP code with Medicare's Plan Finder.
Comparing Medicare Advantage Plans in Florida
Medicare Advantage plans are approved county by county.
A plan available in Escambia County may not be offered in Miami-Dade, and the same insurer can sell several plans with different networks in one county.
Compare the specific plans offered where you live instead of assuming plans from the same company work the same way.
Plans can also change their networks, drug lists, and benefits each year, so review your plan's Annual Notice of Change every fall.
Browse Medicare Advantage plans in Florida to see which carriers offer plans in your area.
The Bottom Line
Part C changes how you receive Medicare and what rules apply to your care
Before choosing a plan, confirm your doctors are in its network, understand its approval rules, and decide whether you want to keep the option of a Medicare Supplement later.
If you're weighing Medicare Advantage against a Medicare Supplement, a licensed Florida Medicare agent can walk you through the plans available in your county.
With almost 20 years of experience, Matt Kiggins is a senior editor at Florida Insurance Guide. He provides detailed advice on Florida Medicare, life insurance, and dental coverage across forty-five states. As a reputable authority in the industry, Matt specializes in health plan selection. He holds a resident 2–15 Florida Health & Life Agent License(# P116762) and is a co-founder of Policy Guide, an insurance agency in Pensacola, FL.
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