Medicare Advantage vs. Medigap: The Real Difference | Bluegrass Medicare Help
๐Ÿ“ Lexington, Kentucky  ยท  Serving Fayette & surrounding counties โ˜…โ˜…โ˜…โ˜…โ˜… 5.0 on Google

← All articles

Compare Plans

Medicare Advantage vs. Medigap: The Real Difference

Prefer to read? The full written breakdown is below.
Read the transcript

Lightly edited for readability.

What is the difference between a Medicare Advantage plan and a Medicare Supplement plan? Most individuals on Medicare had to choose between one or the other, whether they knew it or not.

First off, a Medicare Supplement and a Medicare Advantage plan are really trying to do the same thing. They're trying to cover gaps in Original Medicare. I'm going to explain those gaps very quickly, and hopefully in plain English.

Medicare, as simple as this, will cover 80% of your medical bills, leaving you on the hook for 20%. Let's do a quick scenario. Let's say we have a $100 medical bill. Medicare is going to say, okay, we'll pay 80% of that. You, on the other hand, are left with the additional $20.

That sounds great and all, except on Original Medicare there's no maximum out-of-pocket. Like most employer plans, and especially Affordable Care Act plans, they all have a maximum out-of-pocket. Think of a maximum out-of-pocket like a safety net, an amount at which the insurance company or Medicare would stop billing you. Medicare does not have that.

So let's go back to the 80/20 scenario. A $100 bill, we can cover that. Medicare's going to pay 80, you're going to pay 20. Now let's say we're diagnosed with cancer, heaven forbid. Ongoing treatments, and we all know in today's world medical bills and medical treatments are skyrocketing through the roof. Let's say we get caught with a $100,000 bill. Medicare's still going to say, okay, we're going to cover 80, we'll cover $80,000. But with no maximum out-of-pocket in place, you're on the hook for $20,000. And I don't know about you, but I don't know many people who have $20,000 lying around for medical expenses.

So a Medicare Advantage plan and a Medicare Supplement at the end of the day are really trying to solve the same problem. They just do it a bit differently. I tell all my clients that one is not better than the other. It really depends on your preferences, your lifestyle, your current health, your doctors and your prescriptions. We do all that in-house.

Now let's dive into a Medicare Supplement plan. A Medicare Supplement plan, also known as a Medigap plan, in simplest terms is this: you cut a check each month to an insurance company, and in return that insurance company is obligated to cover your 20% for you.

There are no networks when it comes to a Medicare Supplement, so you can go anywhere in the country, to any doctor that accepts Medicare, and that's about 99% of doctors. So if you like flexibility, if you might travel a lot, a Medicare Supplement might be a good option. There are generally no referrals.

Quick recap: a Supplement plan means you're going to pay a premium every month, a dollar amount premium every month, to an insurance company for them to cover your 20%. There are a few different types of Medicare Supplement plans, which we'll get into in another video, but that's the general gist of it.

Think of a Medicare Supplement as pay regardless. If you enroll when you turn 65 and you sign up for a Medicare Supplement, you're going to pay for that plan every month whether you use it or not. No matter if you're the healthiest person in the world, you're still going to pay for that Medicare Supplement.

The next thing on a Medicare Supplement: they do not cover prescription drugs, or dental, vision and hearing coverage. So if that's something you need, and prescription drug coverage is a must, you need to go out and get a prescription drug plan. We do all that in-house. But a prescription drug plan would need to go along with your Medicare Supplement.

All right, shifting gears. Now let's talk about a Medicare Advantage plan. These are the ones you see all over TV. They get advertised quite a bit today. Medicare Advantage plans are also known as Part C plans. Think of Part C as C for complete, and the reason for that is it really wraps everything into one plan. So your medical, your drugs, your dental, vision and hearing, all wrapped into that same plan. You can use that same card whether at the pharmacy, whether at the dentist, whether you're getting your eyes checked. One card, same plan.

I like to think of them as pay as you go. When something comes up, we're going to have what's called a copay. Think of a copay as just a flat dollar amount for that service. So let's say you get an X-ray. On a Medicare Advantage plan we would pay a flat dollar amount for that X-ray. Each Medicare Advantage plan does have a maximum out-of-pocket, meaning there is a safety net in place, the most you can pay in a given year on a Medicare Advantage plan.

There are some drawbacks to a Medicare Advantage plan. On a Supplement there's no network: you're going to pay each month, but you're going to have the flexibility to go anywhere in the country. Medicare Advantage plans are a little different. You are going to be tied to that plan's network, meaning that Medicare Advantage plan's insurance company can tell you what doctors you're able to go see and what doctors they're willing to pay for you to go see. So it's very important to realize that Medicare Advantage plans can tell you what doctor you can and cannot see. A lot of times you need referrals on a Medicare Advantage plan. Some carriers are doing away with that, some still have it, but keep that in mind.

If you still have some questions, reach out to the office. You can sit down with me or another advisor here in the office, and we would happily walk you through the differences as they pertain to your situation.

My name is Austin Tyler. I'm with Tyler Insurance Group here in Lexington, Kentucky. We're a local Medicare advisory firm that does this all day, every day. We help seniors and people turning 65 navigate their Medicare coverage. You can reach us at (859) 618-6443. Hope to hear from you soon, and as always, have a great rest of the day.

This is the question I get more than any other: "Should I go with a Medicare Advantage plan or a supplement?" Both are popular, both are legitimate, and the right answer genuinely depends on the person. But most folks are comparing them on the wrong things โ€” usually just the monthly premium. Let me show you what actually matters.

First, what they're both trying to fix

Original Medicare (Part A and Part B) is good coverage, but it has gaps. After your deductibles, Part B generally pays about 80% and you pay the other 20% โ€” with no cap on what that 20% can add up to in a bad year. In 2026 the Part B is $283 and the inpatient hospital deductible is $1,736 per .

There are two different ways to deal with those gaps. You pick one:

The side-by-side

 Medicare AdvantageMedigap (Supplement)
Monthly premiumOften low or $0 (you still pay your Part B premium)Higher โ€” a set monthly premium
DoctorsNetwork-based (HMO/PPO); referrals & prior approval commonAny doctor or hospital in the U.S. that takes Medicare
Costs when you get careCopays & as you go, up to a yearly Little to nothing at the point of care (depends on plan)
Drug coverageUsually built inSeparate Part D plan needed
Extras (dental, vision, etc.)Often includedNot included
Best forLower upfront cost, OK with a networkPredictability & freedom to go anywhere

The trade-off in one sentence

Medicare Advantage usually costs less when you're healthy; Medigap usually costs less when you're sick. Advantage keeps your monthly bill low but you pay as you use care, within a network and sometimes after . Medigap costs more every month but smooths everything out โ€” you can see almost any doctor, and your bills are predictable even in a rough year.

If you're here in the Bluegrass, the network question usually comes down to one thing: is your hospital covered? See Which Lexington Hospitals Take Medicare Advantage? for how UK HealthCare, Baptist Health, and CHI Saint Joseph fit in โ€” or the full local Medicare guide for Lexington.

Good news on drug costs either way. Starting in 2025, Medicare put a hard cap on what you pay out of pocket for covered prescription drugs each year. In 2026 that cap is $2,100. It applies whether your Part D is built into an Advantage plan or it's a standalone plan paired with Medigap.

The part most people miss: medical underwriting

Here's the catch that makes this decision bigger than it looks. When you first turn 65 and enroll in Part B, you get a 6-month Medigap Open Enrollment Period. During that window, a supplement company must sell you a policy โ€” they can't turn you down or charge you more for your health history.

After that window closes, in most states โ€” Kentucky included โ€” buying or switching a Medigap policy can require . That means the insurer can review your health and deny you or charge more. (Only a handful of states, like New York and Massachusetts, guarantee Medigap year-round.)

Why does that matter for this choice? Because if you start on Medicare Advantage and later decide you want the freedom of Medigap, you may have to pass underwriting to get it โ€” and if your health has changed, that door can be hard to open. It's not impossible, and there are special situations that protect you, but it's the single most important thing to understand before you choose.

Bottom line: Don't pick on premium alone. Think about the doctors you want to keep, how predictable you need your costs to be, and the underwriting rules down the road. That's a 15-minute conversation โ€” and it's worth getting right the first time.

Still torn between Advantage and Medigap? You can get a free, no-pressure Medicare review. A local Kentucky agent will compare both against your own doctors and prescriptions โ€” at no cost.

Quick recap

Original Medicare leaves gaps with no cap on your share โ€” you fill them with either Medicare Advantage or a Medigap supplement.
Advantage usually costs less monthly but uses networks and prior authorization.
Medigap costs more monthly but lets you see almost any doctor, with predictable costs.
A separate Part D drug plan pairs with Medigap; Advantage usually builds drug coverage in.
Switching from Advantage to Medigap later can require medical underwriting in Kentucky โ€” so choose carefully up front.

Test what you learned

Five quick questions — pick an answer to see if you're right, and why.

Not sure which one fits your life?

Take the 2-minute "Advantage or Supplement?" quiz, or call me and we'll talk it through for your situation โ€” no cost, no pressure.

Find your fit →

Or call me directly: (859) 618-6443

This article is general information, not advice for your specific situation, and Medicare rules and figures can change. 2026 amounts are from CMS. Tyler Insurance Group is not connected with or endorsed by the United States government or the federal Medicare program. We do not offer every plan available in your area. Currently we represent 6 organizations which offer 158 products in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Program (SHIP) to get information on all of your options.