You just turned 65, you’ve got your Medicare card in hand, and now you’re staring at a stack of mail from insurance companies. Half of them say “Medicare Advantage” and the other half say “Medicare Supplement.” They sound like they do the same thing. They don’t. Picking the wrong one could cost you thousands of dollars or lock you out of the doctors you trust.
Let’s break down how Medicare Advantage and Medicare Supplement plans actually work, what they cost in 2026, and which type of plan tends to work best for different situations.
How These Two Plans Work Differently
Medicare Advantage (Part C) replaces your Original Medicare. A private insurance company takes over your Part A and Part B coverage, and most plans bundle in prescription drug coverage too. You’ll typically pay a low monthly premium, sometimes $0, but you’ll owe copays each time you visit a doctor or get a procedure done.
Medicare Supplement (also called Medigap) works the opposite way. You keep Original Medicare as your primary coverage. Then Medigap kicks in to pay for the out-of-pocket costs that Original Medicare doesn’t cover, like copays, coinsurance, and deductibles. You’ll pay a higher monthly premium, but your costs when you actually get care drop dramatically.
You can’t have both at the same time. It’s one or the other.
What You’ll Actually Pay in 2026
Medicare Advantage premiums average about $14 per month in 2026, according to the Centers for Medicare & Medicaid Services. That’s down from $16.40 in 2025. Sounds great on paper. But there’s a catch. Every time you see a specialist, get lab work, or need a hospital stay, you’re paying copays and coinsurance that can add up fast. The federal out-of-pocket maximum for Medicare Advantage is $9,250 in 2026, though many plans set lower limits.
Medigap premiums are higher upfront. In Texas, a 65-year-old woman might pay $100 to $150 per month for Plan G, one of the most popular options. But after that monthly premium, your costs at the doctor are close to zero. Plan G covers almost everything except the Part B deductible, which is $283 in 2026.
The Part B premium for 2026 is $202.90 per month regardless of which route you choose. You’re paying that either way.
Doctors, Hospitals, and Where You Can Get Care
This is where the two plans split the widest. With Medicare Supplement, you can see any doctor or hospital in the country that accepts Medicare. No referrals. No network restrictions. If you travel between Victoria and Houston for care, or if you snowbird to Arizona in the winter, your Medigap plan follows you everywhere.
Medicare Advantage plans use provider networks, similar to the employer insurance you may have had before retirement. HMO plans usually require you to stay in-network except for emergencies. PPO plans give you more flexibility but charge higher copays for out-of-network care. If your cardiologist or oncologist isn’t in the network, you could be looking at the full bill.
Prescription Drug Coverage: A Key Difference
Most Medicare Advantage plans include Part D prescription drug coverage built right in. With Medigap, you’ll need to buy a separate Part D plan. In 2026, the average standalone Part D premium is about $34.50 per month. The annual out-of-pocket cap for prescriptions is $2,100 for 2026.
Either way, you’re getting drug coverage. The question is whether you want it bundled or separate.
Which Plan Fits Your Life?
Medicare Advantage tends to work well if you’re relatively healthy, you live in one area, and your doctors are all in the plan’s network. The low premiums free up monthly cash flow, and the extra perks like dental, vision, and hearing coverage are a nice bonus. About 48% of Medicare enrollees are expected to be in Advantage plans for 2026.
Medicare Supplement tends to work better if you have ongoing health conditions, see multiple specialists, or want the freedom to go anywhere without worrying about networks. The higher monthly premium buys you predictability. You’ll know almost exactly what your healthcare will cost each month, regardless of what happens.
One more thing to consider. If you skip Medigap when you first become eligible and try to buy it later, you may have to go through medical underwriting. That means the insurance company can deny you or charge more based on your health history. Your Medigap Open Enrollment Period starts the month you turn 65 and have Part B, and lasts six months. After that window closes, it gets harder.
Talk to Someone Who Can Walk You Through It
Every person’s situation is different. Your health, your budget, your doctors, your medications, where you travel, all of it factors into the decision. Fabian Ramirez Insurance Agency has been helping folks in Victoria and the Crossroads area navigate Medicare for over 18 years. Call Fabian at (361) 652-3005 for a free, no-pressure conversation about which plan makes sense for your life.
