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October 15, 2026

Medicare Advantage vs. Medicare Supplement: Which Is Right for You?

Medicare Advantage plans bundle your coverage into one private plan, often with low premiums and extra benefits, but you usually use a network. Medicare Supplement (Medigap) plans work with Original Medicare, cost more each month, and let you see any doctor who takes Medicare. The right choice depends on your health, budget, and how much flexibility you want.

In New York, the choice is less risky than in most states, because you can switch to a Medigap plan later without health questions.

How Medicare Advantage works

Medicare Advantage, also called Part C, replaces Original Medicare with a plan from a private insurance company approved by Medicare. It covers everything Parts A and B cover. Most plans also include Part D drug coverage.

Many plans add dental, vision, hearing, fitness, and over-the-counter benefits. In exchange, you usually need to use the plan’s network of doctors and hospitals, and some plans require referrals.

How Medicare Supplement (Medigap) works

A Medigap plan works alongside Original Medicare. Medicare pays its share first, then your Medigap plan pays some or all of what’s left, like deductibles and the 20% coinsurance.

You can see any doctor or hospital in the country that accepts Medicare. Medigap doesn’t include drug coverage, so most people add a separate Part D plan.

Side-by-side comparison

Medicare AdvantageMedicare Supplement (Medigap)
Monthly premiumOften low or $0, plus your Part B premiumHigher, plus your Part B premium
Costs when you get careCo-pays and coinsurance, up to a yearly capLittle or nothing, depending on the plan
DoctorsUsually a networkAny provider that accepts Medicare
ReferralsSome plans require themNot required
Drug coverageUsually includedAdd a separate Part D plan
Extra benefitsOften dental, vision, hearing, fitnessNot included
TravelLimited outside the service area, except emergenciesCoverage anywhere in the U.S.
Switching in New YorkDuring enrollment periodsApply any time of year

Who often prefers Medicare Advantage?

  • People who want a low monthly premium
  • People who value dental, vision, and hearing benefits
  • People who are comfortable using a local network
  • People who want one card for medical and drug coverage

Who often prefers Medigap?

  • People who want predictable costs when they get care
  • People who see specialists often or have ongoing health needs
  • People who travel or spend part of the year out of state
  • People who want to choose any doctor without referrals

Why New York is different

In most states, you only get one chance to buy Medigap without health questions. After that, insurers can deny you or charge more. New York requires Medigap insurers to accept you any time of year, and premiums can’t vary by your age or health.

That means trying Medicare Advantage first doesn’t lock you out of Medigap later. Medigap premiums in New York tend to be higher than in other states at age 65, because everyone in an area pays the same rate.

Get a personalized comparison

The best plan depends on your doctors, prescriptions, health, and budget. Erie Medicare Associates compares Medicare Advantage and Medigap options from multiple carriers in Erie County, at no cost to you. Compare your options with us or call (716) 319-4613.

Frequently asked questions

What’s the main difference between Medicare Advantage and Medigap? Medicare Advantage replaces Original Medicare with a private plan that usually has a network. Medigap supplements Original Medicare and lets you see any provider that accepts Medicare.

Can I switch from Medicare Advantage to Medigap in New York? Yes. New York lets you apply for a Medigap plan any time of year, and insurers can’t turn you down for health reasons. You’d also return to Original Medicare and add Part D.

Does Medigap include prescription drug coverage? No. Medigap plans don’t cover prescriptions, so most people pair Medigap with a standalone Part D plan.

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