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Medicare Basics

Medicare Advantage vs. Supplement: Which Fits You?

By Jose & Marie Quintero · 3 min read

Two different structures, not two brands

Once you have Medicare Parts A and B, most people take one of two paths. A Medicare Advantage plan (Part C) replaces how you receive your benefits: a private insurer bundles your hospital, medical, and usually drug coverage into one plan, often with extras. A Medicare Supplement (Medigap) works alongside Original Medicare: Medicare pays first, and the supplement helps with the share you would otherwise owe.

Neither is the “good one.” They distribute cost and flexibility differently, and the right fit depends on how you use care.

How Medicare Advantage works

Advantage plans typically use provider networks, so your doctors and hospitals matter more than any other factor. Premiums are often low, and many plans include drug coverage and extra benefits. In exchange, you generally pay as you go: copays and coinsurance when you use care, up to an annual out-of-pocket maximum that protects you in a bad year. Plan details can change each year, which is why an annual review matters.

What Advantage plans ask of you in practice

Living with an Advantage plan means living with its rules. Depending on the plan type, you may need referrals for specialists, prior authorization for some services, and you will want to re-check the network any time you change doctors or a doctor changes groups. None of that is a reason to avoid Advantage plans; millions of people are well served by them. It is a reason to go in with your eyes open about how you will actually use care.

How a Medicare Supplement works

With a supplement, you keep Original Medicare and can generally see any provider in the country that accepts Medicare, with no referrals. The supplement helps pay the deductibles and coinsurance Medicare leaves behind, which makes costs more predictable. You typically pay a higher monthly premium for that predictability, and you add a separate Part D plan for prescriptions.

The timing rule people miss

Your Medigap open enrollment window is the six months that start when you are 65 or older and enrolled in Part B. During that window, you generally cannot be turned down or charged more for health reasons. After it closes, supplements in most states can involve medical underwriting, so this decision is easiest to make on time. Where you are in your enrollment timeline matters.

Whichever you choose, review it every year

Advantage and Part D plans can change their costs, networks, and drug lists every January, and your health and prescriptions change too. The people who get burned are almost never the ones who chose badly; they are the ones who chose well once and never looked again. An annual review takes minutes and is part of what we do for clients at no cost, year after year.

Four questions that usually decide it

• Your doctors: Are the ones you want to keep in a plan’s network, or do you want maximum flexibility?
• Travel: Do you split time between states or travel often? Nationwide access may weigh heavier.
• Budget style: Would you rather pay more monthly for predictability, or less monthly and pay as you go?
• Prescriptions: How do your specific medications fare under each option you are considering?

Answer those four honestly and the decision usually makes itself. We walk through them with you at no cost, with no obligation to enroll.

We do not offer every plan available in your area. Currently we represent 12 organizations which offer [ NUMBER ] products in your area. Please contact Medicare.gov, 1-800-MEDICARE, or your local State Health Insurance Assistance Program (SHIP) to get information on all of your options.