Original Medicare vs. Medicare Advantage

Original Medicare and Medicare Advantage are the two main ways to receive your Medicare benefits. This page compares how they handle providers, costs, and extra benefits so the differences are easy to follow.

At a glance

Original Medicare vs. Medicare Advantage — At a glance
	Original Medicare (A & B) Original	Medicare Advantage (Part C) MA
What it is	The federal program: Part A for hospital care and Part B for medical care	A private plan that bundles Part A, Part B, and usually Part D
Provider choice	Any provider nationwide that accepts Medicare	Usually limited to the plan's network
Out-of-pocket limit	None on its own; a Medigap policy can help	Yes; an annual cap on in-network covered costs
Drug coverage	Add a separate Part D plan	Often built into the plan
Extra benefits	Not included	May include dental, vision, hearing, and fitness

One program, two delivery methods

Original Medicare is the federal program made up of Part A for hospital care and Part B for medical care. You can see any provider in the country that accepts Medicare, and you can add a separate Part D drug plan and a Medigap policy to fill gaps.

Medicare Advantage, or Part C, is a private plan that delivers the same Part A and Part B benefits, usually through a network. These plans often include drug coverage and extras like dental or vision, and they place an annual cap on your in-network out-of-pocket costs.

The out-of-pocket cap

Original Medicare has no built-in limit on annual out-of-pocket spending, which is why many enrollees add a Medigap policy, whereas Medicare Advantage plans include an annual maximum on covered in-network costs.

Where to find it in your policy

The Summary of Benefits

A Medicare Advantage plan's Summary of Benefits lists copays, the out-of-pocket maximum, and included extras, which you can compare against Original Medicare's standard cost-sharing.

The Evidence of Coverage

The Evidence of Coverage details the plan's network rules, prior authorization requirements, and referral process.

The provider directory or formulary

The plan's provider directory and formulary confirm whether your doctors and prescriptions are covered before you enroll.

What it looks like on a real claim

Example 1 — Choosing a doctor

You want to keep seeing a specialist across the state.

Original Medicare (A & B)

You can see that specialist as long as they accept Medicare.

Medicare Advantage (Part C)

You may need the specialist to be in network, or pay more to go outside it.

Example 2 — A costly year of care

You face a serious illness with high medical bills in one year.

Original Medicare (A & B)

Cost-sharing continues with no annual cap unless a Medigap policy covers it.

Medicare Advantage (Part C)

Your spending on covered in-network care stops once you reach the annual out-of-pocket maximum.

The bottom line

Original Medicare offers broad provider freedom and predictable rules, while Medicare Advantage bundles coverage with a network and a spending cap, often adding benefits Original Medicare does not include.

Comparing each plan's documents with your own doctors, prescriptions, and budget is the most reliable way to see how the two would work for you.

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