What is the difference between Original Medicare and Medicare Advantage?

Original Medicare (Parts A and B) is government-run and lets you see any Medicare-accepting doctor. You can add Part D for drugs and Medigap for cost-sharing. Medicare Advantage (Part C) is a private plan that replaces Original Medicare, usually includes drug coverage, but requires using a network.

Can I switch between Original Medicare and Medicare Advantage?

Yes, you can switch during the Annual Enrollment Period (October 15 - December 7) or during the Medicare Advantage Open Enrollment Period (January 1 - March 31). However, if you switch from Advantage back to Original Medicare, you may not be guaranteed the ability to buy a Medigap policy.

Which Medicare option is better for people who travel?

Original Medicare with a Medigap supplement is generally better for travelers because it's accepted nationwide by any doctor who takes Medicare. Medicare Advantage plans often have regional networks that may not cover care outside your service area except for emergencies.

Understand your Medicare options

You don't need to pick a plan today. But knowing how the two main setups work will make everything else a lot easier — especially if you're coming off employer coverage.

The two main paths explained

It comes down to one question

Do you want to stick with Original Medicare and add what you need on top — or do you want one private plan that covers most of it for you? That's really the fork in the road.

Option 1: Original Medicare (A & B)

You stay on Medicare Parts A and B, then layer on what you need — a drug plan, help with costs, or both.

• Part D covers prescriptions if you add it
• Medigap helps pay deductibles and coinsurance
• Any doctor who takes Medicare is fair game

Option 2: Medicare Advantage (Part C)

A private insurance company runs your coverage instead. Most of these plans already include drug coverage, and they set their own copays and networks.

• One plan, one card, one place to call
• You'll likely need to use a network (HMO or PPO)
• There's a cap on what you pay each year

Which one fits your situation?

There's no single right answer here. It depends on your doctors, your prescriptions, and how you like to manage things.

Original Medicare + Medigap might be a better fit if…

• You already have doctors you don't want to leave
• You travel a lot or split time between states
• You'd rather have predictable, steady costs

Medicare Advantage might be a better fit if…

• You're OK working within a network
• You like having everything in one place
• A yearly out-of-pocket cap matters to you

What about prescription drugs?

Whichever path you go, prescriptions are a separate decision. If you're on Original Medicare, you'll need to add Part D. If you go with Advantage, drug coverage is usually already included — but the specifics vary by plan. Here's how Part D works.

Ready to figure out your next move?

The next-steps checklist will walk you through timing, what to gather, and when to actually sign up.

Get my next steps Review the basics