Original Medicare or Medicare Advantage: the two paths

Almost every Medicare conversation eventually arrives here. It's worth understanding the shape of the choice before anyone shows you a single plan.

Path one: Original Medicare, plus coverage

You stay in the government programme. Parts A and B pay your claims, and you add two things on top:

• a Medicare Supplement (also called Medigap) to cover most of what Original Medicare leaves you owing, and
• a separate Part D plan for prescriptions.

What you get. Any doctor or hospital in the country that accepts Medicare — and most do. No network to check, no referrals, no prior authorisation from a plan. If you split the year between Utah and somewhere warmer, or you travel, this matters a great deal.

What you trade. You pay more every month, whether or not you use anything. You're paying two premiums on top of Part B, in exchange for predictable costs when you do need care.

Path two: Medicare Advantage

A private company approved by Medicare takes over. The plan bundles Parts A and B, usually includes drug coverage, and often adds dental, vision, hearing, or a fitness benefit that Original Medicare never covered.

What you get. Lower monthly cost — sometimes nothing beyond your Part B premium — plus extras and the convenience of one card and one company.

What you trade. A network, so which doctors and hospitals you can use is defined by the plan. Care may need approval in advance. And your costs are lower when you're well and higher when you're not, up to an annual maximum the plan sets.

The questions that actually decide it

Forget the brochures. These five tend to settle it:

1. Are there doctors you're not willing to give up? Write down their names before you look at anything. On path two, that list either is or isn't in the network.
2. What medications do you take? Both paths involve a drug plan, and the same medication can be treated very differently from plan to plan.
3. Do you travel or live somewhere else part of the year? Networks are geographic. Original Medicare isn't.
4. How is your health likely to go? Nobody knows, but a diagnosis you're already managing is a fact, not a guess.
5. Which do you find harder — a bill you didn't expect, or a premium you pay every month even when you're fine? This is a temperament question, and it's a legitimate one.

The part people don't hear until it's too late

You can switch between these paths later. But going back to Original Medicare and picking up a supplement can require answering health questions, and the company can decline you.

That's the asymmetry worth understanding at 65: one direction is generally open, the other may not be. It doesn't mean path two is a trap — millions of people are well served by it — but it does mean the first decision deserves more thought than the ones after it.

There's more on that timing in the enrollment windows and in how supplements work.