This is the big fork in the road, and the mail won’t explain it honestly, most of it is trying to sell you one side. Here’s the plain version.
Once you have Original Medicare (Parts A and B), you’ve still got gaps: the deductibles, the 20% with no ceiling, and no drug coverage. There are two common ways people handle that.
Path one: Original Medicare + a Medigap policy
A Medicare Supplement, or Medigap, policy works alongside Original Medicare. It helps pay the leftover costs Medicare doesn’t, like that 20%, so your bills are more predictable.
What people like about it:
- Any doctor that takes Medicare. No networks. That matters if you travel, split time between states, or just don’t want to check a list.
- Predictable costs. You trade a monthly premium for fewer surprises when you actually use care.
The trade-offs:
- It’s a separate premium, and Medigap doesn’t include drugs, you’d add a standalone Part D plan.
- The best time to buy is a one-time window when you first sign up for Part B at 65, when your health can’t be held against you. Outside that window it can be harder to switch.
Path two: Medicare Advantage (Part C)
A Medicare Advantage plan changes the way you get your Medicare, usually bundling your drug coverage and sometimes extras into one plan with a yearly out-of-pocket maximum.
What people like about it:
- Often a low monthly plan premium, with everything on one card.
- A cap on your out-of-pocket spending for the year.
The trade-offs:
- You usually stick to a network of doctors and hospitals, and some care needs the plan’s approval first.
- Your costs come as you use care, and the plan’s details can change year to year, so it’s worth a yearly check.
So which one?
Honestly, it comes down to a few personal questions:
- Do you want to keep a specific doctor, or travel a lot? That leans toward a Supplement.
- Is a low monthly cost the priority, and are your doctors in the network? That leans toward Advantage.
- What prescriptions do you take, and which plan covers them best?
I’m independent, so I don’t get a bonus for steering you one way. We’ll look at your doctors, your prescriptions, and your budget and pick what fits. Tell me what’s on your mind, no cost, no pressure. The official rundown is at Medicare.gov or 1-800-MEDICARE.