Plans are labeled with letters. Common ones are Plan G and Plan N. The benefits for each letter are set by law, so Plan G from one company covers the same things as Plan G from another. The price and customer service are what differ.
See any doctor who takes Medicare. There are no networks. That includes doctors and hospitals anywhere in the U.S.
No referrals needed to see a specialist.
It doesn’t cover prescriptions. Most people pair a Medigap plan with a Part D drug plan.
It usually doesn’t cover dental, vision or hearing. A separate dental plan can fill that gap.
You pay a monthly premium for the plan, on top of your Part B premium.
Plans C and F are only open to people who were eligible for Medicare before January 1, 2020.
It can’t be used with Medicare Advantage.