I like to say that the Medicare Supplement Plan G has the most bang for the buck. Plan G covers almost the exact same benefits as the more popular Plan F, although Plan G requires you to cover the Part B deductible (currently $185 annually in 2019). Basically the first time you go to the doctor in the year, you will pay the first $185. of that bill. The rest will be covered in full by Medicare and your Plan G Supplement carrier. (As long as the amounts are all approved by Medicare, but that is the same with any supplement plan). More times then not, Plan G premiums are lower in cost then Plan F premiums, even as much to have you save money if with paying the Part B deductible.
Like other Medicare Supplement plans, there are no networks of doctors on a Plan G.