Why Should I Buy A Medigap Policy? 
Quite simply because , as the product 's name implies , there are meaningful gaps in what Medicare Part A & B cover . This comes as a surprise to many people as they approach the age for becoming eligible for Medicare , many assume they are arriving at the promised land of 100 % coverage for their health care needs . Nothing could be further from the truth . Medicare was a creation of the early 1960 's when the average life expectancy of an American was shorter and the state of the art in health care was just a couple of steps above a witch doctor in comparison to what we take for granted in 2014 . Going into all the possible areas of financial exposure a person covered only by Medicare Parts A & B is too lengthy to go into here and other respondents have addressed some examples that you can refer to . Suffice it to say , that unless you have a really big financial next egg you can draw upon in your golden years , a Medicare supplement policy is not a luxury it is almost certainly a necessity as you will eventually have health issues whose costs exceed the coverage limits of Medicare Parts A & B . 