Does this help. You still need a supplemental plan to pick up the difference if you have Part B. At one point I was going to opt out of Part B but was advised not to. It could have cost me lots of money if I had any medical crises. So I still carry Part B taken out of my SS. Part A is automatic. I do not carry Part D as I do not have any prescription drugs and hopefully never will.

http://www.medicareplanstoday.com/me...dicare-part-b/