I have a type of cancer that isn't easy to treat but is treatable ?

After much research, I am finding out that medical centers are turning me away because my insurance only covers "80% of my bills" (Medicare), and my secondary coverage isn't good enough because it's through the state. I know of 2 treatments that could cure me and am being told to roll over and play dead. The procedures just cost to much. The medical centers don't want to give them to me because of that. Actually, I am lucky to still be alive, as I was given a shorter date of life expectancy. See I must have a shelf expectancy, as I feel like I have an expiration date stamped on me some where. I even called the"Cancer Society of America" and was denied any services. My medical coverage isn't sufficient enough for them. Nothing like being told we could help you but won't because you don't have enough money. I'd like to know where I can get a Dr that won't just milk Medicare and will actually treat me. Any ideas. And please. I'm a terminal diagnosis and being told I only have a few more years. Don't make jokes, please. I would like to live longer. I'm hopeing to get lucky and maybe someone out there knows of a place that might give me a chance for that.