Medicare ripoff

I received a call yesterday from what I believe to be one of many 'Health Insurance 'for profit' companies.  They asked if I had any back, knee, etc. aches or pains.  When I said no and asked why they asked that question, they replied , "we have these  'braces' to help you".  All you have to do is get your Dr. to write a prescription, then Medicare will cover part of all of the cost.  These apparently private companies are out for huge profits at the expense of our Medicare System.  I think they are taking advantage of seniors who don't understand that our System is being raped by their suggestive methods that we need their products.  Drs. can have a hard time saying no to a patient who is convinced this 'product' will make their lives so much better.  No wonder Medicare is in the red.  There must be a way to stop these for profit companies from their questionable tactics and soon.....................marge