My husband, who is very intelligent and rational, did get hit with a Medicare Scam. He went to a Senior Citizen fair, and at one booth they talked him into have gene testing done to look for diseases like cancer. He forgot about it until it showed up on his Medicare statement. We didn't owe anything, but Medicare paid the company several thousand dollars. We looked into it and reported it. Turns out it was a 'new' scam that had already been discovered by Medicare, and the owner of the company was in jail, but not before Medicare had paid out millions of dollars. He got a new Medicare number.