They called me and I thought they were part of United Healthcare. The agent asked for a lot of very personal information, i.e. number of people in household, names, social security numbers and bank account numbers AND MOTHER'S MAIDEN NAME. I told him no other insurance agent ever asked for that kind of information before and he would not accept a credit card number for payment. When he insisted, I hung up on him. He called me right back and said I could check him out. He told me to call his company. I told him I would check him out and guess what? I could not find him in the company register and I tried looking up his company and agent number on my state's website and they no record of him or his company. I am staying away from these guys. There is a United Medicare Advisors company in Kansas City, MO but I'm not going to use them.