I should have explained a bit more. The system would not be like insurance companies. It would be more like a law that required all healthy people to pay into a common health fund for the particular group of people covered by one doctor or primary physician. I'm not sure what the ideal size of groups would be, but whatever provides the best health options for the money paid into the fund. Anybody that wants to make choices against the doctors recommendation would have to sign a waiver and then keep paying at the healthy level of payment. The whole structure of this system would be structured to keep people as healthy as possible for as long as possible. People are going to die and when that happens someone new will be assigned to that position in the group, so that the total number of people under one doctor remains constant.