How far do you think we should go in changing our basically private system into one which is more socialist?

Consider the right to health care and the obligation to treat those who can’t afford to pay for it. Is this obligation a collective one to be born by the whole medical profession, or does it require every individual doctor to do at least some pro bono service at some time during their career? If there is a right to healthcare, how can we best make sure that those who face discrimination don’t get left out? How far do you think we should go in changing our basically private system into one which is more socialist? Is a multi-tiered system, which guarantees that the lowest tier is adequate, compatible with the demand that the right to health should be guaranteed to everyone? How should it be financed? Give reasons for holding your view.