No we do not. The government has screwed the system up enough, giving this government even more control is a terrible idea. Just stop enforcing monopolies, Force providers to have a clear pricing structure and let market forces deal with it.
The only problems we face is some malicious doctors requests unnecessary treatments, or malicious doctor and patient working together to request the money for treatments that didn't happen. But these are trivial fraud techniques and it happens anyway regardless of context so it can be dealt with usual criminal law system.
Because you incentivize either people being sick, or in prison. It's really as simple as that.