There is already a highly functional and efficient (socialist kind) healthcare system in US. Medicare sets prices for what they are going to pay. I don't think

There is already a highly functional and efficient (socialist kind) healthcare system in US. Medicare sets prices for what they are going to pay. I don't think they negotiate. However, rest of US healthcare system is banned from using medicare system, because of structural reasons: maximize theft from population using a variety of health care organizations.