Personally, I don't know if socialized healthcare will work in the U.S. As been stated elsewhere, each country has a different system of healthcare that suits their culture. I don't know if socializing medicine will work.
However, there are a few healthcare reforms I think the government should do.
1) I am in favor of requiring people to get some form of healthcare when they reach the age of 18. This way, they can start paying into a health insurance company and start building up a fund for their medical expenses. No more getting insurance after you need it - everybody will get it before they need it in order to better spread out the costs of healthcare.
2) However, the health insurance companies should not have the power to drop their customers. If someone pays into the same health insurance company when they're 18, that company shouldn't be able to drop them when they reach 50 and start to use it. If we're going to let health insurance companies profit from the money their clients pay into it, then they should actually perform the service their clients paid them to do, and the government has the power to enforce it. Also, health insurance companies cannot refuse to pay for treatment for pre-existing conditions. If the government is going to force the people to get health insurance, which is only to their profit, then the government is going to force those health insurance companies to cover their clients.
3) No more requiring businesses to provide health insurance. I don't think businesses should pay for their employees' health insurance, or rather should not be forced by the government to do so. This is a great burden on small businesses, not all of whom can afford to provide health insurance coverage.
4) The only caveat to this is children. Children cannot help that they're too busy studying, playing, and generally being kids to afford health insurance. Children also can't help being born to poor parents. Therefore, I fully support socialized medicine for children, which may be supplemented with private insurance from their parents.
5) As a corollary to the above, I would be fine with limited forms of socialized healthcare. Among these are checkups and fully socialized healthcare for mental wellness, for dentistry and orthodontics, and for optometry. I think those are all health concerns that are so common and easily dealt with that here would be few problems in socializing those areas of medical treatment.