Universal health care is like communism: it looks good on paper. However, if we are going to have universal health care in the states, there would need to be massive changes. First off, there would need to be government change. So far, every social program that the government has made, it screws up. Take a look at public education. Public schools tend to bring out less results than private schools, while spending more per student. But the problem is this: Not everyone can afford private schools, so most have no choice but to send their kids there. It's not until the vouchers have come along, and forced the public schools to compete that change hasn't happened.
The same could be said for universal health care. If we only make ONE healthcare bureacracy, then they have no competetion. There is no need for them to approve, because no matter what hospital a person would go to, they still have only one plan. Since your government has set the price, you have to pay for it, no matter if you disagree with it or not. Another thing, doctors have to pay a lot of malpractice insurance because of frivolous lawsuits. One the of the main reasons health care costs go up is because of skyrocketing malpractice rates. Now, the government would have two options: still pay doctors the same, and force doctors out of business when they can't pay their malpractice insurance; or two: raise the doctor's salaries, and then the costs from the taxpayers go up. Is the government also going to handle the doctors' malpractice insurance? I sure hope not.
Don't get me wrong, I think the concept sounds great. However, I think the best first step would be where you could waive payment of this system from your paycheck. That way, people could still have their private health care system, and not have to participate in the universal system. This would mean that the universal system would be forced to compete with the other systems, and would be forced to find cost-effective, high-quality solutions.
Competition always brings about good change. Back in the days of the model T, you could buy it in any color you wanted, as long as it was black. Nobody else really bought any other car, because their weren't any other cars. When other car companies started offering cars in different colors, Ford was forced to compete, and offer new colors for their model T. Competition brings about reform and change.