Healthcare, redux

I don't pretend for a moment to know anything about the intricacies of the healthcare system. So what you see below is just common sense. Mine, of course.
So, how do we effect the conversion of our actual disaster into a universal healthcare system? Okay, first, from the pharmaceutical side. We become the sole customer of all the meds sold in this country. Thus, we can bargain with big pharma about how much is a fair price for medications. Competition goes out, but a fair price is negotiated. Stockholders hang in, because they know they have been sucking the blood out of their countrymen for way too long. There will be an "adjustment", and life will go on.
Then from the doctor side. Again, all billing goes to the government. Again, fair prices are established, and paid. Anyone caught padding loses the right to practice. Medicare, but honestly done. And so on, down the line. Nursing, medical equipment, home care, you name it, the government runs the show, and fairness is injected into the market. Do we need money to undertake this? Yes. Wars ended will help. An economy revived will help. A healthier, working populace will help. Taxes, of course will be major. And of course, bipartisan legislation enabling it all.
Before you tell me it can't be done, pelase look to France, UK, and Canada. They are my best arguments for why it can be done. We can learn from them. When should we start? Now.