I will admit I don't know all the ins and outs of Obamacare. In my province, medicare works just fine, but we are an entire province of just over a million people. My wife just had a c section and I was ecstatic with the level of care.
Having said that, it works here because we are small and the system grew up with it. I cannot fathom how this would be implemented in a country of 350 million who have private care. It seems, to me, to be logistically impossible.