Well, I agree with Cairifairy. We do have great medical care, but that's IF you have good insurance, or if you have insurance at all. I have pretty bad insurance right now, so I need to get all my birth control needs at a planned parenthood (reduced price clinic) and I'm not getting any yearly paps until I have better insurance. My insurance right now cost me about $1500 for a semester (about 5 months) but doesn't really cover much, so a trip to the doc will still cost me hundreds (or thousands) of dollars. When I've had better insurance in the past, though, it was a lot better- most things were covered almost 100%.
Our ER's are terrible, really- waiting forever just like you said and they are very very expensive. However, if a person with no money/insurance comes to an ER with a serious condition, they are not turned away. ER visits cost thousands of dollars, but some programs help out poor people to get emergency treatment.
Most people in the US can't see a specialist without a referral because otherwise insurance might not pay for it. Also, insurance often only pays for certain treatments or prescriptions. I would say, however, that once you get a referral (at least where I live) the wait is not too long, maybe a month or two, I guess depending on what you need.
But who knows what will happen, current candidates are advocating a socialized health care system. I hope it happens! I don't know if it will.