Its a pervasive problem in Canada, primarily with specialists, even in populated areas. My girlfriend had to wait 6 months for a gastroscopy, is 3 months into a wait for a PH test, and about 4 months out from surgery for badly progressed Barret's syndrome.
Canadian healthcare works fine for basic checkups and doctor visits, but fails miserably when it comes to spcialists. Finland, highly lauded as one of the best socialized healthcare systems as well, suffers the same problem: my Aunt died during the waiting period from Breast Cancer because of the nonsense, and had previously lost the 'doctor lottery' which is a way to describe how you get screwed if the doctor you're assigned to there is terrible. This is what the 'death panel' talk is really about, insane waiting lists that kill needing patients because they didn't get priority.
The problem with US healthcare costs is mostly related to emergency care and major procedures, which tends to have problems in every socialized medicine implementation in the world as well. Yeah, I think costs could come down as well as basic preventive medicine be more practiced by standardizing basic visits and screenings, which hopefully the ACA will help with. However, I'm against making the other half of the pie public. There's a reason there's tons of doctors offices on the US side of the Canadian border...they scoot over the border to get immediate care needs and specialist services.