I would welcome a link to the analysis you point if you wish, but this is very reductive. There are a million markets with information asymmetry and work just

I would welcome a link to the analysis you point if you wish, but this is very reductive. There are a million markets with information asymmetry and work just fine, and there are plenty of examples of cash-pay systems that work reasonably well for healthcare. I disagree with OP that the problem is price transparency, but the healthcare market in the us is intervened in ways that prevent the classic workings of a market.