I think in countries where the health care costs aren't as astronomically high as the US there is some form of government intervention to distort the market. And the original post is more or less arguing for a market distortion that doesn't rely on simple price signals to bring costs under control. But that is very different than what has happened in Denver's housing market.
If that expenditure does impact health insurance costs, then the rebuttal given above about increasing the supply of doctors not improving affordability fails.
If you google [National Health Expenditure spreadsheet], there's an annual spreadsheet that has includes an incredible amount of detail about where we spend money, broken down in a variety of different ways.
I think we are talking past each other. My argument is not that lower prices for medical services wouldn’t lead to lower insurance costs. My argument is specifically that increasing supply doesn’t necessarily lead to lower prices for medical services. It would be quite a finding if US cities with more doctors per capita have cheaper medical services but if anything the opposite is true