What will be the impact of Obamacare on hospitals?

According to this piece in the Annals of Internal Medicine the ACA will not mean the decimation of hospitals as some have feared. The hospital has proven resilient and remarkably successful in its struggle with the ever changing payment environment over the past several decades. With every move of the target the hospital adapts to the changing rules of the game. There is no reason to think, according to the article, that that will change under ACA.