How does the ACA have anything to do with people who pay out of pocket?

WTF?

So the fees for us that pay out of pocket (he isn't covered under my insurance) are going up because of the ACA? I just find this so hard to believe... I'm trying to figure out why he would do this. It's up by $45, which, in my opinion is quite a lot money.

Have any of you guys experienced something similar?

I'm now looking for a new psychiatrist, which is not easy in my town.

I heard he was one of the best, so I was willing to pay out of pocket for him. But I feel like dumping him now that I got a letter blaming this all on the ACA. I'm confused. Sigh.