A few years back there was a scandal where a whole chain of mental health facilities was doing this. They would buy local mental hospitals, not change the name of disclose that they’d been bought, and start committing everyone, no matter what, for exactly as long as their insurance would cover, then kicking them to the streets.

Took me a bit to dig up the story – it was these guys:

https://www.buzzfeednews.com/article/rosalindadams/intake