Two Words:
Risk Transference.
You are only one CEO away from having your salary cut or being consumed by the hospital as an employee (look around... how many services in your hospital are hospital employees?) Even worse: your contract is sold to an AMC- coulda woulda isn't worth anything at that point.
I have gone through major contract losses and acquisitions over my career. I have seen groups run out of town in the past. It sucks.
Managing that risk deserves serious consideration.
Furthermore, the compliance headaches that are coming down the pipeline will require serious staff and PP resources:
https://www.cms.gov/Medicare/Qualit.../MACRA-MIPS-and-APMs/MACRA-MIPS-and-APMs.html
I get it. I've never been part of an AMC, and frankly, I'm not a big fan of them. Never have been. I've been a private practice guy my entire career and absolutely 100% love it.
The landscape is and has been changing.... and I can't blame groups for selling early as the last ones to the table won't have much to eat.