Hospital chains and healthcare systems have been consolidating like crazy for decades and it's still going strong - 80 or so hospitals merge every year. PE has also been snapping up private practices like crazy, too.
https://www.kff.org/health-costs/issue-brief/ten-things-to-k...
And then … they come back to the city. Because the older you are the more medical care you need, and there just aren’t enough doctors down there, or in any other regional area.