I used to live in a town where a private concierge-type medical practice had an office campus. I’m pretty sure they were in the news a few years ago over their refusal to take any Medicaid patients. I’m not sure about Medicare, but this is the sort of thing that might help them make a big decision on that one.
Many practices here refuse medicaid.
they only take old established patients medicare.
Hosptials are another animal.