Premise Makes No Sense
I know that it makes for a dark and funny show, and you could say "That's the whole point" but why does a Harvard Medical School grad who clearly cares a lot about money, vanity, and success and is a grouch and not a great guy open up a small practice to mostly help disadvantaged people in a rough part of town?
In the show it sounds like he's good at what he does. Wouldn't he have some marketability as a physician where he could make at least $300k?