Not all of it, but definitely the insurance part of it IMO.
It's hard to get an actual number, but many say nearly 1 million people work in health insurance in the US. And I'm not sure that even counts the people whose job it is to interface with them. That's a ton of jobs(and salaries) that likely wouldn't even exist in a sane system.
It is, but under "life, medical, and health" insurance, and only based on the employer not function. Any contractor like say, maintenance, janitorial, cafeteria, etc for the building would not be counted. People who work at hospitals doing nothing but insurance related work would also not be counted. That makes it hard to say definitively how many jobs would actually be affected, in my opinion.
