For 12 years I worked as a health insurance executive and uncovered surprising skills in sales, such that within a few months I was traveling 80% to support sales, almost all domestic. Many Fortune 500 companies buying health insurance for their employees actually wanted to be sure that the person responsible for decisions regarding authorization of "appropriate" medical care was not someone too stupid to spell HMO.
It was great not having to head for the hospital randomly at 0-dark-thirty but eventually I was tired of flying cross country every week. Long days when the HQ were on the east coast (conference calls at 9 am ET but 6 am PT), then taking clients out to dinner when I was working on the west coast. I returned to my "hobby" of primary care.