For some reason I find this statement extremely hard to believe. Obviously, the range of what a doctor makes is pretty variable. But I'm willing to bet even the lower end of that range is higher than what an SA at Tom Ford makes. (Unless an SA at Tom Ford has an uncapped commission structure, and manages to haul in a whale or two each week).
Store managers, on the other hand? Maybe. I know of at least a few major retailers at which store managers easily clear $100k, and some in which they can scratch the surface of $200k. But those are exceptions to the rule, and generally, they depend on the sophistication and size of the operation. Retail is a very low-margin business, and paying doctors' salaries to employees wouldn't make a great deal of financial sense.