I'm a medical student. In college I worked in a private practice office for surgeons (though not plastics). On the wards, I rarely interact with people doing sales (I actively avoid them, no offense) -- though on surgery, it's impossible since they end up being in the OR.

The thing that has surprised me is how much influence the office workers have on the physicians. Since your product has the potential to be fun for the office workers, this could really be an in. If you can get a physician assistant on your side, you've pretty much won the game, IMHO.

If people are offended ("What, you think I need a nose job?") you could switch it up and let office workers modify other office members with consent ("Hah! I want to give John a calf implant!").