Received an email to interview with center manager the next day. She basically told me up front the salary and the commission structure. She only asked me to tell her about myself. Several weeks later I drove about 80 miles to interview with an area manager. The questions were basic interview and some behavioral questions.

Very quick interview and process overall. One interview with several people including the district sales manager. Basic interview questions- why you're a good fit, experience, strengths, weaknesses, etc. Then some role playing pretending you're the sales rep to a doctor, how you would sell the product (knowing very little about the product). There were several little role play exercises, but nothing too difficult or out of the ordinary.