Campbell Clinic seems to have a revolving door of rotators... whereas other places at which I rotated/contacted had definite start dates for a rotation (i.e. 4-week blocks starting the first of the month or first Monday of the month), Campbell had new/different rotators starting and ending their 4-week blocks every week. I think there were as many as 6-8 at a time while I was there. Since they put you on a different service each week, this often meant that there were as many as 2-4 students on trauma at The Med, and 1 student per attending on other subspecialties... that is, the attendings that accepted students, of which there are quite a few (Beaty, Canale, Azar, Kelly, Cannon, Richardson, Jobe, Throckmorton, etc).
I'm not sure how many total rotators they have each year, overall.