I don't have a paper copy with the specific orders, but hopefully this will get you the info you need. Long story short: there are 6 tracks total. The "big 3" of IM, peds, and surgery are always in the same semester, and the shorter blocks are always in the same semester. But the order of the semesters themselves and the order within the semesters varies.
Long blocks: IM (8 wks), surgery (8 wks), and peds (8 wks)
Short blocks: OB (6 wks), FM (6 wks), neuro (4 wks), psych (6 wks), ophtho (1 wk), and Embark (1 wk - basically a free week to work on your research project)
I think it would be reasonable to call the admissions team and ask this if it's something that will affect your decision.