Paying for medical school *is* stressful, and $100k is nothing to sneeze at regardless of what other schools' numbers are. But TheKMan is correct in that Stanford does have a relatively "low" amount of avg indebtedness for its students compared to peer institutions.
From what I understand, Stanford has has a "matching" program in place for middle income students in which it will match family contribution up to a certain amount ($10k?). The financial aid presenter explicitly told us that their lower debt numbers are in large part because they are able to incentivize families to contribute to students' tuition.
I'm not a current student, so I can't speak more about the fin aid situation, but I did receive an acceptance call just a few days ago and so am excited to hopefully see many of you at revisit!