I didn't really think to Google him at first, since I was mainly focused on my clinical job. As the cycle progressed with no acceptances, however, then only did I think of getting new LOR's, since that's one area that I think I can improve (by getting strong letters this time). So I just searched him up recently to see if he had a troubled past just in case AdComs look him up, and looks like he did. :/
I mean I don't absolutely need it, but having a really strong LOR from a physician is something I lacked this cycle (I had a physician letter, but I think it was weak), so I was thinking to improve in that sense in case I need to reapply.