Ski is right, teaching duties and things that trickle down from that are probably the most major differences. In PP, you’re probably going to see more total numbers of cases and you’ll likely get more hands on experience, solely because there’s fewer people “in line” to share cases and experiences with. Meaning you won’t have to share cases and procedures with as many other interns/residents and students. Some apps might not see as many complex cases if they’re not equipped personnel or equipment wise, but this is definitely highly variable. The PP training programs I’ve seen still have rounds times, but not nearly as extensive as are worked into academic places. In academia, you’ll probably have much easier access to other specialists, though there’s definitely some private practices that have in-house ancillary teams like radiology, pathology, anesthesia, etc. But at my private practice internship we had to plan and run our own anesthesia (or more accurately tell the techs what to do then they monitor) where you wouldn’t have those duties in academia or at a larger PP. Also, in PP, you’ll more than likely have to do all your own paperwork, where in academia the students do a lot of that for you. Of course that has the tradeoff that you have to read and edit someone else’s work. PP usually pays more than academia, but academia has historically been eligible for PSLF, though who knows how that will play out in the future. Historically academia was regarded as superior to PP, but that’s really evolved in the last decade and there are great PP programs too. I do think people should have more of a “buyer beware” attitude and vet PP places harder because any place can start an internship, but in the end, they’re both fine and they both have pros and cons.