Hi Guys! Current DPMS TA here. I remember being in your shoes about 2 years ago and also feeling frustrated regarding the wait time and how relatively short notice acceptances are. As someone mentioned above, there are a multiple factors that go into why the decisions are so 'late', one of them being that the medical school faculty is still conducting interviews for the medical school and they are also the ones that interview prospective DPMS students.
When I was applying 2 years ago I didn't receive an interview invite until April 27th.
I know it's hard right now but if you have already completed your application use this time to relax, spend time with friends and family, and if you're still finishing undergrad, use this time to finish strong!!
Feel free to reach out with any questions