The first phone call you receive is easy: just a basic phone call asking why epic. You are then required to take a reasoning test. Very intense, they watch you take it. Was decently difficult. Didn't make it past and didn't expect to.
I applied online. I interviewed at Epic (Washington, DC) in Aug 2016
Interview
I only had a telephone interview. It was short and concise. They did not really care so much about what my major was, just the experience. They also did not ask much about professional work experience.
There is a serious of hoops to jump through. Easy online app, laid-back phone interview with existing PM, rigorous skills testing, and then an all-day F2F interview/tour of the campus.
Interview questions [1]
Question 1
They provided case studies to show your ability to problem-solve increasingly escalated situations.