I applied through college or university. I interviewed at Epic (Chennai) in Dec 2014
Interview
It was a campus interview. Initial written test consisting of aptitude skills test and coding challenge. You have to finish the challenge fast to get shortlisted! They asked some general questions like why do want to work for Epic? and why do you want to come to US? etc.
I applied online. The process took 4 weeks. I interviewed at Epic (Verona, WI) in Jan 2015
Interview
I applied through a link found on indeed. I was asked to schedule a phone interview and an online assessment. After both phone and online assessment, I was flown onsite to attend in person, 1:1 interview.
The phone interview consisted of some basic question followed by a mathematical problem. Online assessment coding and mathematical problems.
Interview questions [1]
Question 1
Design a database system to support urgent care calls.
I applied through other source. I interviewed at Epic in Mar 2017
Interview
I applied in person at a career fair. Next was a phone interview. After that was a proctored skills test. I put two hours of effort into it and another two hours of "well, maybe this'll work" (no compiler was allowed) before I gave up and submitted. I was not asked to continue after that.
Interview questions [1]
Question 1
There was a large section that gave a specification for a (regular, I think) language, with questions asked on valid syntax and meaning within that language.