The interview process at athenahealth is a technical prescreen (take home coding problem), with an on-site that consists of a culture fit session, two technical interviews, and a sell (where they try to convince you to take an offer if you get one). Athenahealth is very good about getting back to you quickly if they decide to extend an offer.

Unfortunately, the recruiters at athenahealth haven't figured out that it's polite to send a rejection email if they're not going to move forward, so you can just assume that if you haven't heard anything from them in 48 hours, you don't have an offer.

Interview questions test your ability to think about problems in a simple and effective way. I'm happy to describe the interview process, but honestly, if you can't pass a company's technical interview without looking up the answers, you would be a poor fit at the company.