I applied in-person. The process took 2 weeks. I interviewed at MedResponse (Van Nuys, CA) in Jan 2013
Interview
First you must take a 50 or so multiple choice question test with questions similar to the national registry test. You have to get an 80% or so to pass, I on't fully remember. After that, you do an interview with questions like what are your strengths and weaknesses and why do you want to work here. There is also a drug test.