I'm doing telephonic CM right now. I have three years of med-surg and an MSN.
But I think that's unusual. Most of my co-workers have experience in CM, or UM/UR, or mental health. But my company is kind of a mess, lots of turnover, so that's why I think I got hired with such a lack of experience.
And I'd echo what some of the others have said, many times RNs leave after they find they miss face to face interactions and 3 12 hour shifts. So I'd think about how I'd like a business environment.
Even for someone like myself, who likes this sort of field, I find that CM is probably not the best fit. I'd probably do better with less patient interaction and more clinical data, such as UM/UR or quality or provider services. But the good thing about this field is that there are many different positions available.