A lot of billing services will start by targeting mental health providers. They are fairly easy in terms of billing as they only use a handful of cpt codes, and not a wide range of icd 9's. There are social workers, psychologists and psychiatrists and they tend to be plentiful. Most of these providers do not have a lot of office staff since they don't see as many patients an hour like a family practice dr. Starting with newer drs is good too, since they usually need more help. You can offer to assist them with credentialing, or other start up processes.Good luck!Michele