From the apa website:
Psychologists and other mental health providers can choose whether or not to accept insurance. Unfortunately, many insurance companies have not increased the reimbursement rate for psychologists in 10 or even 20 years despite the rising administrative costs of running a practice. Other companies have recently cut their reimbursement rates. As a result, some plans have trouble attracting mental health professionals to participate in their networks. If your options seem limited and your insurance is provided through your employer, you might consider discussing your concerns with your human resources representative. He or she may take that into consideration when negotiating your company's plan with insurance companies in the future.
http://www.apa.org/helpcenter/parity-guide.aspx

And info on the affordable health care act for counselors:
http://www.counseling.org/PublicPoli..._Act_12-12.pdf