In California, a licensed counseling professional is prohibited by California law to claim to be a Christian counselor.   While there is no question that psychologists ascribe to some form of personal belief system including a belief in a greater being or power or God, that belief system is supposed to remain separate from the professional practice. 

There have been volumes of books written on the subject of "Christian counseling".   The distinction can be made, however, that while a psychologist may be a Christian in their own personal belief, the State doesn't recognize any religion or theology to be part of the licensing requirement. 

It can, therefore, be somewhat of a frustration for the seeker of counseling services to find a family or marriage counselor practicing their faith in their professional practice.  Many times, it becomes a matter of calling several phone numbers and awaiting return phone calls before a determination can be made as to whether or not a pschologist offers counseling from a Christian perspective.