Yes, you may apply to the PhD in Counselor Education and Supervision with a MA degree from another area.  Each applicant file is considered based upon the candidates merit for success as a future researcher and Counselor Educator.  Your transcript would be evaluated by an advisor to determine if you need to take MA Counseling classes to build a stronger foundation for the PhD courses. Sometimes these remedial requirements are so close to obtaining another Master's Degree that students choose to do this first.

2. Do my Master's Degree semester hours count toward the PhD in Counselor Education and Supervision?

If you Master's Degree in counseling is from an accredited college or university it is most likely your hours will transfer and be counted toward the PhD.  If you hold a MA from a CACREP accredited program the hours will transfer.