Before the license of any licensee or any registration or certificate is suspended or revoked by the board, a written copy of the complaint made shall be furnished to the licensee, registrant and certificate holder against whom the same is directed and an opportunity be afforded him or her to be heard before the board, personally and by counsel. At least ten days' written notice of the time and place of such hearing shall be given the licensee, registrant or certificate holder by registered mail addressed to the post office address as shown on the annual registration or other record or information in possession of the board.
63 P.S. § 124