N.C. Gen. Stat. § 90-113.33A
The President or other presiding officer of the Board may administer oaths to all persons appearing before it as the Board may deem necessary to perform its duties, and may summon and issue subpoenas for the appearance of any witnesses deemed necessary to testify concerning any matter to be heard before or inquired into by the Board. The Board may order that any client records, documents, or other materials concerning any matter to be heard before or inquired into by the Board shall be produced before the Board or made available for inspection, notwithstanding any other provisions of law providing for the application of any counselor-client or physician-patient privilege with respect to such records, documents, or other materials. All records, documents, or other materials compiled by the Board are subject to the provisions of G.S. 90-113.34, except that in any proceeding before the Board, record of any hearing before the Board, and notice of charges against any person credentialed by the Board, the Board shall withhold from public disclosure the identity of a client, including information relating to dates and places of treatment, or any other information that tends to identify the client unless the client or the client's representative has expressly consented to the disclosure. Upon written request, the Board shall revoke a subpoena if, upon a hearing, it finds that the evidence sought does not relate to a matter in issue, the subpoena does not describe the evidence with sufficient particularity, or the subpoena is invalid.
N.C. Gen. Stat. § 90-113.33A