N.Y. Comp. Codes R. & Regs. tit. 10 § 95.5
In the event that the unlawful discriminatory practice is not eliminated voluntarily, or prior to such elimination if the commissioner deems it advisable to do so, the commissioner shall cause to be issued and served on such member or members of the respondent hospital governing body as he shall consider appropriate, a written notice with a copy of the complaint, as it may have been amended, requiring the person served to answer the complaint and to appear at a hearing before the commissioner or a hearing officer designated by him, other than the investigating officer, at a place specified in the notice and at a specified time which shall be not less than 20 days subsequent to the issuance of the notice.
N.Y. Comp. Codes R. & Regs. Tit. 10 § 95.5