N.Y. Comp. Codes R. & Regs. tit. 18, § 518.7
(2) The department must withhold payments under the program, in whole or in part, when it has determined or has been notified that a provider is the subject of a pending investigation of a credible allegation of fraud unless the department finds good cause not to withhold payments in accordance with 42 C.F.R. 455.23. A credible allegation of fraud is an allegation that has indicia of reliability and has been verified by the department, or the Medicaid fraud control unit, or another State agency, or law enforcement organization.
(c) The notice of withholding must:
(1)
(d) The withholding may continue only temporarily.
(4) When initiated by the department when it has determined or has been notified that a provider is the subject of a pending investigation of a credible allegation of fraud all withholding actions will be temporary and will not continue after either of the following:
(ii) Legal proceedings related to the provider's alleged fraud are completed.
(e) Appeals.
(a) Basis for withholding.