N.Y. Comp. Codes R. & Regs. tit. 2, § 337.5
(a) The Comptroller may, once each year following the retirement of a member on a disability allowance, and upon the beneficiary's application shall require such disability beneficiary to undergo a medical examination. No examination upon a beneficiary's application may be required until one year following the final determination granting disability retirement. Such examination shall be made at a place mutually agreed upon by the Comptroller and such beneficiary. In the event that any such disability beneficiary shall refuse to submit to a medical examination, the retirement allowance shall be discontinued until the member submits to a medical examination. If such refusal shall continue for one year, all pension rights shall be forfeited. The following indicia of a disability beneficiary's ability to return to the duties of the position from which such individual retired on account of disability, and any other reasonable indicia, shall be considered in determining whether it is appropriate to require the medical examination of a disability beneficiary (who has not requested such medical examination) for the purposes of this Part: