N.Y. Comp. Codes R. & Regs. tit. 10, § 763.6
(b) A plan of care shall be developed within 10 days of admission to the agency and approved by the patient based on the comprehensive interdisciplinary patient assessment. The plan shall designate a professional person employed by the agency to be responsible for coordinating care which includes but is not limited to:
(e) The plan of care shall be reviewed as frequently as required by changing patient conditions but at least every 60 days.