Authorization, service intensity, staff qualifications, supervision ratios, and plan review cycles are the requirements you will feel weekly.
Services must be authorized, medically necessary, delivered by qualified staff, and documented contemporaneously. Rehabilitation plans require periodic review and signature. Missed reviews are among the fastest ways to create unbillable service and recoupment risk.
Build a personal tickler system for authorization end dates and plan review dates. Do not rely solely on the agency's system; you are the person who loses the hours.