Overview. Critical Illness Recovery Hospital. . Physical Therapist Assistant (PTA). . PRN/Per Diem/As Needed. . . . At Select Specialty/Regency Hospitals, a division of Select Medical, we care for chronically and critically ill or post-ICU patients who require extended hospital care. Select Medical employs over 48,000 people across the country and provides quality care to approximately 70,000 patients each and every day across our four divisions....