Description. Could you be our next Per Diem Acute Rehabilitation Nurse at Bryn Mawr Rehab Hospital in Malvern, PA. Why work as an Acute Rehab Nurse at Bryn Mawr Rehab Hospital. Make an Impact. As a part of our Interdisciplinary Team working within the Oak unit, your care and treatment of these patients is an integral part of their Patient Experience. As a Registered Nurse, you would be caring for a Stroke patient population. Develop and Grow Your...