About Main Line Health Founded in 1985, Main Line Health (MLH) is a not-for-profit health system serving portions of Philadelphia and its western suburbs. At its core are four of the region’s respected acute care hospitals—Lankenau Medical Center, Bryn Mawr Hospital, Paoli Hospital and Riddle Hospital—as well as one of the nation’s premier facilities for rehabilitative medicine, Bryn Mawr Rehabilitation Hospital; Mirmont Treatment Center for drug and alcohol recovery; and Main Line Health HomeCare & Hospice, a home health...