Dr. Ellen Stevenson has been involved in clinical care, education and administration at Columbia University Medical Center for over two decades, including running the Psychiatric Emergency Department for over seven years. She currently oversees all clinical activity in Psychiatry at New York Presbyterian Hospital Columbia Campus. One of her most satisfying projects has been developing and running a unique system of mental health care for the N.Y.P.D. and F.B.I. that began shortly after the terrorist attacks and continues to operate. Dr. Stevenson serves on the Admissions Committee for Columbia Medical School as well as a variety of other administrative committees. She maintains a general practice of Psychotherapy and psychopharmacolgy and incorporates a variety of treatment startegies in her approach to patients.