Previously, she was on staff at the Veterans Administration Medical Centers of Washington, DC, and Palo Alto, California, and the Washington Women's Medical Center. Dr. Baker has trained in psychodrama at St. Elizabeth's Hospital in Washington, DC. She is the coeditor of Experimental Therapies for Eating Disorders (1989) with Lynne M. Hornyak. She has served in the governance of the District of Columbia Psychological Association and the Division of Independent Practice of the American Psychological Association (APA; division 42).