Dr. Alan Felix has been Medical Director of RMHA, now Mosaic Mental Health, since 2007. Prior to that, he helped run programs for people who were homeless and suffering from mental illness through affiliations with Columbia University and the Goddard-Riverside Community Center. In the 1990s, he was part of a team that developed the evidence-based Critical Time Intervention to help formerly homeless people remain stable and housed. At present, he is the supervising psychiatrist for an RMHA version of that program. Dr. Felix also served as Medical Director for a program that treated victims of the 9/11 attack on the World Trade Center and served as the NYC Dept. of Health and Mental Hygiene consultant to homeless outreach programs. In recent years, he was the psychiatrist for a novel program that treated young adults after their first psychotic episodes. A graduate of the Columbia University College of Physicians and Surgeons, the Columbia residency program in Psychiatry, and the Columbia Center for Psychoanalytic Training and Research, Dr. Felix has maintained a part-time private practice on the Upper West Side of Manhattan for 30 years.