Dr. Shayan Rab, associate medical director at Los Angeles County Department of Mental Health, explains his revolutionary, if controversial, approach to helping mentally ill homeless individuals. As the county’s first street psychiatrist, he created the Homeless Outreach and Mobile Engagement, or HOME Team, despite resistance from some quarters over concerns about liability and diagnostic protocols. His innovative program combines medical treatment, housing assistance, and human connection. While challenging conventional wisdom, Dr. Rab’s work has become a model for how to approach the intersection of mental health and homelessness.