Dr. Earth Hasassri is an Assistant Clinical Professor – Volunteer at the University of California San Francisco in the Department of Psychiatry and Behavioral Sciences. He is a board-certified psychiatrist through the American Board of Psychiatry and Neurology. In addition, Dr. Hasassri is currently a Clinical Fellow of Child & Adolescent Psychiatry within the Department of Psychiatry and Behavioral Sciences at Stanford University School of Medicine and Lucile Packard Children's Hospital at Stanford. He specializes in seeing patients for complex psychiatric conditions such as psychotic experiences and autism spectrum disorders. His interests are caring for individuals who suffer from medical conditions at the interface of medicine and psychiatry. He treats children, adolescent, and adults with a broad range of psychiatric disorders including neurodevelopmental disorders, ADHD and mood and anxiety disorders.

Prior to medical school, Dr. Hasassri graduated with dual bachelor's degrees in neurophysiology and psychology at the University of California San Diego, where he performed research on sleep medicine. He earned his medical degree from the Mayo Clinic Alix School of Medicine where he did research in clinical epidemiology. Dr. Hasassri completed his residency in general psychiatry at the University of California San Francisco Langley Porter Psychiatric Hospitals & Clinics, during which he was awarded an Area of Distinction in Clinical Neuroscience for his work in applying neuroscientific principles in his clinical work in those with brain cancer, dementia, neurodevelopmental disorders, and other neuropsychiatric conditions.