Brian Quinn LCSW, PHD Brian Quinn, LCSW, Ph.D., author of Wiley Concise Guides to Mental Health: Bipolar Disorder and The Depression Sourcebook, 2nd ed., is a clinical social worker in private practice in Huntington, New York. He earned his master's degree in social work at the University of Chicago and his Ph.D. in clinical social work at New York University. Dr. Quinn has a post-graduate certificate in psychoanalytic psychotherapy from Beth Israel Medical Center in New York City.