Professor Emeritus and Founding Chair of Psychiatry and Neuroscience at the University of California, Riverside School of Medicine; Chair of Research and Development of the World Stuttering Network; Chair of Psychiatry at Doc1 Healthcare; former Chair of the National Stuttering Association and Vice Chair of the International Stuttering Association; Recognized by peers as one of the “Best Doctors in America” annually since 2009; Areas of Expertise and Research: His research on the pharmacologic treatment of stuttering has appeared in numerous scientific journals; Author of book “Without Hesitation: Speaking to the Silence and the Science of Stuttering”, National Stuttering Association, 2009.