During the past 38 years, Dr. Youdin practiced psychotherapy in New York City for 15 years, and currently in Princeton, New Jersey. Dr. Youdin has an existential and mindfulness-based cognitive orientation and is trained in Eriksonian hypnosis. He was a Visiting Research Collaborator in the Department of Molecular Biology at Princeton University, where Dr.Youdin wrote two textbooks on substance abuse and psychotherapeutic treatment of substance abuse. He appeared on numerous public service radio programs discussing psychotropic substance abuse problems, the many types of eating disorders, and developing a positive journey when coping with cancer.
Dr. Youdin is the author of several textbooks on psychotherapy and gerontology. For twenty years, he was an Adjunct Associate Professor at the Fordham University Graduate School of Social Service in New York City. In 2007-2008, Dr. Youdin was a Project Director for a Gero Innovations Grant for the Master's Advanced Curriculum Project funded by the John A. Hartford Foundation and Council on Social Work Education. In 2005-2007 he was a participant in the Curriculum Development Institute (Gero-Ed) sponsored by John A. Hartford Foundation and Council on Social Work Education. Dr. Youdin was a past assistant research scientist of the Biometrics Unit of the New York State Psychiatric Institute in New York City. In 1977, he was elected as member of Sigma Xi, The Scientific Research Society of North America - SUNY-Downstate Medical Center Chapter.