Anthony P. Bossis, Ph.D. is a Clinical Assistant Professor of Psychiatry at New York University School of Medicine and a clinical researcher at the NYU Bluestone Center For Clinical Research. He is co-principal investigator, director of Palliative Care Research, and session guide for the New York University Psilocybin Cancer Anxiety Research Project. This research is investigating the impact of a psilocybin-facilitated mystical experience upon existential and psycho-spiritual distress in persons with cancer. He is a supervisor of psychotherapy at Bellevue Hospital - NYU Medical Center and the co-founder and former co-director of the Bellevue Hospital Palliative Care Service. He is a Diplomate of the American Academy of Pain Management and a member of the American Academy of Hospice and Palliative Care. Dr. Bossis is the co-author (with Drs. C. Grob and R. Griffiths) of the chapter, "Use of the Classic Hallucinogen Psilocybin for Treatment of Existential Distress Associated with Cancer" in Psychological Aspects of Cancer (Springer, 2013). Dr. Bossis maintains a private psychotherapy practice in New York City.