Guy Glass attended the University of Pennsylvania School of Medicine and completed his residency in psychiatry at the Institute of Pennsylvania Hospital. For many years he was in private practice in New York, specializing in the treatment of LGBT patients, and serving as Newsletter Editor for the Association of Gay and Lesbian Psychiatrists.  A growing interest in theater led him to write Doctor Anonymous, a play about gay conversion therapy and the events leading up to the removal of homosexuality from the DSM. The play was produced in Los Angeles and published by Heartland Plays, and excerpts appear in Headcase: LGBTQ Writers and Artists on Mental Health and Wellness. 

Guy completed his MFA in theater in 2015 at Stony Brook University. His thesis project involved creating dramatic adaptations of Chekhov’s doctor stories, which have been used at various medical schools. Several of Guy's short plays have also been published in anthologies by Smith & Kraus. He has taught medicine and literature courses at the Center for Medical Humanities, Compassionate Care and Bioethics at Stony Brook School of Medicine, where he is Clinical Assistant Professor, and at Drexel University College of Medicine. He is also a Fellow of the College of Physicians of Philadelphia, where he is on the Steering Committee for the Section on Medicine and the Arts.   

In recent years, Guy has worked as a locum in community mental health centers in Pennsylvania, New York, California, and New Zealand.