Dr. Steiner is a child, adolescent and adult psychiatrist who maintains a private practice in Palo Alto, CA, providing clinical and forensic consultation and evaluation. He often provides second opinions on cases. 

He is the founder and director of the Pegasus Physician Writers at Stanford, a group of doctors who write creatively. As Professor Emeritus at The Stanford University School of Medicine, Department of Psychiatry, he also teaches Stanford undergraduates, graduate students, and students in the Continuing Studies Program. He maintains an active speaking schedule, traveling both nationally and internationally.