Professor Gregory I. Mack’s Profile Faculty Toggle navigation

Dr. is an Adjunct Assistant Professor of Psychology at New York City College of Technology, and an Assistant Professor of Psychiatry & Behavioral Sciences at New York Medical College. He is an ad hoc reviewer for Psychology, Public Policy, & Law, and a past editorial board member of “Behavioral Sciences of Terrorism and Political Aggression,” the official journal of the Society for Terrorism Research. His research interests include police stress/suicide; suicide by cop; traumatic stress issues/ PTSD; false confessions; noble cause corruption; police decision-making/high velocity human factors; disability evaluations; police & minority community relations; forensic decision-making, dangerousness, and terrorism.

Professor Mack is a New York State licensed forensic and clinical psychologist and serves as a Consultant Forensic Psychologist with New York City Transit.

He earned a Bachelor of Arts and a Master of Arts degree in forensic psychology at John Jay College of Criminal Justice in 1987 and 1989, respectively. He obtained a Master of Arts and a Doctor of Philosophy degree in clinical psychology at St. Johns University in 1998. Prof. Mack completed his pre-doctoral Internship training at New York University Medical Center-Bellevue Hospital. He participated in specialized training in forensic psychology during his internship at the Kirby Forensic Psychiatric Hospital Center (KFPC), a 200-bed maximum security forensic hospital and performed dangerousness assessments and competency to stand trial evaluations.

Prof. Mack is a retired “20-year veteran” NYPD Detective Specialist 3rd Grade & Police Psychologist and conducted fitness-for-duty evaluations, disability evaluations, pre-employment psychological evaluations, and critical incident stress debriefing and counseling services to police officers who were involved in life threatening incidents. He was employed with the U.S. Department of Veterans Affairs in Westchester, NY, as a staff psychologist. In this capacity he provided treatment in a residential program for veterans suffering from Posttraumatic Stress Disorder and comorbid disorders; he served as the Program Manager for the Montrose VA’s 32-day, 42 bed, Substance Abuse Residential Treatment Program (SARTP); he performed Occupational Health pre-employment and fitness-for-duty psychological evaluations of VA Police Officers; and he conducted forensic Compensation & Pension examinations for the Veterans Benefits Administration as well as administrative investigations as directed by the Department of Veteran’s Affairs Quality Management Service.

Dr. Mack is New York State O.A.S.A.S certified to provide screenings and assessments of individuals charged with or convicted of impaired driving offenses; he is authorized to provide treatment and Independent Medical Examinations (IME) with the New York State Workers’ Compensation Board; he has extensive experience in treating posttraumatic stress disorder and major depressive disorder utilizing evidenced based approaches (e.g., Cognitive Behavioral Therapy, Cognitive Processing Therapy); and he has experience providing neuropsychological assessments and mandatory psychological assessments of patients seeking Bariatric surgery.

Dr. Mack is an Adjunct Assistant Professor of Psychology at New York City College of Technology, and an Assistant Professor of Psychiatry & Behavioral Sciences at New York Medical College. He is an ad hoc reviewer for Psychology, Public Policy, & Law, and a past editorial board member of “Behavioral Sciences of Terrorism and Political Aggression,” the official journal of the Society for Terrorism Research.

Lastly, Professor Mack is a member of several professional organizations including: the American Psychological Association’s American Psychology-Law Society (Division 41), and Trauma Psychology (Division 56); the American Academy of Forensic Sciences; the Police Psychological Services Section of the International Association of Chiefs of Police; the Society for Police and Criminal Psychology; and the Detectives Endowment Association.