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Gregg Dwyer MD, EdD

R. Gregg Dwyer MD, EdD

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  • Associate Professor
  • College of Medicine
  • Psychiatry and Behavioral Sciences
Academic Focus
  • Mental health and operational consulting to law enforcement and other public safety agencies
  • Evaluation, risk management and treatment of paraphilic disorders, interpersonal sexual problem behaviors, and criminal sexual activity
  • Fitness-for-duty evaluations of health care and public service personnel to include law enforcement
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Dr. Gregg Dwyer received a Bachelor of Science in Sociology from the University of the State of New York, Master of Arts in Management from Webster University, Doctor of Education from Virginia Tech, and Doctor of Medicine from the University of Arkansas for Medical Sciences.  After serving in the U.S. Navy, he was commissioned a civilian special agent with the United States Naval Criminal Investigative Service (NCIS) with assignments in field, headquarters, operational, and staff positions.  His experience includes criminal investigations, evidence collection and crime scene processing, special operations, foreign counterintelligence, and critical incident peer counseling.  He was an NCIS special protection & antiterrorism team member and a firearms, defensive tactics and physical fitness instructor.  Dr. Dwyer has held academic appointments in criminal justice programs at Montgomery College in Maryland, Northern Virginia Community College and the University of Arkansas at Little Rock and has been on the faculty of the U.S. Department of Justice National Advocacy Center and National College of District Attorneys.

He is an Associate Professor in the Medical University of South Carolina (MUSC) Department of Psychiatry and Behavioral Sciences, where he is Director of the Community and Public Safety Psychiatry Division, which includes the Forensic Psychiatry Program, Sexual Behaviors Clinic and Lab, Progressive Professionals Program, Public Safety & Emergency Services Program, Community Clinical Services Center, and Education & Training elements at the student, resident and fellowship levels.  Dr. Dwyer is board certified in General, Child & Adolescent, and Forensic Psychiatry and is a certified sex therapist.  He has provided general and case specific consultation to various state government entities including attorney generals, state police, probation, public defenders, mental health, and juvenile justice departments and to private attorneys and mental health clinicians.

As Medical Officer for the South Carolina Law Enforcement Division (SLED) and South Carolina Law Enforcement Assistance Program (SCLEAP), Dr. Dwyer’s role is to provide general medical and mental health clinical consulting; mental health education and training; consulting on research and grants for general health and forensic behavioral health issues of law enforcement officers.  As the SLED/SCLEAP Medical Officer he also provides immediate and follow-up support to law enforcement personnel involved in critical incidents including among others officer-involved shootings, injuries, and line of duty deaths and he is available for on-scene operational and post incident support to the SWAT team, hostage/crisis negotiators, crime scene investigators, arson investigators, investigators working child fatalities and internet crimes against children, and others.  Dr. Dwyer participates in post-critical incident seminars for law enforcement personnel and post deployment seminars for National Guard and other military members.  In addition, Dr. Dwyer is the Medical Officer for a city police department crime scene investigations unit and the Medical Director of an emergency response training center.  He has also served as the Medical Director for a rescue squad and for a fire department providing consultation to each agency’s Chief on general medical, mental health, research, training, and stress management issues and operational duties on fire and rescue scenes.  He has conducted fitness-for-duty evaluations for law enforcement and health care professionals including for state licensing boards. 


Dr. Dwyer assisted in the formation of a federal agency’s peer support team, designed, developed and conducted their first peer team training course, participated in screening and selecting their peer members, and has provided instruction on stress management and mental health to their personnel throughout the U.S.  He consults with criminal justice system professionals working crime scenes and internet crimes against children cases for mental health support and has provided instruction on preventing and managing stress related to the investigation of crime scenes and of crimes against children.  Dr. Dwyer has consulted on the development of a promotion process for a city police department and as a sworn federal criminal investigator was a charter member of a law enforcement peer support team for whom he also co-authored their original briefing and training video on peer support and critical incident stress management. 

Dr. Dwyer has received federal, state and private research grant funding, presented nationally and internationally, and published peer-reviewed articles and book chapters.  His clinical, consulting, research, presentation, and teaching focus areas are operational consulting to public safety agencies including law enforcement; human sexual behaviors including paraphilias/paraphilic disorders and problem and offending behaviors; law enforcement stress prevention, impact, and management.  He is a peer reviewer and on the editorial boards of several journals.  Dr. Dwyer has received awards from multiple national associations, served as president and other officer positions in state and national associations, and been appointed to committees of both national and international professional associations.