court house

Community and public safety psychiatry

CPSPD Team and Specialties

Faculty in the Community and Public Safety Psychiatry Division include professionals from multiple disciplines including physicians, psychologists (clinical, neurocognitive and forensic), social workers, professional counselors, a plethysmography lab technician and a polygraph examiner.  There are also several administrative positions including the CPSPD Administrative Coordinator, Forensic Psychiatry Fellowship Coordinator, administrative assistants and reception desk staff.


R. Gregg Dwyer, M.D., Ed.D.

Dr. Dwyer’s clinical, consulting, education/training, and research specialty areas include: mental health and operational consulting to law enforcement, rescue, and other public safety agencies; human sexual behavior evaluation, risk management and treatment including for paraphilias, interpersonal relationship sexual problem behaviors, sexual dysfunction and criminal actions; law enforcement and other public safety agency stress prevention and management; health care and public service personnel, to include law enforcement, fitness-for-duty evaluations.

Christopher S. Fields, M.D.

Competency to stand trial, criminal responsibility, mitigation, disability and Independent Medical Examinations. Expertise in child and family issues including custody, visitation, parental fitness, termination of parental rights, abuse/neglect, juvenile competency to stand trial, juvenile waivers to adult court and treatment of juvenile offenders.

Christine Hamolia, MS, RN, CS

Christine Hamolia is an Advanced Practice Nurse with prescriptive authority who specializes in the treatment of adults with mental health problems. She received her bachelors and Masters degree from Boston College. She has been a nurse for over 30 years and has worked here at the Medical University in the Department of Psychiatry and Behavioral Sciences for over 25 years. She provides initial evaluations, individual and family therapy as well as medication management for patients with mental health problems such as depression, anxiety and mood disorders. In addition, she specializes in the treatment of eating disorders including anorexia, bulimia and binge eating disorder. She utilizes a cognitive behavioral therapy model as well as motivational techniques and dialectical behavior therapy in her treatment.

Kirk Meekins, M.D.

Dr. Meekins is an Assistant Professor in the Department of Psychiatry and Behavioral Sciences at the Medical University of South Carolina. He earned his BS degree from Duke University where he majored in Biology and Environmental Sciences and Policy. He earned his MD at Tulane University in New Orleans, LA before completing his General Psychiatry residency training at the University of Virginia. Dr. Meekins then completed fellowship training in Child and Adolescent Psychiatry at MUSC where he joined the faculty in 2009. Dr. Meekins serves as the Medical Director for the MUSC Community Psychiatry Clinic where he has an outpatient practice serving children, adolescents, and adults. In addition, he is an attending psychiatrist at the MUSC STAR program, a day treatment program for children and adolescents with severe behavioral and emotional disturbances. Dr. Meekins is also involved in clinical and didactic education for child and adolescent psychiatry fellows.

Diana M. Mullis, M.D.

Dr. Mullis provides criminal and civil evaluations for the defense and plaintiff, including legal competency to stand trial, criminal responsibility, and diminished capacity. Evaluations for mitigation, violence risk assessments, fitness for duty, Independent Medical Evaluations, standard of care and malpractice case analysis, emotional harm and disability, and correctional medical care.

Mayson Stewart, MA

Mayson Stewart holds a BA from Clemson University and a MA from Webster University. His background consists of over 35 years in counseling services. He has two years of post-graduate training in Bowen Family Systems Theory. Mr. Stewart is a Licensed Professional Counselor who works with children, adults, and families.

Debra Wallace, MSW

Debra Wallace is a Clinical Counselor in the Department of Psychiatry and Behavioral Sciences at the Medical University of South Carolina. She graduated cum laude with a BS degree in Psychology from the College of Charleston and an MSW degree from the University of South Carolina. Ms. Wallace has worked in outpatient and inpatient settings providing individual, family, group, and multi-family group treatment. She works primarily with middle-age adults and is certified in trauma recovery. Other interests include anxiety, mood disorders, and grief and loss.

Pat Yost, MSW

Pat Yost received a Bachelor’s degree in Psychology and a Master’s degree in Social Work from the University of South Carolina. Pat has been a working clinician since 1995 and at the Institute of Psychiatry since 2007. She has a broad range of areas she works in to include teenage issues, trauma, domestic violence, grief and loss and depression/anxiety issues. Pat works with children (ages 10 and above) through adults. Pat uses a cognitive behavioral approach and works with individuals, families and groups.

Lab Technician
Joe Secondary

Joe Secondary graduated from Laboure College in Boston, MA with a Degree In Clinical Neurophysiology. He trained in EEG, SLEEP, EP, EMG, IOM and LTM epilepsy diagnostic studies. He has worked in clinical and research sleep and neurophysiology since 1993. Registered Polysomnographic Technologist and has managed sleep centers for over 10 years. Specialized in sleep lab development. Experience in community and corporate education for sleep disorders and sleep wellness. He has worked at MUSC since June 2010.

Social Workers
Mary Lou Shoemaker
Mollie Dadin

Research Assistants
Anna Culpepper
Katie Whitehouse

Alison Knight, MBA

Ms. Knight received her Bachelor’s degree in Business Administration from the University of South Carolina and her Master’s in Business Hospital Administration from Strayer University.  She has been working as the Division Manager and Forensic Fellowship Coordinator since 2011.

To reach a member of the CPSPD Team, call 843-792-1461.

Or email


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