The staff is incredible. They all helped me so much.

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Meet the Treatment Team

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Richard J. Loewenstein, MD, Medical Director

Dr. Richard J. Loewenstein is a Senior Psychiatrist and the founder and Medical Director of The Trauma Disorders Program, comprised of a 22-bed coed inpatient unit, an outpatient program, a postdoctoral fellowship program, and research, consultation and teaching components. Dr. Loewenstein lectures frequently on dissociation and trauma to regional, national, and international groups. He is the author of many papers and book chapters on sleep disorders, consultation-liaison psychiatry, dissociation, dissociative disorders, and trauma disorders. He has received numerous awards for his contributions to clinical studies of trauma and dissociation. Dr. Loewenstein is Clinical Professor in the Department of Psychiatry at the University of Maryland School Of Medicine, Baltimore, MD.

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Susan B. Wait, MD, Service Chief

Dr. Susan Wait is one of the founding clinicians of the Trauma Disorders Unit at Sheppard Pratt, and has been the Service Chief of this unit since 1993. She has extensive experience and expertise in both psychotherapeutic and psychopharmacologic treatment of patients with Dissociative Disorders, PTSD, Complex PTSD, and Anxiety Disorders. She has also been trained in Dialectical Behavior Therapy (DBT) and is interested in broadening the use of this modality in patients with trauma-related disorders. Dr. Wait provides leadership for the integration of DBT into individual, group, and milieu treatment on the Trauma Disorders Inpatient Unit. Dr. Wait is the co-author with Dr. Loewenstein of the chapter, “The Trauma Disorders Unit,” in Sharfstein, Dickerson, and Oldham’s 2008 Textbook of Hospital Psychiatry.

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Sharon Moore, MD, Staff Psychiatrist

Dr. Sharon Moore graduated from Howard University College of Medicine in 1993 and completed a residency in Adult Psychiatry at Montefiore Medical Center/Albert Einstein College of Medicine in 1997, where she was involved in treatment and research on Dissociative Disorders. In 1998, she completed a forensic psychiatry fellowship in the Albert Einstein College of Medicine/Bronx Psychiatric Center Division of Psychiatry and the law. Before joining the staff of the Sheppard Pratt TDU, Dr. Moore worked in a variety of settings including community mental health, forensics, and outpatient mental health for veterans. Dr Moore is Board Certified in Psychiatry.

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Heather Billings, RN, Nurse Manager

Heather Billings is Manager of the inpatient unit. She directly supervises the nursing, social work, art therapy, and occupational therapy staffs. Ms. Billings has been with the TDU since 2001, providing psychiatric nursing care and milieu treatment. She is responsible for the day to day operation of the unit, including safety, staffing, and management of the therapeutic milieu. She attends many treatment team meetings and coordinates staffing and clinical issues in the therapeutic milieu. Ms. Billings regularly attends the daily goals group which begins the treatment day for all patients. She is extensively involved in staff training and support to help maintain the safety of the unit and to assure that staff are skilled in management of patients’ trauma symptoms. Ms Billings has also been trained in Dialectical Behavioral Therapy (DBT).

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Kathryn Gatzke, LCSW-C, Therapist

Kathryn Gatzke has been a Clinical Social Worker at Sheppard Pratt Hospital since 1984, providing individual, group and family therapy. She has extensive experience and training in the treatment of trauma disorders, providing individual psychotherapy to inpatients and outpatients since the inception of The Trauma Disorders Program in 1992. She has lectured on various topics related to trauma disorders, and also provides clinical supervision to social workers at the LGSW level.

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Christine Walters Fritze, PMHCNS-BC, Therapist

Christine Walters Fritze is Clinical Nurse Specialist, and has worked as a psychiatric nurse for over twenty years. She has had various roles in the trauma disorders continuum of services since the program’s inception, including a period as director of the Trauma Disorders Day Hospital. She provides individual therapy and leads cognitive therapy groups on the inpatient unit. As an adjunct clinical faculty member at the Community Colleges of Baltimore County, Chris also teaches psychiatric nursing. Her treatment philosophy is centered around symptom management education, resilience, cognitive restructuring, and expression, including creative expression for traumatized patients.

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Mara Katz, LCSW-C, Therapist

Mara Katz earned her Master of Social Work degree at University of Maryland. Ms Katz has been with the inpatient Trauma Disorders Program at Sheppard Pratt since 2006, as a Social Worker until 2010, and currently as a Therapist. She has experience working with complex issues such as domestic violence, HIV/AIDS, and childhood trauma. Areas of interest include Dialectical Behavior Therapy techniques, family therapy, family psycho-education, and group psychotherapy. Mara provides inpatient individual therapy and outpatient individual and family therapy and provides clinical supervision to social workers at the LGSW level.

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Amanda Agarwal, LCSW-C, Social Worker

Amanda Agarwal earned her Master of Social Work degree at University of Maryland. Ms Agarwal has been an employee at Sheppard Pratt Hospital since 1999. She began as a Mental Health Worker on the trauma unit, and has worked in the Consolidated Day Hospital Program and the Department of Admissions. Ms Agarwal has also worked in the Baltimore City Public School System and Baltimore’s Department of Veterans Affairs Hospital, in the surgical ICU, surgical unit and facilitating trauma group psychotherapy with Vietnam veterans. She has been a social worker on the Trauma Disorder Unit since 2008. She graduated from Towson University with a Bachelor’s Degree in Psychology.

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Tammy Cyzyk, LCSW-C, Social Worker

Tammy Cyzyk earned her Master of Social Work degree at the University of Maryland. She has worked on the Trauma Disorders Unit since 2008. Before coming to Sheppard Pratt Hospital, she worked at a domestic violence/sexual assault center in Baltimore City, providing psychotherapy to both female and male survivors. In addition, at a local Detention Center, she co-facilitated a group for women inmates who had experienced domestic violence. She has also worked with children and adolescents, providing individual and family therapy. She graduated from UMBC with a Bachelor’s Degree in Social Work and a minor in Women’s Studies.

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Beth Ashton, LGSW, Social Worker

Beth Ashton earned her Master of Social Work degree at University of Maryland, with a specialization in Mental Health. In addition to working on the Trauma Disorder Unit, Ms. Ashton provides individual and family therapy for children and adults at an outpatient mental health center. Ms. Ashton has previously worked in Treatment Foster Care for children and adolescents with developmental disabilities. During graduate school, she interned as a Social Worker on the children’s inpatient psychiatric unit of Sheppard Pratt. She also interned as a Social Worker in the Oncology Department of Mercy Medical Center, providing clinical case management and facilitating group therapy sessions. She graduated from Maryland Institute College of Art with a Bachelor’s of Fine Arts.

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Patricia Prugh, ATR-BC, CGP, Senior Art Therapist

Patricia Prugh is an internationally known expert on art therapy with patients with Dissociative Disorders and Complex PTSD. Ms. Prugh has specialized in trauma recovery art therapy programming at Sheppard Pratt Hospital since 1993. She has also worked with the homeless population in Baltimore, many of whom have been severely traumatized. Ms. Prugh provides presentations nationally and internationally and is the recipient of numerous grants and awards for her clinical and artistic work. She believes that the inherent healing aspects of the creative arts process based in psychodynamic principles, and the program’s treatment model, form the core of the art therapy programming on the Trauma Disorders Unit.

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J. Ken Walters, Pharm.D., Pharmacy Director

Dr. Walters is Director of Department of Pharmacy Services of Sheppard Pratt Health System and Clinical Assistant Professor for the University of Maryland School of Pharmacy. In these roles he guides the department in the delivery of Pharmaceutical Care Services at Sheppard Pratt’s Towson and Ellicott City sites. Dr. Walters maintains an active clinical practice in the TDU as the program’s psychopharmacologist, and also runs a medication education group. Dr. Walters has served as a reviewer for The Annals of Pharmacotherapy for over 10 years and has also published numerous scientific articles in professional publications. Additionally, he precepts doctoral students in the University of Maryland’s Doctor of Pharmacy Program. Dr. Walters brings a breadth of knowledge and experience in psychopharmacotherapy and is an integral member of the program’s treatment team. His broad experience and knowledge is essential for assistance with the often complex medical and psychopharmacological problems of TDU patients.

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Diane Adlestein, Ph.D, Director of Post Doctoral Training

Dr. Adlestein is Director of Postdoctoral Training, Trauma Disorders Program. She has extensive training in the treatment of severe trauma and dissociation. She has been on staff in The Trauma Disorders Program since 1995. She has functioned in numerous capacities in the program, including Attending Psychologist on the inpatient TDU from 1996 to 1999. Currently she is an outpatient Staff Psychologist for The Trauma Disorders Program, as well as consultant, supervisor, and the Director of Postdoctoral Training. She has particular interests in psychodynamic psychotherapy, group psychotherapy for trauma patients, and professional training of clinicians in the area of trauma. She has given presentations at regional, national, and international meetings including symposia on long term outpatient group psychotherapy for Dissociative Disorders and Complex PTSD patients.

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Joyanna Silberg, Ph.D, Senior Consultant for Child and Adolescent Trauma

Dr. Silberg is the Senior Consultant for Child and Adolescent Trauma at Sheppard Pratt Health System. Dr. Silberg is internationally known as a pioneering expert in the study of dissociative disorders and complex trauma in children and adolescents. She has edited and authored many works on these topics, including her classic book, The Dissociative Child. Her new book, The Child Survivor: Healing Developmental Trauma and Dissociation was released in 2012. Her private psychotherapy practice specializes in children and adolescents suffering from posttraumatic and dissociative symptoms and disorders. Her private forensic practice specializes in child sexual abuse. She is Executive Vice President of the Leadership Council on Child Abuse and Interpersonal Violence. More information about Dr. Silberg’s expertise is available at

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2013-2014 Postdoctoral Fellows

Left to right: Chislon Thomas, M.A. Postdoctoral Fellow I; Hugo Schielke, Ph.D., M.S.M.F.T, Postdoctoral Fellow II; Kelly Araujo, Psy.D, Postdoctoral Fellow I; Chalenna Cassell, M.A., Postdoctoral Fellow I