• forensic-psychiatry-expert-witness-evaluation-and-testimony

    Never become so much of an expert that you stop gaining expertise. View life as a continuous learning experience.

    - Denis Waitley

  • Forensic Psychiatry & Expert Witness Evaluation and Testimony

    Forensic psychiatry is a subspecialty of psychiatry that includes the areas in which psychiatry is applied to legal issues, risk assessment and other facets of government such as professional licensing agencies. In the legal realm, forensic psychiatry has a role in both civil and criminal litigation.

    Potomac Psychiatry offers expert consultation in forensic psychiatry through the experience and expertise of Drs. Guillermo Portillo and Mark Novitsky.

    We provide consultation for both plaintiff and defense attorneys. Consultation includes, but is not limited to, case and record review, independent medical evaluations, forensic psychiatric reports, depositions and courtroom testimony.

    Please contact us at 301.984.9791 or by email at Forensics@potomacpsychiatry.com to schedule an expert consultation with our experienced professionals.

    Dr. Guillermo Portillo

    Dr. Guillermo PortilloGuillermo Portillo, M.D. is a board certified forensic psychiatrist with experience in civil and criminal cases, cases related to employment issues such as fitness for duty evaluations as well as expertise in evaluating impaired professionals. As a forensic psychiatrist, Dr. Portillo is an expert in the area at the interface of psychiatry and the law. He also provides consultations for diagnostic clarification and assessment of psychopharmacologic and therapeutic interventions for appropriateness.

    Dr. Portillo currently has an academic appointment as an adjunct clinical faculty member at Temple University Hospital’s Department of Psychiatry and Behavioral Science where he has lectured on forensic and emergency psychiatry. Additionally, Dr. Portillo is able to provide services and consultation in both English and Spanish.

    View complete curriculum vitae for Guillermo Portillo, M.D.

    Areas of expertise include but are not limited to:

    Personal Injury

    • Malpractice and standards of care for mental health professionals
    • Emotional injury/damages
    • Recommendation of treatment needs and prognosis


    • Mental health disability claims
    • Americans with Disabilities Act (ADA)

    Family Law

    • Evaluations of adults in matters of parental rights

    Employment Litigation

    • Fitness for duty
    • Workers compensation claims
    • Equal Employment Opportunity Commission claims (EEOC)
    • Impaired professionals
    • Racial, sexual, gender, or religious discrimination and/or harassment
    • Workplace violence risk assessment

    Civil Capacity

    • Testamentary Capacity
    • Guardianship

    Dr. Mark A. Novitsky Jr.

    Dr. Mark A. Novitsky Jr.

    Mark A. Novitsky Jr., MD is a Dual Board Certified Child and Adolescent/Adult Psychiatrist with experience in clinical and forensic practice. Dr. Novitsky uses a variety of psychotherapy techniques, as well as medication management when necessary, in the treatment of children and adolescents. He highly values an ongoing collaborative relationship with parents. His psychotherapy techniques include cognitive behavioral therapy (CBT), play therapy, and parent management training.  Following his training in child psychiatry, he sought out formal Cognitive Therapy training with children and adolescents through “The Beck Initiative”, sponsored by The Aaron T. Beck Center at the University of Pennsylvania, where Dr. Aaron Beck first created CBT.

    Dr. Novitsky has served for several years as corporate medical director for Philadelphia’s fastest growing non-profit by serving children experiencing emotional, behavioral, and academic challenges. His extensive clinical experience includes, but is not limited to:


    • Childhood trauma/Post-traumatic stress disorder (PTSD)
    • Attention Deficit Hyperactivity Disorder (ADHD)
    • Depressive disorders, Bipolar disorder and other mood disorders
    • Anxiety Disorders and Obsessive Compulsive Disorder (OCD)
    • Oppositional Defiant Disorder and Conduct Disorder
    • Autism Spectrum Disorder
    • Learning Disorders
    • Substance Use Disorders
    • Intellectual Disability

    Dr. Novitsky is an adjunct clinical faculty member at Temple University Hospital’s Department of Psychiatry and Behavioral Science and is the clinical preceptor for 2nd year residents Child and Adolescent rotation. He educates psychiatry residents and 4th year medical students about the intricacies of the mental health world and how it interfaces with other inter-agency supports that comprise a court-involved youth’s comprehensive treatment. He has been the recipient of a grant for his research, has been published in peer-reviewed journals, and has presented at national conferences.

    View complete curriculum vitae for Mark A. Novitsky Jr., MD

    Child and Adolescent Forensic Services include, but are not limited to:

    • Diagnosis and Prognosis
    • Causation
    • Child and Parental Assessments in Custody and Divorce Cases
    • Competency
    • Treatment Recommendations
    • Pharmaceutical Claims



    Our offices are conveniently accessible from the following communities:

    Maryland (MD):
    Bethesda 20814 - Bethesda 20816 - Bethesda 20817 - Chevy Chase 20815 - Colesville 20904 - Cabin John 20815 - Glen Echo 20812 - Gaithersburg 20855 - Gaithersburg 20877- Gaithersburg 20878 - Gaithersburg 20879 - Garrett Park 20896 - Kensington 20895 - Montgomery Village 20886 - Olney 20830 - Olney 20832 - Potomac 20854 - Potomac 20859 - Rockville 20850 - Rockville 20852 - Rockville 20853 - Silver Spring 20903 - Silver Spring 20905 - Silver Spring 20906 - Silver Spring 20910 - Takoma Park 20912 - Wheaton 20902

    Washington DC:
    Crestwood 20011- North Capitol Hill 20002 - Cathedral Heights 20016 - American University Park 20016 - Columbia Heights 20010 - Mount Pleasant 20010 - Downtown 20036 - Dupont Circle 20009 - Logan Circle 20005- Adams Morgan 20009 - Chevy Chase 20015 - Georgetown 20007 - Cleveland Park 20008 - Foggy Bottom 20037 - Rock Creek Park - Woodley Park 20008 - Tenleytown 20016

    Northern Virginia:
    McLean 22101- McLean 22102 - McLean 22106 - Great Falls 22066 - Arlington 22201 - Arlington 22202 - Arlington 22203 - Arlington 22205 - Falls Church 22041 - Vienna 22181 - Alexandria 22314