Are you an attorney looking for an independent medical examiner or accurate diagnosis for a child case?

Our expert witness performs a comprehensive psychiatric evaluation, a review of family history, laboratory tests, and past treatment interventions. We may recommend measures to further investigate contributing factors, including but not limited to, laboratory tests, genetic testing, psychological testing and/or food allergy testing. This information will help clarify diagnosis and amenability to treatment.

Areas of expertise include but are not limited to:

Diagnostic clarification


Mood Disorders


Anxiety Disorders


Post-Traumatic Stress Disorder


Psychotic Disorders


Attention Deficit Hyperactivity Disorder (ADHD)


Determining Appropriateness to Return to School


Evaluation of Sexual Abuse/Harassment Claims

Our experts will evaluate a child who has allegations of physical, emotional, or sexual abuse and neglect.

Meet Our Specialists

Please contact us at (301) 984-9791 or by email at 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.