Are you part of a company and/or administrative agency?

Our experts have experience in performing fitness for duty evaluations, evaluating impaired professionals and conducting workplace violence risk assessments.

Common employment fitness for duty

Common employment fitness for duty requests include, but are not limited to, law enforcement, military personnel, civil servants, healthcare workers, aviation employees, legal professionals and state and federal employees.


Meet Our Specialists

Please contact us at 301.327.1835 or by email at forensics@potomacpsychiatry.com to schedule an expert consultation with our experienced professionals.

Dr. Guillermo Portillo

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Guillermo 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.


Dr. Mark A. Novitsky Jr.

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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.

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