Matthew J Steiner

Dr. Matthew J Steiner

Expedient Medicolegal Services
16001 Ventura Blvd., Ste. 115
Encino, CA 91436
Office: 888-720-2552

As a board certified psychiatrist and Diplomate of the American Board of Addiction Medicine, Dr. Steiner brings a broad range of experience and interests through his 11+ years of experience providing mental health services including treatment of adolescents, transitional age youth, and adults exhibiting moderate to severe psychiatric diagnoses. He has a broad forensic background and has served as an expert witness in Orange, Los Angeles, and San Luis Obispo counties. Dr. Steiner is currently the Founder, President and CEO of Expedient Medicolegal Services, Inc. along with continuing his own private psychiatric practice. His practice history includes the use of telehealth technologies to provide mental health services to various underserved populations including rural and remote regions in the State of California.

Areas of Expertise
  • Addiction Medicine
  • Behavioral Science
  • Competency
  • Forensic Psychiatry
  • Industrial Psychology
  • Post Traumatic Stress Disorder
  • Psychiatry
  • Psychopharmacology
  • Stress
  • Suicide
  • Testamentary Capacity
  • Undue Influence
  • Vocational Evaluation & Rehabilitation


Available Upon Request