child, adolescent and young adult psychologist in Newport Beach and Irvine Calfiornia

Dr. Aaron Montgomery, MFT, Psy.D.

Licensed Psychologist

Licensed Marriage & Family Therapist

Dr. Montgomery has provided a variety of mental health services to children, adolescents and parents for over 10 years. He is experienced in the application of evidence based treatments including Parent-Child Interaction Therapy (PCIT; a treatment for disruptive behavior in children) and Trauma Focused Cognitive Behavioral Therapy (TF-CBT; a protocol for treating trauma in children). In addition to his clinical work, Dr. Montgomery has experience supervising graduate level interns, has conducted and presented original research to mental health professionals and has served as a Subject Matter Expert (SME) for the California Board of Behavioral Sciences Licensed Marriage and Family Therapist (LMFT) Written Clinical Examination development process and the California Board of Psychology California Law and Ethics Exam (CPLEE) development process. In his free time, Dr. Montgomery enjoys photography, film, music, developing new culinary skills, and spending time with his family.


  • Psychological Assessment & Testing for ADHD, Depression, Anxiety, IQ & Learning Disabilities.

  • Child & Adolescent Psychotherapy

  • Parent Training & Support

  • Cognitive Behavioral Therapy

  • Psychodynamic Psychotherapy


Doctor of Psychology, Clinical Psychology

  • American School of Professional Psychology at Argosy University, Orange County, CA. Full Accreditation by the American Psychological Association (APA)

  • Dissertation: Montgomery, A. R., (2014) Does a Strong Therapeutic Alliance in Parent-Child Interaction Therapy Predict Attendance, Reduction in Parental Distress and Improvement in Child Behavioral Outcomes? (Unpublished Doctoral Dissertation). American School of Professional Psychology, Argosy University, Orange County, CA.

Master of Arts, Clinical Psychology

  • American School of Professional Psychology at Argosy University, Orange County, CA

Master of Science, Counseling Psychology

  • California Baptist University, Riverside, CA. Family Systems Emphasis.

Bachelor of Arts, Psychology

  • La Sierra University, Riverside, CA


  • Licensed Psychologist

    • (Lic. PSY28475). California Board of Psychology.

  • Licensed Marriage & Family Therapist

    • (Lic. MFT49608). California Board of Behavioral Sciences.


  • Member of the American Psychological Association

  • Member of the Academy of Cognitive Therapy


  • Montgomery, A. (2015, September), Is the therapeutic alliance important in Parent-Child Interaction Therapy? Workshop presented at the 15th Annual Conference on Parent-Child Interaction Therapy for Traumatized Children at The University of California Los Angeles, Los Angeles, CA.

Interested in scheduling an appointment with Dr. Montgomery?

Appointments can be scheduled online or over the phone with our receptionist.

(949) 793-0122