Introduction
My name is Mateusz Dzikowski, Psy.D. I am a licensed clinical psychologist in Illinois, where I have been practicing psychology for nearly 10 years. I participate in PSYPACT and APIT, which allows me to provide secure teletherapy to patients across 40+ U.S. states and territories.

I am the founder of Veritas Psychology PLLC, a practice dedicated to offering therapy that respects both science and Catholic faith. I founded Veritas Psychology PLLC as a way to bring together my clinical expertise, Catholic faith, and commitment to accessible teletherapy. Establishing this practice has allowed me to focus fully on evidence-based therapy while serving patients across multiple states.

Education
Bachelor of Arts – University of St. Thomas, St. Paul, Minnesota.
Master of Science (M.S.) – Institute for the Psychological Sciences, Arlington, Virginia.
Doctor of Psychology (Psy.D.) – Institute for the Psychological Sciences, Arlington, Virginia.
Clinical Experience
I have had the privilege to have worked in a wide-range of professional settings with diverse patient populations. My professional background includes:
- Providing outpatient psychotherapy in group practice environments.
- Assisting with psychological assessments and evaluations.
- Performing evaluations and assessments in intensive outpatient (IOP) and partial hospitalization (PHP) programs.
- Serving on interdisciplinary teams, including crisis prevention and support services.
- Consulting with external providers such as psychiatrists, hospital staff, and inpatient care teams to coordinate treatment and support continuity of care.
Clinical Interests
My primary clinical interest is in the treatment of Obsessive-Compulsive Disorder (OCD). My doctoral dissertation focused on OCD treatment for Catholic patients, particularly those experiencing religious guilt and doubt.
Therapeutic Approach
I provide evidence-based therapy with emphasis on:
- Cognitive Therapy
- Exposure and Response Prevention (ERP)
- Acceptance and Commitment Therapy (ACT)
Therapy integrates Catholic values when appropriate. Faith is respected and supported, while treatment focuses on reducing compulsions and promoting a healthy practice of the faith.
