Shannon Mullen, Ph.D., CSAT-S, is a Certified Sexual Addiction Therapist and Supervisor by the International Institute for Trauma and Addiction Professionals. She has more than 20 years of experience in assessment and treatment and is considered an expert in sexual behavior and trauma recovery. Dr. Mullen is EMDR trained and an IFS therapist (level II). She regularly teaches and supervises other professionals in this work.  Additionally, Dr. Mullen is a regular consultant for religious organizations and houses of formation within the Catholic Church in the assessment and treatment of addiction and trauma-related disorders. Dr. Mullen is the former Chair of the CPA Ethics Committee and lead author of the CPA Ethics Code (2023).  She currently serves as the President of the Board of Directors of the Catholic Psychotherapy Association.