Muchiri Karega is a practicing Marital and Family Therapist who holds a Doctor of Philosophy in Psychology from Kenyatta University, Kenya, a Master of Arts in Marital and Family Therapy from Alliant International University, USA, and a Bachelor of Arts in Psychology from United States International University-Africa, Kenya. He has training in Grief Care from San Diego Hospice and Palliative Care, USA, and has specialized training in Addiction Treatment from Colombo Plan International.

His most recent academic position was as Assistant Professor of Marriage and Family Therapy at the United States International University-Africa, Kenya. Prior to that, he was a Psychology Lecturer at the Kenyatta University Department of Psychology, where he was also Head of Department. His teaching interests included Family Therapy, Group Therapy, Loss and Grief Counselling, Counselling Practicum and Supervision, and Addiction Treatment. He has been instrumental in curriculum review for the various degree programs offered in the Department of Psychology at Kenyatta University.

Dr. Muchiri has authored and co-authored papers in peer-reviewed journals on various topics related to systemic dynamics including fistula care and the family system, considerations of family dynamics in substance use disorder treatment, attachment style and risk for substance use disorders, internet addiction, and problem gambling. He has presented papers at scientific conferences on systemic considerations for treatment of fistula, family as the unseen patient in end-of-life care, alcohol use and performance of gender roles, and gender role socialization and its impact on rural communities. He has an interest in the influence of childhood trauma on the psycho-social well-being of individuals and how they relate to others.