Psychologist in Town and Country, Missouri Mary Summerville, Psychologist

Mary Summerville, PhD, helps patients in Missouri navigate mental health challenges with empathy and clinical expertise. She provides individualized support for children, adolescents, teens, and adults, assisting them in managing conditions such as anxiety, ADHD, depression, and trauma-related concerns. Her therapeutic approach emphasizes understanding each patient’s unique experiences while fostering resilience, self-awareness, and long-term well-being.

Mary has a particular focus on individuals recently discharged from psychiatric hospitals, those undergoing court-ordered treatment, and patients requiring disability paperwork assistance. She combines her expertise in evidence-based interventions, including Cognitive Behavioral Therapy (CBT), CBT for Insomnia, mindfulness, and parenting skills, to equip patients with practical tools for managing symptoms, improving daily functioning, and promoting emotional balance.

She is especially passionate about supporting children with Autism Spectrum Disorder, addressing childhood behavior issues, and assisting families navigating post-partum depression and trauma. Mary’s work is designed to empower patients and families while fostering safe, affirming, and growth-oriented environments.

Mary’s patient-centered care also extends to populations including LGBTQ+ individuals, adoption/foster care youth, and individuals with developmental disabilities. Her holistic perspective incorporates attention to mental health, behavioral patterns, and life transitions, providing a comprehensive framework for lasting improvement.

Outside of her professional work, Mary enjoys walking and reading, activities that inspire reflection and balance in her life and inform her approach to mental health care.