Peggy McMahon, PhD – Psychologist

Plano, TX – Prominently featured in The Inner Circle, Peggy McMahon, PhD is acknowledged as a Life Achiever 2024-2025 for her contributions to Mental Health Solutions with Specialized Clinical Psychology.

Dr. Peggy McMahon, PhD, emerges as a trailblazer in the field of psychology, specializing in clinical psychology with a focus on anxiety and depressive disorders, particularly Obsessive-compulsive Disorder (OCD).

Armed with a Bachelor’s degree from the University of Texas Arlington and a Doctor of Philosophy from the University of Texas Southwestern Medical Center at Dallas, Dr. McMahon brings a wealth of academic knowledge and practical expertise to her practice. Her dedication to advancing mental health care is further evident through her fellowship at Texas Scottish Rite Hospital for Children.

As an esteemed member of the American Psychological Association (APA) and the International OCD Foundation, Dr. McMahon remains at the forefront of cutting-edge research and treatment modalities. She is deeply committed to giving back to her community, volunteering at Austin St. Shelter to support those in need.

With specialized training in treating obsessive-compulsive disorder from the Behavior Therapy Institute of the International OCD Foundation, Dr. McMahon has developed highly effective therapies for a range of complex psychological issues. Her therapeutic approach, characterized by professionalism, accessibility, and profound clinical knowledge, has garnered acclaim from clients of all ages.

Dr. McMahon’s contributions extend beyond her clinical practice. She is an author of several journal articles, contributing to the body of knowledge in psychology and mental health.

In her personal life, Dr. McMahon finds joy in spending time with her grandson Sam, cherishing the support of her loving family.

Reflecting on her philosophy, Dr. McMahon believes in the power of specialization over generalization, striving to provide the highest quality of care tailored to each individual’s unique needs.

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