

In Southlake, Headway offers flexible trauma-focused therapy addressing flashbacks, emotional numbness, and hypervigilance. Our network of 8,179 providers specializes in CPT, PE, and other trauma-informed modalities, with many offering free consultations and availability within two weeks.
As a board-certified, doctorally prepared psychiatric nurse practitioner, I treat a variety of mental health disorders using medication management as well as can incorporate psychotherapy within the session based on situational necessity. My focus is across the lifespan, including children and adolescents.
My therapeutic style remains flexible and collaborative, focusing on your individual strengths, needs, and motivation. I consider it a privilege to partner with my clients in this work and to be trusted by them as they share their stories. I strive to create a collaborative space for you to share and examine your own behaviors, feelings, and thoughts; for as Cheryl Richardson has noted, “People start to heal the moment the feel heard.”
I work with adults 18 and older who feel anxious, depressed, distracted, emotionally overwhelmed, burned out, or unlike themselves. They may be struggling with ADHD, mood changes, stress, sleep disruption, low motivation, or difficulty functioning in daily life. Many are looking for mental health care that feels thoughtful, thorough, and individualized.
I am Mary Nganga, a PMHNP-BC in state of Texas. I have more than 12 years of experience in mental health. I graduated with Bachelor in Nursing from University of Texas Arlington, and Masters in Nursing from Texas States University, San Marcos. My free time, I enjoy spending time my family, pet (Ruffy), and gardening.
I have a Ph.D in Counseling. I've been a therapist since 1984 and I listen very well. I help clients with anxiety, depression and relationship issues and more.


Headway helps you find expert trauma-informed care — from finding the right therapist or psychiatrist, to understanding costs, to scheduling with ease.
Use left and right arrow keys to switch tabs. Press Shift+Tab to return to the tab list from links in the selected tab.