

Headway makes mental healthcare accessible for Aetna members in Southlake, offering copays between $0-$50 and a vast network of 9,566 licensed providers. Get started with a free consultation, receive care in-person or virtually, and benefit from providers with availability as soon as the next day.
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.



Headway makes it easy to get affordable in-network mental health care with Aetna — from finding the right therapist or psychiatrist, to understanding costs, to booking your first session.
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