

Headway works with your UnitedHealthcare coverage in Justin, TX to maximize flexibility with virtual and in-person sessions. Our 4,828 provider network helps you find the right fit for your mental health needs.
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.
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.
As a counselor, I feel like mental health is a journey that is easier with a guide. I believe in empowering my clients and giving them the information and confidence to choose the paths along their journey that are best for them. I have been fully licensed since 2018 and I enjoy working with adults and couples.
I earned a Masters degree in Clinical Mental Health Counseling. I have experience working with adults who are struggling with trauma and grief.



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