

Colleyville residents with UnitedHealthcare can connect with 4,885 providers through Headway for therapy and medication support. Many patients save significantly on sessions while enjoying flexible scheduling and free initial consultations.
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.
Thank you for stopping by! I am excited to get to know you and begin this beautiful journey of growth. Whether you are starting a new journey or you’re looking to pick up where you left off, I’m glad you stopped by!
It is my passion to work with people, as they challenge themselves to grow and evolve. Many of us experience challenging feelings of depression, anxiety, relationship stress, and stress of dealing with the many transitions of life. At times, these challenging feelings can make us feel alone or isolated from our communities of love and support. I believe that I am here to walk alongside you and provide insight and support as you begin to see yourself grow and reach the goals that you set for yourself. I primarily work from a narrative perspective, but I pull from many different approaches to create a safe and efficient environment for my clients to explore and reflect on themselves and their situations.
Hello! I have experience working with adolescents and adults using a variety of therapy techniques in individual and group therapy sessions. I work with a variety of treatment modules including CBT, DBT, motivational interviewing, existential therapy, acceptance and commitment therapy, and mindfulness. I have worked extensively in crisis experience and with clients in crisis partial hospitalization (PHP), intensive out-patient (IOP), and in school settings.
I help people develop healthier strategies for meeting their needs, especially in relationships. If you have been impacted by stress, trauma, or loss, or if things just aren't working, please get in touch. With over 10 years of experience providing care, I am ready to help you!
Welcome! I am a health psychologist who is interested in helping people reach their maximum potential in their physical, mental, and spiritual health. I believe that counseling can promote self-efficacy, healing, peace, hope, and a sense of purpose. I believe that individuals are created wonderfully in body, mind, and spirit. In order to reach full potential of health, each domain must be addressed for whole body wellness. I practice with the intent of finding natural solutions to wellness.
Our current and past life circumstances can often leave us with feelings of stress, anxiety, and sadness. These emotions can be confusing and difficult to manage and process. My goal is to come alongside clients to reach personal goals, using warmth, understanding, and acceptance. I will work with you, with you in the driver’s seat, to set goals, explore and gain understanding of yourself, process your emotions in a safe space, reframe negative beliefs about yourself, and find solutions that work for you. I enjoy working with clients with a variety of concerns including general anxiety, depression, trauma, and relationship issues.
Psychiatric Mental Health NP
Virtual & in-person • 13 mi away • Arlington, TX



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.
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