Bipolar disorder therapists & psychiatrists in Tyler, TX

Hi, I’m Ngozi Kalu, PMHNP-BC, AGNP-C, a board-certified psychiatric nurse practitioner serving clients across Texas. I provide compassionate, evidence-based mental health care for adults and teens, helping them regain balance and confidence in their daily lives.

I specialize in treating anxiety, depression, ADHD, trauma, and sleep disorders, and other mental health disorders. I also work closely with patients and their families to create treatment plans that fit their unique goals. My approach combines thorough psychiatric evaluations, medication management, and supportive counseling to help you feel better, think clearly, and live with purpose.

Many of my patients come to me when life feels overwhelming, relationships are strained, or focus and motivation seem out of reach. Together, we identify what’s getting in the way and build a clear, personalized path forward.

I believe healing happens when care is collaborative, respectful, and accessible. That’s why I offer flexible scheduling and accept insurance through Headway so you can get started without delay.

If you’re ready to take the next step, I’d be honored to partner with you in your journey toward wellness.

Hello, I’m Henrietta Pieh, MSN, APRN, PMHNP-BC, a Board-Certified Psychiatric Mental Health Nurse Practitioner. I provide compassionate, patient-centered care to individuals across the lifespan through comprehensive psychiatric evaluations, medication management, and supportive collaboration.

My background includes years of nursing experience in inpatient psychiatry, crisis stabilization, addiction recovery, and geriatric mental health. I believe in meeting clients where they are, building trust through empathy, and working together toward meaningful progress and emotional well-being.

Whether you are navigating stress, depression, anxiety, trauma, or other life challenges, my goal is to create a safe and supportive space where you feel heard, respected, and empowered in your healing journey.

I’m a board certified psychiatric mental health nurse practitioner with 20 years of experience caring for patients across a wide range of clinical settings including cardio thoracic vascular surgical intensive care units, and coronary care units. This extensive background has shaped holistic understanding of health and allows me to approach mental health care with both clinical precision and genuine compassion. I am specialized in treating adults (ages 18 and older) with depression, anxiety, PTSD, bipolar disorders, sleeping disorders, substance use disorders with a particular focus on treatment resistant depression. I have specialized training in advanced treatment modalities including ketamine infusions, Spravato, and Trans cranial magnetic stimulation (TMS).

There are moments where each of us experience difficult and stressful points in our lives. Whether it's a painful divorce, the loss of a loved one, the loss of a job, going through stress in a relationship, unresolved self-esteem issues, questions about gender or sexuality, dealing with a troubled child, family stress, or facing pain from childhood and/or adult trauma. Life can be hard at times; there is no doubt about that. I have come to view those challenging times that we all experience, albeit in different ways, as opportunities for us to make positive changes and adjustments - what I like to call "reset moments."

As a Licensed Professional Counselor, I rely on Cognitive Behavioral Therapy to help move my clients to lasting change. I have experience working in schools, hospitals, and in my own private practice. Through individual counseling, we move from places of stagnation and fear into the amazing future that each of us deserves and I believe we can have.

I am always amazed at the strength and courage of my clients. It's never easy to take that first step, to commit to the process of change, to put in the effort to do the hard work, and to hope for more. We must always remember that each of us has the power to be who we are intended to be and to create the lives we want. I look forward to working with you...

Hello, my name is Miguel A. Diaz and I am a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) with a Doctor of Nursing Practice (DNP) degree. I was born and raised in rural South Texas, which gives me a deep understanding of the unique challenges our local communities face when it comes to mental health care. My experience as a U.S. Army veteran has taught me the importance of resilience, service, and compassion—values I bring to every client relationship.

I specialize in providing psychiatric evaluation, medication management, and treatment for a wide range of mental health concerns, including anxiety, depression, and ADHD. My practice focuses on increasing access to care for children, adolescents, adults, and seniors, especially those living in underserved rural areas. Whether you’re new to mental health treatment or looking for ongoing support, you can expect care that is empathetic, evidence-based, and tailored to your individual needs.

I welcome you to reach out and take that first step toward improving your well-being.