

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.
Margarita Rice is a double-board-certified psychiatric-mental health and family nurse practitioner. Her education and clinical experience give her a well-rounded perspective on physical and mental well-being. She treats mental health, metabolic health (wellness, weight loss, prediabetes), and hormone health (BHRT for men and women.
My name is Bernard Kofi Marfo, a Board Certified Family Psychiatric Nurse Practitioner with Hope Psychiatry & Associates located in Frisco Texas. My practice is licensed in IA, AZ, & WA. I have diverse clinical background in critical care, mental health consults, and medication management. I look forward to be part of the team helping you to get your life back and living happily.
Hi, I’m Sabina Onwonga, DNP, a dual-certified Family Nurse Practitioner (FNP) and Psychiatric Mental Health Nurse Practitioner (PMHNP). I earned my Doctor of Nursing Practice (DNP) from UMass Global University and my Master of Science in Nursing (MSN) from the University of Texas at Arlington.
I provide compassionate, evidence-based psychiatric care and specialize in treating ADHD, anxiety, depression, bipolar disorder, PTSD, and counseling support, helping clients feel heard, supported, and empowered to reach lasting stability and wellness.
Ms. Faiza Haque is a warm and compassionate nurse practitioner. She pursued her master's degree in nursing from the University of Texas Rio Grande Valley. She is a caring individual and invests in instilling trust among her patients. Located in Pearland, TX, Ms. Haque is available for exams and consultations at Texas Behavioral Health. As a proponent of preventive care, she feels strongly that our lifestyle, including food choices and exercise habits, has a profound impact on our well-being. Ms. Haque is committed to making each patient's experience at the practice as comfortable and practical as possible. She believes that an amalgamation of sound medical judgment, technology, and an optimistic attitude are needed to guarantee quick recovery and thorough care.
Ms. Tyisha Davis is a dedicated and compassionate nurse practitioner. Based in Friendswood, TX, she is currently associated with Texas Behavioral Health. As an experienced professional, she is well-equipped to treat a wide range of conditions. As a part of her academic training, Ms. Davis attended Walden University, where she earned her master's degree in psychiatric mental health counseling. She augments this training with her day-to-day experience. Ms. Davis gives each patient her focused attention and prides herself on delivering the best treatment available. She is sensitive to the uniqueness of each patient's situation and adapts her consultations and treatment options appropriately to accommodate individual needs and concerns.
I am a Psychiatric Nurse Practitioner with experience providing care in both inpatient and outpatient psychiatric settings. My clinical background allows me to support adults across a wide range of mental health needs—from acute stabilization to ongoing outpatient treatment—while maintaining a thoughtful, individualized approach to care.
I received my Psychiatric Mental Health Nurse Practitioner (PMHNP) degree from Texas State University, where I developed a strong foundation in evidence-based psychiatric assessment, diagnosis, and treatment. I am known for my warm, approachable style and for taking the time to truly listen, as I believe effective mental health care begins with trust, collaboration, and feeling understood.
I specialize in the evaluation and treatment of anxiety, depression, bipolar disorder, schizophrenia, schizoaffective disorder, ADHD, trauma-related concerns, and life stressors. My approach emphasizes conservative medication management, clear patient education, and shared decision-making so individuals feel informed and confident in their care.
In addition to my psychiatric training, I have a background in women’s health, which enhances my understanding of how physical health and life-stage factors can influence mental well-being. This perspective allows me to provide well-rounded, inclusive care for all adults.
Whether you are seeking psychiatric care for the first time, transitioning from inpatient treatment, or looking for ongoing outpatient support, my goal is to provide a supportive, non-judgmental environment where you feel respected, heard, and empowered throughout your care.


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