

Michael M. Zavala, DNP, APRN, FNP-C, PMHNP-BC is a Texas and New Mexico based Psychiatric-Mental Health Nurse Practitioner focused on holistic integrative psychiatry.
I help adults experiencing obesity, anxiety, depression, trauma/PTSD, and burnout/moral injury rediscover their sense of excitement and engagement with work, loved ones, and life by offering a specialized approach for those motivated to uncover the root cause of their symptoms, with medication as an option, NOT the only option.
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.
You’re the one who usually has everything under control, but lately, the "strong" version of you feels like a mask that’s getting too heavy to wear. Whether you’re a mother wondering why you feel detached from the life you worked so hard to build, or a parent exhausted by the cycle of ADHD-related challenges—you don’t have to carry this alone.
I provide a warm, judgment-free space where you can stop surviving and start thriving. My approach is patient-centered, trauma-informed, and evidence-based, tailored to move you toward a life where you feel present, connected, and capable.
I specialize in:
Why Work With Me?
I offer a "cozy" office experience in Houston, TX, and convenient virtual care across 7 states ( DE, FL, GA, IA, KS, MT, and TX). My goal is to make mental health easy, accessible and relatable.
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.


Headway makes it easy to find support for your mental health — from finding the right provider, to understanding costs, to scheduling with ease.