Trauma and PTSD therapists & psychiatrists in Missouri City, TX

John Gillespie is a dedicated Licensed Master Social Worker (LMSW) providing individual and group counseling in Houston, TX. He earned his Master’s degree from the Warden School of Social Work at Our Lady of the Lake University in San Antonio, and though he trained across Texas, he proudly calls Houston home.

I work with both couples and individuals, using approaches that fit who you are and what you’re going through. As a parent to adult children, I understand firsthand how challenging it can be to raise kids and stay connected, and how important it is to feel supported along the way. With my background as a Registered Nurse, I also bring a mind-body perspective to our work together.

Is your child feeling overwhelmed, withdrawn, or unlike themselves? I’m an LPC with 5 years of experience as a teacher and 9 years as a high school counselor. I support children and teens navigating trauma, suicidal thoughts, self-harm, depression, anxiety, and other challenges that can feel overwhelming for the whole family. I offer counseling in English and Spanish.

Katherine Castelo, LCSW is a licensed therapist and certified clinical supervisor in Virginia, Texas, Florida, West Virginia, Indiana, Maryland, and Colorado. With over 25 years of experience, she specializes in trauma, military and veteran mental health, first-responder wellness, grief, deployment-related stress, and major life transitions.

A former Marine Corps veteran spouse, Katherine brings lived experience and deep cultural understanding to her work. She has served across the DoD, VA, nonprofit, and civilian sectors, providing high-level clinical care, consultation, and program leadership.

She previously oversaw a Defense Health Agency program for transitioning service members and served as the U.S. Army Reserve Psychological Health Program Director, leading outreach for more than 200,000 soldiers and families and advising on post-suicide psychological autopsies as part of the USAR Fatality Review Board.

Katherine also worked as a civilian Employee Assistance Program (EAP) manager for the U.S. Navy and as a casualty assistance consultant for NCIS, developing programs focused on readiness, crisis response, and deployment-cycle support.

As founder of Awaken Wellness Center, her practice centers on trauma recovery, crisis intervention, and integrative therapies. She is trained in Brainspotting, IFS-informed work, and trauma-responsive care, and has provided trainings for service members, clinicians, and community providers on PTSD, MST, suicide prevention, and Brainspotting.

Today, Katherine consults with the SAFE Project’s SAFE Veterans initiative and teaches caregiver wellness classes with Semper Fi & America’s Fund, bringing compassionate, evidence-based, culturally grounded care to military members, veterans, first responders, caregivers, and their families.

For those who value efficiency. My approach is direct, strategic, and results-driven.

You are driven, smart, and successful. Something is keeping you stuck. Let’s investigate and make real progress. I work a little differently. Direct feedback, thoughtful goals, and therapy that is intentional, not endless.

I specialize in helping adults overcome addiction, including substance use and gaming addiction. I understand the challenges of rebuilding relationships, setting boundaries, and addressing the underlying causes of addictive behaviors. My approach is supportive, relatable, and focused on practical growth. I also work with individuals experiencing depression, anxiety, and suicidal thoughts.