Trauma and PTSD therapists & psychiatrists in Fullerton, CA

Welcome. I'm Roxy, dedicated to helping you find what you are looking for in therapy. My goal is to offer a safe, compassionate space where you can heal and grow.

Hello, my name is Alexander Valenzuela PMHNP. I specialize in psychiatric medication management and cognitive behavioral talk therapy. If you're struggling with your mental health and realize you want help, you don't have to do it alone. I am looking forward to starting the journey with you to help achieve your best self.

I hold a Master’s degree in Clinical Psychology from Antioch University, Santa Barbara, California. My practice blends both psychological approach as well as eastern wisdom. With a diverse background of professional and life experiences, I bring empathy, warmth, and a solution-focused mindset to my clients. My goal is to help clients alleviate suffering, boost their productivitiy, and enhance well-being.

If you're feeling overwhelmed, stuck, or unsure how to move forward, you don't have to figure it out alone.

I help adults work through anxiety, ADHD, depression, and the stress of big life transitions so you can move forward with more clarity, confidence, and a renewed sense of direction.

I'm a Licensed Professional Clinical Counselor with over a decade of clinical experience, and I bring a calm, grounded presence to the work.

My background spans trauma-informed care, support for college students building self-advocacy and success strategies (especially those with learning differences), and extensive work with the military community — including wounded warriors and their families.

Whether you're navigating a career or life change, managing attention or focus challenges, working through anxiety or depression, or facing relationship stress, I offer a safe, collaborative space where real growth is possible.

Clients often describe me as warm, real, non-judgmental, and direct in a supportive way. I'm LGBTQIA+ affirming and welcome people from all backgrounds with a spirit of inclusion and care.

As a Psychiatric Mental Health Nurse Practitioner, I aim to create a space where you feel heard, respected, and understood. I believe mental health care should be collaborative, practical, and tailored to your unique needs. My approach combines evidence-based treatment with real-life understanding whether that includes therapy, lifestyle changes, or medication management when appropriate. I value honesty, cultural awareness, and meeting you where you are. My goal is to help you feel more stable, confident, and in control of your mental health not just during appointments, but in your everyday life.

I’m Maria, and I am a Licensed Marriage and Family Therapist with over twelve years of experience working with families, children, and adults. My work has focused on breaking generational cycles of trauma and navigating challenging life transitions. In my work I have supported individuals and families through growing up, raising their children, and bringing healing and harmony into the home. I am deeply passionate about helping others on their journeys toward personal growth and a better quality of life and consider it a gift to be an agent of change.

In addition to my clinical work, I am also a working mother of a college student and clinically supervise and train other clinicians. This experience gives me a unique perspective and understanding on navigating life transitions and balancing multiple roles.

My approach is warm, affirmative, and solution-oriented – with some humor mixed in. While it can feel intimidating to take that first step, if you are ready, I can guide you in finding areas of strength while also challenging areas for growth in a compassionate way. Together we can work toward healing in a safe environment and create positive change to improve your quality of life.

Hi, I'm Tandrea Thysell, a California-based Marriage & Family Therapist. I've been providing therapy for most of my life (I think I was born to do this!), but professionally for more than 10 years.

IMPORTANT: For current availability, visit https://mentalhealthpractitioners.com/ or call/text us anytime at 415-968-6515—we make it super easy! Intake forms are required before your first appointment and will be emailed to you when you book online. Please be sure to send us a picture of your insurance information and photo ID!

I'm Stephanie Patrick-Calvillo, a Board-Certified Psychiatric Mental Health Nurse Practitioner who believes mental health care should be accessible, compassionate, and tailored to each individual. Over the past 15+ years, I've worked with diverse populations—from adolescents facing their first mental health crisis to adults navigating complex psychiatric conditions, and seniors experiencing cognitive and emotional challenges.

My practice is grounded in the belief that effective treatment goes beyond symptom management. I take time to understand your unique story, your strengths, and the factors that shape your mental health. Whether you're dealing with a new diagnosis or have been managing symptoms for years, I meet you where you are with respect and without judgment.

I specialize in treating mood disorders, anxiety, psychotic disorders, personality disorders, substance use concerns, and behavioral issues related to dementia. I've completed advanced certification training because I'm committed to staying current with evidence-based treatments—ensuring you receive care that reflects the latest research.

Beyond clinical work, I'm passionate about mentoring the next generation of healthcare providers. I've mentored nursing and nurse practitioner students from multiple universities, which keeps me grounded and reminds me why this work matters.

When you work with me, you're getting someone who genuinely cares, who's seen mental health challenges from many angles, and who believes deeply in your capacity for healing and growth.