Trauma and PTSD therapists & psychiatrists in Rancho Cucamonga, CA

I specialize in helping individuals navigate life transitions, anxiety, depression, narcissism, codependency, people-pleasing, and trauma. My approach is client-centered and collaborative, tailored to your specific needs and goals.

Demetric “Dee” Marsh, LCSW, JD, is a dedicated behavioral health professional with over 25 years of experience in the mental health field. She is a multistate licensed Licensed Clinical Social Worker and holds a Juris Doctor degree from the Jacob D. Fuchsberg Law School in New York. She earned her Master’s degree in Social Work from Adelphi University, with a specialization in mental health and addictions, and holds a Bachelor’s degree from Hofstra University in Sociology with a minor in Political Science and French Language/Culture.

Dee has extensive experience working in a variety of roles, including psychotherapist, program director, clinical supervisor, adjunct professor, and consultant. She also provides LCSW clinical supervision. Her practice includes working with individuals, families, couples, and groups.

She specializes in a wide range of areas, including anxiety, depression, trauma, stress management, addictions, grief and loss, workplace and employment issues, women’s issues, diversity and cultural concerns, spirituality, and court-related assessments and recommendations, as well as foster care and adoption-related services.

Dee believes in meeting each client where they are and tailoring treatment to their unique needs. She is committed to creating an inclusive, safe, and supportive environment that fosters trust, healing, growth, and a strong therapeutic alliance.

I’m a bilingual Licensed Marriage and Family Therapist who provides therapy in both Spanish and English, from colloquial to professional levels. My work has included supporting individuals facing HIV/AIDS-related challenges, domestic violence, substance use, loneliness, suicidal thoughts, dual diagnosis, sexuality-related concerns, aging-related issues, and the broader impact these experiences can have on families and support systems. Across community, academic, and clinical settings in Mexico and the U.S., I’ve built a strong foundation in helping people navigate both personal suffering and societal distress.

Are you doing the same thing over and over again and expecting different results? Have you tried countless times to change a your behavior? Have you recently left inpatient rehabilitation or a psychiatric ward and need additional support? Do you feel like your mood, anxiety, and depression are running your life? Making these changes can be extremely difficult and cannot be done alone. My name is Lauren Debski. I am a dual board-certified family and psychiatric-mental health nurse practitioner.

I'm not just your therapist — I'm a mama who has been in the trenches too. After navigating my own postpartum experience and the heartbreak of pregnancy loss, I found my purpose: walking alongside mothers and families during some of life's most tender and transforming moments. Raising my amazing autistic son has also deepened my understanding of what it means to parent with love, resilience, and a whole lot of grace.

I believe healing happens when you feel truly seen — not judged, not rushed, just held. My approach is rooted in authenticity and compassion, creating a space where your full story is welcome. Whether you are struggling with postpartum depression, anxiety, grief, or the emotional weight of a special needs diagnosis, you do not have to carry it alone.

This work is personal to me. And that's exactly why I show up the way I do.

I believe therapy should feel like a space where you can finally exhale. I strive to create an environment that is supportive, honest, and free of judgment; a place where you feel truly seen and emotionally safe. My approach is collaborative and practical. I don’t just help you understand why you feel the way you do; I help you build real tools to navigate it.

I earned my degree from Cal State Fullerton and have extensive experience working in addiction treatment, eating disorder recovery, and women’s issues. Supporting women is especially meaningful to me. I am deeply passionate about helping women navigate challenges related to self-worth, body image, relationships, boundaries, life transitions, and identity. I understand how trauma, societal expectations, and relational dynamics can shape how women see themselves, and I approach this work with both compassion and clarity.

Together, we focus on strengthening mindfulness, emotional regulation, distress tolerance, and communication skills in ways that feel realistic and sustainable. I blend insight-oriented exploration with concrete strategies, because meaningful change happens when insight meets action. My goal is to help you better understand your patterns, feel more confident managing your emotions, and move forward with greater clarity, self-trust, and resilience.

Welcome!

As a licensed Marriage Family Therapist (LMFT), I believe in prioritizing out mental health as a way to live a happy and balance life. Reaching out for help can be one of the hardest things a person can do, great job on taking that step! I’ve been practicing for 10 years, but in the field for 20 plus years. In the last 6 years I have shifted my main focus to adults 18 plus who are struggling with trauma and substance use.

Struggling with anxious thoughts or self-doubt? I work with young adults navigating anxiety, life transitions, trauma, and self-esteem challenges. Together, we’ll build coping skills and create a personalized plan for growth that feels empowering and achievable.

Feeling stuck or overwhelmed? You’re not alone. I help clients navigate anxiety, self-doubt, and life changes with curiosity and compassion. My goal is to help you feel more grounded, confident, and connected—to yourself and the life you want to create.

My journey into mental health began with a deep interest in the intersection of human behavior and emotional resilience.

I enjoy working with adolescents and adults going through life transitions and experiencing trauma. My current practice includes individual treatment helping adults with anxiety and depression, self-esteem/confidence, grief, trauma and life transitions! Finding a therapist with whom you connect with is important.

Over the past 14 years, I have worked in a variety of settings, including private practice, community clinics and public school settings. These experiences have shaped my belief that therapy is not a "one-size-fits-all" process, but rather a collaborative partnership built on trust and evidence-based strategies!

I hold a Master of Social Work from California State Long Beach as well as a Bachelor of Social Work from Azusa Pacific University..