Addiction therapists & psychiatrists in Oceanside, CA

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.

Hi I'm Eleanor! I am a Licensed Clinical Social Worker in California and New Mexico. I am passionate about empowering people to build self-trust and self-acceptance. Most of my clients come to therapy because they want to make a change or cope with a change that they did not choose.

Hello and welcome! My name is Shannon Merritt and I am a Licensed Marriage & Family Therapist (LMFT). I am based in Southern California and offer telehealth services to clients across the state. My expertise includes supporting individuals through life transitions, managing depression and anxiety, coping with loss, and addressing various mental health challenges. I am also passionate about helping people recover from addiction and/or trauma.

I draw from various modalities and tailor my approach to each individual and their specific needs. I aim to create a safe and supportive environment where clients feel at ease, can build resilience, and ultimately thrive. My communication style is straightforward, calm, and approachable. I offer clear and honest feedback in order to foster clients' wellbeing while developing hope for their future.

In our first session together, we'll start with brief introductions, then dive into the specific challenges you're facing. This will help me create a tailored plan for us to work through in follow-up sessions. Clients can expect to develop valuable insight and gain the tools needed to make meaningful changes in their lives.

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.

I am a Licensed Professional Counselor and National Certified Counselor with a Master’s in Clinical Mental Health Counseling and a Ph.D. in Counselor Education from the University of New Orleans. As an AASECT Certified Sex Therapist, I support clients in exploring intimacy, identity, and relationships with care and openness. I strive to honor your values, culture, and lived experience so you feel respected, understood, and empowered throughout our work together.