ADHD therapists and psychiatrists in Whittier, CA

I am currently a licensed psychologist in California, having previously worked as a psychotherapist under supervision for over 14 years. As an independent practitioner, I am accepting new clients, both in person and by remote means.

I seem to work especially well with younger and middle-aged people who are creatively inclined and having difficulty with self-realization and/or interpersonal relationships, from important relationships to everyday interactions with others. In the past, I have worked in community-based and private addiction recovery settings across a wide demographic. I specialize in trauma informed treatment that includes PTSD, depression, anxiety and phobias.

I seem to work especially well with younger and middle-aged people who are creatively inclined and having difficulty with self-realization and/or interpersonal relationships, from important relationships to everyday interactions with others.

Hello, my name is Sherri Crespin, a board-certified Psychiatric Mental Health Nurse Practitioner passionate about providing integrated care for complex mental health challenges, including personality disorders, PTSD and trauma, schizophrenia and psychosis disorders, substance use disorders, ADHD, depression, anxiety, panic disorders, mood disorders, and bipolar conditions. My practice recognizes these conditions are interconnected in ways requiring specialized understanding.

I chose these specializations because I understand how trauma influences personality development, how ADHD complicates substance use recovery, how psychotic symptoms emerge during extreme stress, and how these complex interactions require providers who see the complete picture. Whether you're in recovery while managing other conditions, dealing with personality patterns that developed as survival mechanisms, or navigating multiple diagnoses, I bring the expertise needed for comprehensive care.

My approach emphasizes evidence-based treatments and the healing power of being truly understood. I recognize that seeking help for stigmatized conditions like personality disorders or psychosis takes tremendous courage, especially after negative experiences with providers. I create a therapeutic space where you can explore your experiences without judgment or shame.

You can expect a thorough assessment, personalized treatment planning, and consistent support throughout our work together. My goal is to help you build resilience, develop effective coping strategies, and thrive in your daily life.

IMPORTANT: For current availability, visit https://mentalhealthpractitioners.com/ or call or text us anytime at 415-968-6515—we make it super easy! Intake forms are required before your first appointment. You can text us your info or email us at [email protected]. Please send us a picture of your insurance information and photo ID!

I was always drawn to people who went unseen or unheard. Others told me I had a calm voice and that they could tell me anything. That led to a lifelong study of how people free themselves from their own patterns, later deepened by psychoanalysis and professional work in eating disorders, addiction treatment, and managed care settings like Kaiser.

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 am a Licensed Marriage & Family Therapist, LMFT 123208. I worked as a teacher and decided to go back to school and continue my education, to enable me to work with families, couples and individuals in a therapeutic setting. My focus is family, marriage and couples counseling. I have experience working with families that have unconventional lifestyles. In addition, I have experience working with couples, teens, groups and children. I have worked with the school district as a mental health counselor, as well as conducted group therapy in all settings. I am trained in Gottman Method for Couples and Bariatric Assessment certified.

•Couples Counseling •Specialization in Gottman Method and Sex Therapy. Individual Adult, Tween & Teen Counseling •Anger Management, ADHD, ADD. Certified Bariatric Assessments. Supervision for Interns. Family Therapy, and court appointed therapist for Reunification Therapy.

I believe that each individual has a purpose and that sometimes we need assistance in finding our purpose. Let me help you find your own purpose or regain focus on your life's path to feeling satisfied in the life you are living. I am available via online or in person and licensed in California and Arizona.

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 have been a Licensed Marriage and Family Therapist for 28 years. I have worked in a Foster Care agency, as a Clinical Supervisor at a Children's Clinic in East LA and at a Drug, Alcohol, and Mental Health Facility. I also provided therapy for our military.