ADHD therapists and psychiatrists in Costa Mesa, CA

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.

I'm an open minded individual and welcome any topics in treatment

Welcome to my profile! As a Licensed Clinical Social Worker, I believe that prioritizing mental health will set the foundation for the path ahead of you. It's not easy to start your journey but what matters is that first step, which to me, is understanding what your mind and emotions need so that you can begin to mold yourself into the person you deserve to become. I have been practicing for 4 years and enjoy supporting individuals, couples, and families in facing their challenges with confidence.

Hi, I’m Mercy Nyeche, DNP, PMHNP-BC. I’m a board-certified Psychiatric Mental Health Nurse Practitioner dedicated to helping adults regain clarity, confidence, and emotional balance.

Reaching out for support can feel overwhelming especially when you’re used to being the strong one for everyone else. Whether you’re navigating anxiety, depression, burnout, life transitions, or feeling stuck in patterns that no longer serve you, you don’t have to do it alone.

My approach is compassionate, collaborative, and evidence-based. I take time to truly listen, understand your goals, and create a personalized treatment plan that fits your life, not just your symptoms.

Please note that I do not provide disability paperwork, leave of absence documentation, FMLA forms, legal letters, school accommodation letters, or other administrative forms. The only documentation I provide is a work excuse note for the date of your appointment and, when clinically appropriate based on my evaluation and professional judgment, up to three (3) days off from work. If you require any of the services or documentation listed above, I kindly ask that you schedule with another provider who offers those services. Thank you for your understanding and for helping ensure that your healthcare needs are matched with the appropriate provider.

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, 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 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 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 am dedicated to helping teens struggling with trauma and self-harm behavior. My experience working with Orange Unified School District, running groups from grade 6-12 for students struggling with emotional and behavioral problems has given me unique insight into not only helping teens, but also working with the families, schools, and community to provide more effective treatment. I have partnered with Western Youth Services in helping at risk teens and low income families in helping adolescents to overcome academic barriers and families cope with serious defiance and drug use.