Obsessive-compulsive disorder therapists & psychiatrists in Laguna Hills, CA

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!

My goal with therapy is to provide a safe and open space to process and prioritize a growth mindset. I tailor my therapeutic approach to best match the needs of the client and truly believe in promoting acceptance. Some modalities I have experience with and may incorporate into therapy are Acceptance Compassion Therapy, Motivational Interviewing, Solution Focused, Client-Centered, Cognitive Behavioral Therapy, Here-and-now Counseling, Trauma-Informed, and Holistic. I have a passion for working with individuals who are looking to unpack complex emotions and experiences that have shaped their understanding of the world.

I am a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) with a DNP (Doctor of Nursing Practice) degree from the University of Massachusetts Global. I have experience working with adolescents and adults in multiple settings facing various complex mental health issues, including OCD, depression, anxiety, ADHD and mood disorders.

I’m a licensed clinical social worker who specializes in helping children, adolescents, adults, couples, and families navigate anxiety, depression, panic, trauma, PTSD, and other life stressors. With experience in psychiatric crisis care and community outreach, I believe healing starts with feeling safe enough to show up. My goal is to offer real, judgment-free support that meets you where you are and helps you move toward lasting growth.

I’m a naturally curious, growth-oriented human who believes healing happens when insight meets action. I love helping people zoom out to see the bigger picture of their lives—while also gently zooming in on the patterns, habits, and beliefs that shape their everyday experience.

I’m drawn to the intersection of self-awareness and real-world momentum. Therapy with me is thoughtful, collaborative, and grounded. We can explore the deep stuff—identity, relationships, purpose, transitions—while also building practical tools you can actually use on a Tuesday afternoon when life is lifing.

I value emotional honesty, nervous system regulation, and sustainable growth over quick fixes. I believe you’re not broken—you’re adaptive. Together, we figure out what’s working, what’s outdated, and how to move forward in a way that feels aligned, empowered, and authentically you.

Expect warmth, insight, humor when it fits, and a space where all parts of you are welcome. Healing doesn’t have to be clinical and cold—it can be connected, intentional, and even a little energizing.

My name is Dianne Fontaine, MSN, APRN, and I'm a Licensed Psychiatric Mental Health Nurse Practitioner, Board Certified (PMHNP-BC) by the American Nurses Credentialing Center (ANCC). I obtained my Master’s Degree from Walden University and has undergone advanced clinical training, equipping me to assess, diagnose, and treat a spectrum of psychiatric illnesses, as well as provide psychotherapy.