Obsessive-compulsive disorder therapists & psychiatrists in Petaluma, CA

If you have tried therapy before without the results you hoped for, you may need a more targeted, effective approach. Over the past 15 years of my practice as a clinical psychologist, earning your trust and helping you establish a secure, empowering baseline for your care has been a profound privilege. As a former instructor at the David Geffen School of Medicine at UCLA and a provider at the UCLA Insomnia clinic, my goal is to provide more than just a space to talk—I offer the specialized, gold-standard steps necessary to create measurable, lasting change. At my practice, YCBT Services, I focus on working with adolescents, adults, and seniors who feel stuck despite their best efforts, specifically targeting generalized anxiety, social anxiety, OCD, panic disorders, and chronic insomnia. By addressing the underlying triggers that keep you on high alert, I am fiercely committed to helping you move beyond surface-level coping to reclaim your peace of mind.

I was born and raised in the Bay Area and have spent more than six years working as a therapist and medical social worker in a variety of settings, including healthcare systems, schools, and community-based programs. Throughout my career, I have had the opportunity to work with individuals across the lifespan, which has given me a broad understanding of the unique challenges people face at different stages of life.

I earned my Master’s Degree from California State University, East Bay, and specialize in supporting individuals experiencing PTSD, complex trauma, anxiety, grief, and work or life stressors that impact overall well-being. My approach is compassionate, collaborative, and trauma-informed, with a focus on helping clients process difficult experiences, build resilience, and develop practical tools to navigate life's challenges. My goal is to create a supportive space where you feel understood, empowered, and equipped to move toward healing and lasting growth.

As a Psychiatric Mental Health Nurse Practitioner (PMHNP), I’m trained at the graduate level in mental health care across the lifespan. I assess mental health concerns, diagnose conditions, prescribe and manage psychiatric medications, and provide psychotherapy. I also coordinate care with therapists, primary care providers, and other specialists as needed.

I’m a Licensed Marriage and Family Therapist based in Berkeley, California. I work with adults navigating trauma, anxiety, emotional overwhelm, life transitions, relationship patterns, and the lingering effects of difficult or painful experiences. Many of the people I work with are thoughtful, high-functioning, and insightful, yet still find themselves stuck in patterns that feel hard to shift alone.

My background includes training in EMDR, somatic and attachment-focused therapy, parts work, and ketamine-assisted psychotherapy. I earned my Master’s degree in Counseling Psychology from The Wright Institute. I also bring a mindfulness and body-based perspective to therapy through years of yoga and meditation practice.

My style is warm, collaborative, and depth-oriented while still practical and grounded. I especially enjoy working with complex trauma, highly self-aware clients, neurodivergent clients, and people who want therapy that goes beyond coping skills alone.

I am board certified Psychiatric Mental Health Nurse Practitioner providing telehealth services throughout California. I believe mental health care should feel supportive, respectful, and tailored to your unique needs.

Sometimes life can feel overwhelming. You may be struggling with anxiety, trauma, relationship difficulties, parenting challenges, grief, depression, or experiences from the past that continue to affect your present. Perhaps you find yourself reacting in ways that don't make sense, feeling disconnected from others, or carrying burdens that have followed you for years.

I believe that symptoms often make sense when we understand the story behind them.

For nearly 20 years, I have worked as a psychotherapist helping children, adolescents, adults, and families heal, strengthen relationships, and develop a deeper understanding of themselves. My experience includes working in private practice, schools, pediatric healthcare settings, and community mental health programs. I also taught graduate students in counseling and family therapy programs, helping train the next generation of therapists.

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.

Life can feel overwhelming—but you don’t have to navigate it alone. I’m here to help you regain clarity, stability, and a sense of control.

I’m Monika Delyser, a board-certified Psychiatric Mental Health Nurse Practitioner providing thoughtful, culturally sensitive care for adults experiencing burnout, anxiety, mood disorders, ADHD, and sleep challenges.

I work with professionals, entrepreneurs, students, and high-functioning adults who are dealing with anxiety, burnout, and focus challenges. Many of my clients appear “fine” on the outside but feel overwhelmed, mentally exhausted, or stuck.

Who I’m a Good Fit For: busy professionals under pressure, entrepreneurs and high performers, college and graduate students, adults seeking structured, goal-oriented care.

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.

Richard Perez is a Board Certified Psychiatric-Mental Health Nurse Practitioner. For over 15 years, he has dedicated his career to serving the healthcare needs of Long Beach and Los Angeles County. Richard wants to continue improving the lives of each patient by providing professional, compassionate, and person-centered care.

Richard has spent the last two years providing mental health care to underserved populations. This experience has significantly sharpened his clinical skills, which he now aims to bring to the general patient population.