Obsessive-compulsive disorder therapists & psychiatrists in Murrieta, CA

If you’re struggling with your relationship with food, your body, or feeling stuck in cycles of restriction, bingeing, or guilt, you are not alone—and you don’t have to face it by yourself. In my private practice, I specialize in working with individuals navigating eating disorders and disordered eating.

I provide compassionate, individualized therapy for adolescents and adults experiencing anorexia, bulimia, binge eating disorder, chronic dieting, and body image concerns. In addition to eating disorder treatment, I work with children, teens, and adults facing anxiety, depression, trauma, personality disorders, substance use, and challenges related to identity and the LGBTQIA+ community. I am committed to creating an affirming, inclusive space where clients of all backgrounds feel seen, respected, & supported.

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 Together, we figure out what’s working, what’s outdated, and how to move forward in a way that feels aligned, empowered, and authentically you.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.

Hi! Are you curious about what therapy would be like? Or maybe you’ve gone before and are back for more? One of my first goals is to make sure you feel at ease with the therapeutic process. You don’t have to worry about what to say or where to start. It’s my honor and duty to ask the questions and listen intently. I’m here for you!

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.

It is my prayer to build a practice that helps you reach a place where your mental health is truly at the forefront. My hope is that with each appointment—and each day—you feel supported in moving closer to the best version of yourself.