Obsessive-compulsive disorder therapists & psychiatrists in Surprise, AZ

So nice to meet you!

As a board certified psychiatric nurse practitioner, I believe good mental health is paramount for a stable and happy life. Congratulations on taking the first step in seeking help for your mental health! I’ve been practicing for 3 years with my main focus now on female clients aged 15-55 who are struggling with anxiety, depression and bipolar disorder.

I am a double board-certified Psychiatric–Mental Health Nurse Practitioner with over 20 years of experience across the continuum of psychiatric care, including acute psychiatric emergencies, inpatient and outpatient psychiatry, geriatric mental health, intellectual and developmental disability services, and healthcare management. I hold a Master of Science in Nursing (MSN) and am currently completing my Doctorate, reflecting my ongoing commitment to clinical excellence, evidence-based practice, and lifelong learning.

Throughout my career, I have worked with individuals and families navigating a wide range of psychiatric conditions, from situational anxiety and depression to severe and persistent mental illness. My clinical experience includes extensive work with schizophrenia and psychotic disorders, bipolar disorder, major depressive disorder, generalized anxiety disorder, panic disorder, obsessive–compulsive disorder (OCD), trauma-related conditions, and mood instability across the lifespan. I am particularly experienced in caring for geriatric patients, individuals with intellectual and developmental disabilities, and patients with complex medication regimens requiring careful evaluation, simplification, and long-term stabilization.

I also work closely with college-aged patients and adults who are navigating academic pressure, career transitions, family dynamics, identity development, and the cumulative stressors that can emerge during periods of high responsibility or change. Many of my patients are high-functioning individuals who appear “put together” on the outside but struggle internally with anxiety, rumination, intrusive thoughts, emotional dysregulation, or burnout. Others are managing chronic psychiatric illness while striving to maintain independence, relationships, and quality of life.

Down to earth and very open minded. I believe in complete transparency and accountability.

Congratulations for taking this step toward improving your health! I've worked with Native Americans, Veterans, seniors, new moms, elderly folks, teens and adults. I work with creative people because I understand and respect your uniqueness. I have been a PMHNP for 15 years, and an RN for many more. I earned a BA from CUNY, a BS from NYU, and an MS in Nursing specializing in psychiatry, from SLU. I am a safe and experienced prescriber of medication, and will find the right fit for you.

Welcome to my practice! I'm a dedicated Psychiatric Mental Health Nurse Practitioner specializing in diagnosing and treating a range of psychiatric disorders, including anxiety, depression, dementia, substance abuse disorders, and more. With a holistic approach, I aim to blend psychiatric and primary care to enhance your physical and mental well-being. My primary goal is to empower you to manage your chronic conditions effectively.

Trained in EMDR, IFS, Somatic Experiencing and mindfulness, I integrate mind/body work and neuroscience to support safety, embodiment and meaningful change. My practice is non-pathologizing, queer and neurodivergent affirming and body and collective liberation oriented.

Dr. Vandenberg has over 25 years of experience in mental health treatment. As a board certified advanced nurse practitioner with a clinical doctorate, Dr. Vandenberg has extensive training providing psychiatric medication management for all ages.

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​With a background in both family practice and psychiatric mental health, Dr. Vandenberg recognizes the importance of treating the whole person, mind and body. She received her Bachelors of Science in Nursing from the University of Virginia and her Masters of Science in Nursing Education from Mercer University. Dr. Vandenberg went on to receive her post Masters of Science as a family nurse practitioner (FNP), psychiatric mental health nurse practitioner (PMHNP) and a Doctorate in Nursing Practice (DNP) at the University of Tennessee.

Dr. Vandenberg has practiced in a variety of psychiatric, integrated care and academic settings. Her research interests include integrative care , binge eating disorder and non suicidal self injury across the lifespan.

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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.