ADHD therapists and psychiatrists in Flagstaff, AZ

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

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.

Taking the first step toward better mental health is an act of courage, and I am here to support you every step of the way. As a Psychiatric Mental Health Nurse Practitioner, I am committed to providing compassionate, personalized care that honors your unique story, background, and lived experiences.

My approach is collaborative and patient-centered. I take the time to truly understand who you are — your strengths, your challenges, and your goals — so that together we can build a care plan that is meaningful and effective for your life. I believe that the therapeutic relationship is the foundation of good outcomes, and I am dedicated to creating a space where you feel safe, respected, and genuinely heard.

I have over 36 years of clinical experience working with a wide variety of clinical disorders. I offer services to a multitude of client populations. I also conduct individual, couples and family therapy sessions.

I believe you should not have to spend months in therapy before you begin to feel hope. My goal is for you to leave your very first session with some form of relief, a greater understanding of what you’re experiencing, and a clearer path toward healing. I specialize in trauma, attachment, and recovery, and I work with both children and adults of all ages. At the heart of my work is a deeply held belief that trauma does not have to define the rest of your life. Healing is closer than you think.

Hi, my name is Dan. I bring a deeply personal understanding to mental health care. Having witnessed family members and fellow veterans navigate their own struggles, I know firsthand how isolating and disorienting it can feel to need support. I approach every session with the patience, attentiveness, and genuine care I would offer someone I love — listening not just to your words, but to what you're truly trying to communicate. My commitment is to always be as honest with you as possible, because I believe real help requires real honesty. When I'm not working, I enjoy reading and spending time outdoors.

I am an RN with over 18 years of experience in nursing, specializing in mental health care. I am also a PMHNP-BC, and I obtained my first degree from Grand Canyon University and my Masters from Walden University. I manage clients across the lifespan and use a holistic and patient-centered approach.

Dr. Paul Okoronkwo is a board-certified Psychiatric Mental Health Nurse Practitioner with 5 years of experience in treating adolescents and adults with depression, anxiety, panic disorder, ADHD, insomnia, and mood disorders. He has worked in multiple mental health hospitals and healthcare facilities since 2015. He received his master's and doctoral de­grees from Walden University.

Many adults come to therapy wondering, "What's wrong with me?" I believe a more helpful question is, "What has shaped my experience, and what makes sense about the way I think, feel, and respond?" Lasting change begins with understanding yourself—not fixing yourself.

I have a special passion for working with neurodivergent adults, including those with ADHD, autism, and AuDHD, as well as adults navigating anxiety, trauma, life transitions, and emotional overwhelm. Whether you've spent years masking, feeling misunderstood, or believing you simply needed to "try harder," therapy can be a place to better understand yourself with curiosity and compassion instead of self-criticism.

I earned my Master of Science in Professional Counseling from Grand Canyon University and bring over 10 years of clinical experience supporting adults with a wide range of mental health challenges, including serious mental illness (SMI), trauma, anxiety, and depression. These experiences have strengthened my belief that healing happens in relationships where people feel genuinely seen, respected, and accepted without judgment.

My goal is to help you understand how your mind, emotions, nervous system, and experiences shape the way you move through the world so we can build practical strategies that fit your life—not someone else's expectations. I believe therapy isn't about becoming a different person; it's about understanding yourself more deeply so you can live more authentically, navigate life's challenges with greater confidence, and create meaningful, lasting change.