Obsessive-compulsive disorder therapists & psychiatrists in Tucson, AZ

I'm Rachael Colley, a Psychiatric Mental Health Nurse Practitioner focused on psychiatric medication management with a practical, skills-based approach. My path ran through teaching and nursing before prescribing, so explaining things in plain language comes naturally, and I care about what works in your real life, not just what looks good on paper.

Who I work with I see adults, teens, and children, with particular depth in ADHD, anxiety, depression, mood disorders, perinatal and postpartum mental health, and binge eating disorder. I provide neurodiversity-affirming care and have a strong interest in supporting people navigating a late diagnosis, both the relief of finally having answers and the practical work of figuring out what comes next.

I offer early morning, evening, and weekend appointments across Arizona.

Hello and welcome! my name is Darren Nguyen (Duy), I'm currently only taking new clients for individual therapy, not couple and family therapy. I'm a Licensed Professional Counselor dedicated to helping individuals navigate life’s challenges and achieve meaningful growth. I earned my Master’s degree in Counseling with an emphasis on Mental Health Counseling from the University of Arizona and have experience working in a community mental health clinic, supporting individuals facing a range of emotional and psychological struggles. Growing up in two different cultures, I understand how cultural influences shape identity, values, and personal experiences, allowing me to provide culturally responsive care that acknowledges the intersection of mental health and cultural background. I specialize in treating anxiety, depression, trauma, borderline personality disorder, and attachment-related concerns using a person-centered, strength-based, and trauma-informed approach. Integrating evidence-based modalities such as ACT, CBT, DBT, PRT and somatic therapy, I help clients cultivate resilience, self-awareness, and lasting change. My goal is to create a safe, collaborative space where clients feel heard, understood, and empowered to explore their emotions, challenge unhelpful patterns, and build a life aligned with their values. Whether you're struggling with past trauma, self-doubt, or emotional distress, I am here to provide compassionate guidance and effective therapeutic strategies tailored to your unique journey.

I work with neurodivergent individuals in Tucson, including those with autism, ADHD, anxiety, OCD, PTSD, and social challenges. My ideal clients are children (8-17) and adults navigating burnout, overwhelm, social expectations, or life transitions who want support that actually fits how their brain works. I help you build practical coping tools, increase self-understanding, and reduce stress in a way that feels sustainable. Together, we create strategies that honor your strengths, improve daily functioning, and support meaningful progress without masking who you are.

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.

With a passion for psychology at an early age, I obtained a degree in Psychology prior to pursuing a career in Nursing. It is my honor to help patients achieve the life they envision.

I’m a Board-Certified Psychiatric Mental Health Nurse Practitioner with a background in emergency nursing, where I developed strong skills in crisis support, trauma-informed care, and compassionate communication. I earned my Bachelor of Science in Nursing from the University of Louisville and my Master of Science in Nursing from the University of South Alabama in 2025. My training includes inpatient and outpatient psychiatric settings, providing care across the lifespan. I have a special interest in working with adolescents and adults navigating anxiety, depression, ADHD, OCD, and trauma-related concerns. My goal is to create a supportive, nonjudgmental space where clients feel heard and empowered.

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