Find a psychiatrist in Stony Brook, NY — covered by insurance

Danielle Overton-Miller, PMHNP-BC, is a board-certified Psychiatric Mental Health Nurse Practitioner dedicated to providing compassionate, evidence-based psychiatric care through a collaborative and patient-centered approach. She believes in creating a supportive, judgment-free environment where patients feel heard, respected, and empowered throughout their mental health journey.

Danielle specializes in the evaluation, diagnosis, and medication management of ADHD, anxiety disorders, depression, bipolar disorder, mood disorders, insomnia, and other common psychiatric conditions. She develops individualized treatment plans tailored to each patient’s unique goals, lifestyle, and needs while incorporating the latest evidence-based practices.

She provides virtual psychiatric care for adults throughout New York and Connecticut, making high-quality mental health care convenient and accessible. Danielle earned her Master of Science in Psychiatric Mental Health Nursing from D’Youville University and is committed to helping patients achieve lasting wellness and improved quality of life.

Welcome! I’m Roberta Giorgi, a Board-Certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) dedicated to helping individuals navigate life’s challenges and achieve emotional wellness through personalized, current evidence-based mental health care.

With over 20 years of experience in the mental health field, I bring a unique and deeply rooted perspective to patient care—combining clinical excellence with firsthand experience across hospital systems, addiction recovery, and community-based mental health. As a PMHNP-BC and past Advanced Credentialed Alcoholism and Substance Abuse Counselor (Adv-CASAC), I specialize in helping clients overcome emotional and behavioral challenges.

My background includes currently delivering direct inpatient psychiatric care in hospital settings, managing acute mental health crises, and coordinating care for individuals with complex psychiatric and medical needs. I’ve worked extensively with: all Substance Use Disorders (Alcohol, Heroin, Benzodiazepines, Cocaine/Crack Cocaine, Ecstasy, Mushrooms, Methamphetamines, Cannabis/K2, Nicotine/Vape, etc.) and provide Medication-Assisted Treatment: Naltrexone, Suboxone, Sublocade, etc.

I specialize in tailoring psychotropic medications to treat psychological disorders including Bipolar, Schizophrenia, Borderline Personality Disorder, ADHD, Mood Disorders, Anxiety, Depression, PTSD, Anger Management, Impulse Control Disorder, Eating Disorders, Sleep Disorder/Insomnia, Grief Therapy, Work/Stress Balance Support and Intergenerational Acculturation Trauma and tailoring Behavioral Interventions for children, teens, LGBTQ+, adults, couples and families.

I am a board-certified Psychiatric Mental Health Nurse Practitioner with over 14 years of nursing experience, caring for individuals from diverse backgrounds across healthcare and community settings.

My clinical background includes approximately one year working with men experiencing homelessness, where I conducted psychiatric evaluations to identify diagnosed and previously unrecognized mental health conditions that could affect employment, housing stability, and daily functioning. This experience strengthened my understanding of how mental health, life circumstances, and social challenges can impact overall well-being.

I also have extensive experience in postpartum and maternal health, giving me a unique understanding of perinatal and postpartum mental health concerns. While this remains a special area of interest, I provide psychiatric care to adults with a wide range of mental health needs, including depression, anxiety, mood disorders, ADHD, trauma-related concerns, and sleep difficulties.

At NurtureNest Behavioral Health, I provide comprehensive psychiatric evaluations, personalized medication management, and supportive therapy using a compassionate, evidence-based approach. My goal is to create a safe, judgment-free environment where you feel heard, understood, and supported as we work together toward greater emotional well-being and an improved quality of life.

I utilize an evidenced-based holistic approach with the patient's concerns being front and center. If medications are to be used, then it is priority to ensure that the most benefit is provided, with the least amount of medication onboard. The most important tool a provider can use is simply listening. We are all seeking that "better space for mental well being, and I strive in helping people move closer on this journey.

I am a dual certified provider with over 17 years of prescribing experience. My primary care background allows me to carefully consider co-existing conditions in managing your care. Maybe you cannot see a way forward because you are not feeling your best. My goal is to help facilitate treatment to help you improve your mood and provide symptom relief.

I also have same-day appointments that work within your schedule to make mental health care easy and accessible.

Reaching out for support is one of the bravest things you can do — and I'm honored to be part of your journey. I work with individuals living with anxiety, chronic illness and pain, and substance use and addiction. I believe every person carries their own resilience, and my role is to help you access it. My practice is built on trust, warmth, and a deep commitment to your growth. I show up for my clients with honesty and the genuine conviction that meaningful change is always within reach