Nikki Gustavson, Psy.D., Psychologist in Melville, New York

At LifeStance Health in New York, Nikki Gustavson, PsyD, helps individuals and families build resilience, improve emotional well-being, and navigate life’s challenges with confidence. She provides compassionate, evidence-based mental health care to children, adolescents, teens, and adults across New York, offering support for concerns such as anxiety, ADHD, and trauma. Her approach emphasizes practical skill-building, insight, and collaboration, helping clients achieve meaningful and lasting change. Dr. Gustavson is especially skilled in working with individuals facing complex transitions and stressors, including those managing developmental differences, life changes, and relational challenges. She works with diverse populations, including individuals with autism spectrum disorders, members of the LGBTQ+ community, and military/veterans, while also offering additional areas of expertise. Her services include individual therapy, couples counseling, family therapy, and psychological testing to support accurate diagnosis and personalized care. A core area of Dr. Gustavson’s passion is supporting individuals who have been recently discharged from a psychiatric hospital. She understands the unique challenges of this transition period and provides structured, supportive care to reduce relapse risk, strengthen coping strategies, and promote stability. Through therapies such as Cognitive Behavioral Therapy (CBT), Acceptance and Commitment Therapy (ACT), and Dialectical Behavior Therapy (DBT), she helps clients regain a sense of control and move forward with confidence. Dr. Gustavson earned her education from the State University of New York at Buffalo, Fordham University, and Hofstra University, and has been practicing since 2009.