How we stand out
What truly sets Hamilton Psychotherapy apart is the combination of deep clinical expertise and a genuine, human-centered approach. Together our clinicians have more than 20 years of experience, our practice offers a depth of understanding in grief, loss, and trauma that allows us to meet clients with skill and empathy at life’s most difficult moments.
We take pride in providing personalized care—not a one-size-fits-all model—tailoring therapy to each person’s unique story and goals. Our therapists practice within their specific areas of competence to ensure every client receives the most ethical, effective support possible.
As LGBTQIA++ allies, we are intentional about creating an inclusive, affirming space where every individual feels safe, respected, and valued. Clients often tell us they feel truly “met” here—supported not just as patients, but as whole people navigating life, growth, and change.
At Hamilton Psychotherapy, our difference is simple: we walk beside you with authenticity, compassion, and a belief in your capacity to heal and thrive.
Our team
Dianne Galasso, LCSW, CAGCS
Owner, Clinical Supervisor, Therapist
Dianne Galasso is a Licensed Clinical Social Worker who received her graduate degree from Fordham University. Dianne provides individual and group therapy for teens, young adults, adults, and older adults.
Dianne’s approach is warm, authentic, and adaptable, meeting each person where they are. She draws on a variety of perspectives to support growth and understanding, including psychodynamic and relational approaches, as well as techniques that focus on connection, strengths, and personal resilience. When helpful, she also weaves in practical tools from CBT, DBT, and mindfulness to help clients navigate life’s challenges.
She works with clients navigating grief and loss, anxiety, depression, caregiving stress, life transitions, women’s issues, and ADHD.
Dianne is licensed in NY and NJ.
Melissa Brierley, LCSW
Clinical Supervisor & Therapist
Melissa Brierley is a Licensed Clinical Social Worker who received her graduate degree from Columbia University. Melissa completed post graduate training with NYU in the areas of Advanced Assessment and Diagnosis, and Trauma Informed Clinical Practice. Melissa is a certified AF-EMDR specialist where she completed all training of Parts I, II, & III with the Parnell Institute.
Melissa specializes in the treatment of complex trauma, anxiety, depression, relational issues and life transitions. Melissa’s therapy style is holistic, trauma informed and strengths based.
Melissa’s sessions are interactive, collaborative, and client-centered. Her approach to treatment is tailored to suit each individual’s needs and she utilizes a variety of evidence-based practices including, Psychodynamic theory, AF-EMDR, Dialectical Behavioral Therapy (DBT), Cognitive Behavioral Therapy (CBT), Motivational Interviewing (MI) and Mindfulness.
Melissa is licensed in NY.
What people are saying
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Dianne is compassionate & patient with her clients, and she builds strong therapeutic relationships with her clients. Dianne's strengths-based approach helps clients to feel safe & heard, so that clients can address challenging experiences & emotions.
Lauren Ricciardi
LCSW Group Practice Owner & Therapist -
I have been seeking therapy and working with different therapists over the past decade. I share this because it has provided me with some perspective on what therapy could look like. I was looking for a therapist where I could be 100% myself. I also wanted a therapist who would be real with me and not hesitate to hold a mirror to when necessary. What I value most about Dianne is that she is so real. She is approachable, warm, compassionate, funny, and deeply invested in her clients. I can say she has been right by my side through the hardest days of my life, and I would not have it any other way. She is one of those human beings who has been brought to this earth to do this work. I am merely grateful to be a recipient of her generative energy. By the end of each session, I feel lighter and a little more at home in my body and mind.
MP
Queens, New York -
Besides being kind, clinically competent, and compassionate, Dianne has a unique ability to connect with her patients and help them thrive. Her perseverance to achieve her professional goals and work through personal issues makes her private practice grounded in experience and wisdom. If you are ready to do your inner work, Dianne will be your perceptive guide.
Kathryn Kaplan, PhD, CT
Grief Support Specialilst