About Margarita Cossuto, PhD

As a licensed clinical psychologist with nearly 20 years of combined experience in lifespan development and clinical practice, I am dedicated to helping adolescents and adults navigate mental health challenges with compassion, expertise, and evidence-based care.

I specialize in insomnia and sleep-related concerns, anxiety, OCD and related disorders (including hoarding disorder), ADHD, chronic pain, and adjustment to medical diagnoses. I also support individuals managing oncology-related concerns and digestive health conditions. Taking a holistic approach, I emphasize the mind-body connection to help clients manage stress, enhance overall well-being, and implement meaningful lifestyle changes.

Whether facing persistent worry, disrupted sleep, or major life transitions, I provide tailored treatment to meet each client's unique needs. As a bilingual therapist fluent in Spanish, I strive to create a culturally responsive and welcoming space where individuals from diverse backgrounds feel supported and understood in their mental health journey.

My approach is rooted in evidence-based therapies, including Cognitive Behavioral Therapy (CBT), Acceptance and Commitment Therapy (ACT), and Dialectical Behavior Therapy (DBT). With extensive experience in behavioral medicine, psychological assessment, and outpatient care, I provide practical, results-oriented treatment tailored to each client’s needs.

I have worked in diverse clinical settings, including Geisinger Medical Center, Yale-New Haven Hospital, and private group practices. In addition to therapy, I offer comprehensive psychological and ADHD assessments to help individuals gain clarity about their mental health and cognitive functioning.

My academic background includes a doctorate in Applied Developmental Psychology from Fordham University, with specialized training in Clinical Psychology at Fielding Graduate University.