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Dena Lampert LCSW, CASAC, A-CbT 

My Story

 

Growing up, I never imagined I would become a therapist.

After graduating from business school, I realized my true passion

was providing direct support to people who were suffering and

better understanding how thoughts and feelings shape our

choices. This insight led me to pursue a Master’s degree from

Columbia University School of Social Work.​​​​​​​​​​​​​​​​

 

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The Foundation of My Career

 

I began my career in the field of addiction treatment, initially working with

homeless adults struggling with substance use, and achieving CASAC

(Credentialed Alcohol and Substance Abuse Counselor) status at that time.

Over the next 14 years, I served as a therapist, supervisor, and administrator

in an agency who primarily served adolescents and families struggling with

chemical dependency in Long Island.

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Private Practice & Specialty Training​

 

In 2011, I founded a solo private practice in Rockville Centre, New York, focusing on providing mental health and relationship support to teens, young adults, adults, couples, and families. 

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As the practice grew, I pursued specialized training in Cognitive-Behavioral Therapy (CBT), achieving Diplomate status from the Academy of Cognitive and Behavioral Therapies. This evidence-based approach is the foundation for effectively treating a wide range of mental health conditions.​​

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Evolving into Triangle Cognitive Therapy​

 

In 2018, I transitioned the solo practice into Triangle Cognitive Therapy, a group practice founded on the belief that “two heads are better than one” for expanding the scope and access to care. 

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Today, my primary role is leading and directing a multidisciplinary team of highly skilled clinicians. I oversee operations across our two physical locations in Rockville Centre and Westbury, and our virtual services, ensuring we maintain our commitment to delivering high-quality, evidence-based CBT to children, adolescents, and adults.

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Making Quality Mental Health Care Accessible 

 

As an insurance-based practice, we are specifically designed to provide highly accessible mental health care to our community, offering full support with intake, billing, and insurance to streamline the treatment process.

 

I am driven by the belief that accessible, high-quality care is essential for personal growth and community well-being. My vision for Triangle Cognitive Therapy is to be a leading resource dedicated to empowering individuals with the practical tools of CBT to effectively alleviate the burdens of mental distress and illness. My team and I are dedicated to making this vision a reality for every person who seeks our support.

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Want to Join my Team?

 

I am always looking for dedicated clinicians to join my team. Learn more about employment at Triangle Cognitive Therapy.  

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New Clients: Contact us here or call

(516) 614-5334

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For all other inquiries please call

(516) 208-3792

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Rockville Centre

119 N Park Ave #306,

Rockville Centre, NY 11570 

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Westbury

400 Post Ave, Suite 100,

Westbury, NY 11590

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©2026 by Triangle Cognitive Therapy. 

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