Meet The Team

As seen on a Sussex Directories Inc site

Marcos A. Quiñones

Clinical Director

Marcos A. Quinones, LCSW, is the founder/owner and Clinical Director of FiDi Therapy in New York City, a group psychotherapy practice focusing on anxiety, relationships, and sex therapy. He is a sex therapist with 18 years of experience helping individuals and couples improve their sexual health and relationships. Marcos obtained his Master’s degree in social work from New York University and a Master’s in neuroscience from Columbia University. Marcos completed his sex therapy training at The University of Michigan.

With a compassionate and non-judgmental approach, Marcos helps his clients explore and overcome sexual concerns such as low libido, sexual dysfunction, mismatched desires, communication problems, and more. In addition, Marcos utilizes various evidence-based techniques and strategies such as cognitive-behavioral therapy, mindfulness, and sensate focus exercises to help his clients achieve their goals.

In addition to the group practice, Marcos has lectured at various universities and workshops on relationship-related topics. He is a member of the American Association of Sexuality Educators, Counselors, and Therapists (AASECT) and adheres to their Code of Ethics.


Tyvon Foster


Tyvon attended Adelphi University where he received his undergraduate and graduate degree in clinical social work. Tyvon has also earned a certification as an Anger Management Specialist and is a nationally recognized member in America and Canada. In addition, Tyvon is certified in Rational Emotive and Cognitive Behavioral Therapy.

After graduating, Tyvon has worked in diverse settings including preventive services, school based agencies, and education. His professional background also includes working with diverse populations such as Hispanic, Muslim, African, adolescences, adults, couples, and families. Tyvon has experience in treating clinical depression, family/relationship issues, sexual abuse, anxiety, anger, self-esteem, PTSD, and psychological trauma to name a few.

Tyvon’s clinical interest include treating personality disorders. Tyvon has an eclectic therapeutic style that includes individual and group client-centered, cognitive behavioral, strength-based, and solution-focused. Tyvon believes that the root of all successful outcomes in therapy derives from establishing a safe and trusting relationship with his clients.


Sofia Muñoz


Hi! I’m Sofia Muñoz, psychotherapist, I help people process and cope with their interpersonal and intrapersonal issues, which subsequently makes way for constructive growth and change. I use evidence-based theory to help guide my understanding of my clients’ symptomologies and how to address the problems that arise from them. My aim is to create a warm, safe and supportive environment where we can discuss your stressors, triggers, emotions and goals. Together, we will use your unique strengths as a catalyst to develop insight and change in your lifestyle and perspective. I will provide education, support, skills, and coping strategies that will inevitably help you grow, achieve/support your goals, calm your mind, establish connectivity in your relationships, and allow you to feel lighter and more fulfilled.

I received my Masters from Ferkauf Graduate School of Psychology, Yeshiva University where I focused my training on Mental Health Counseling. I am a MHC-LP with experience supporting individuals and families with anxiety, depression, stress management, trauma and relationship concerns in English and in Spanish.


Soo Ngai


Hello, I’m Soo. Welcome to Fidi Therapy. I am a psychotherapist who uses a supportive and goal-oriented approach to help steer you toward the life that you deserve.

What I do: I help you achieve your vision of a thriving and fulfilling life after identifying and clarifying your individual
goals and taking committed action. While this is a process, I can help you navigate the journey by providing an empathic, supportive, and non-judgmental space. If you are experiencing Anxiety, Depression, Life Transitions, Social Anxiety, Work stress, and Relationship issues, you are at the right place.

What to expect: The process is like learning to drive. As long as you’re committed to the program and want to sit in the driver’s seat, I guarantee a patient and willing instructor by your side. My approach is unique, and I’m confident you’ll see progress soon.  My first career was in the fashion industry. This experience helped me to understand and connect with clients who are experiencing work/life challenges.

Modalities: Dialectical Behavioral Therapy, Cognitive Behavioral Therapy, Acceptance and Commitment Therapy, and Solution-Focused Therapy.

We have been conducting video therapy for over 10 years, and now with the current health care, we are the company to turn to for video and phone therapy and coaching.


Mary Ruth Govindavari


Mary Ruth approaches therapy with cultural humility and a trauma-informed lens. She understands that trauma affects individuals on all levels – familial, societal, ancestral. Therefore, she believes her role with clients is to guide them in healing deep wounds and awakening to their own inner wisdom and strength.

Mary Ruth is a body-oriented therapist, who understands the mind, body, and soul connection. Her style is compassionate, interactive, and relational and she often incorporates mindfulness techniques into her sessions. Mary Ruth is currently enrolled in a somatic psychotherapy program to deepen her somatic techniques.

Mary Ruth has experience helping people navigate grief/loss, self-esteem issues, life transitions, relationship issues, and family dynamics. She currently services individuals and couples and provides sessions virtually.


La Chanda Marcelle Moor

licensed Master Social Worker

La Chanda Marcelle Moor is a licensed master social worker committed to helping women learn how to balance the many demands of their social roles. She obtained her BSW from York College (CUNY) and MSW from Columbia University School of Social Work. Her therapeutic process targets ineffective behaviors, habits, and beliefs that prohibit women from living the life they want to live. La Chanda believes in building therapeutic alliances where the client is in control of their choices.

Before joining FidiTherapy, La Chanda spent seven years as a Constituent Affairs Liaison. Her work was centered around walking clients through crises and connecting them with the necessary resources. Many of the individuals she worked with were women struggling to balance several social roles. This experience motivates her to want to work with women in a therapeutic setting. Under the guidance of Marcos A. Quinones, LCSW— La Chanda practices Acceptance, Commitment Therapy (ACT).

Darlene Duran


I believe we have the extraordinary ability to grow, heal and create the lives we want when we are provided with a safe and supportive space.  I help you uncover that ability using evidence-based therapies (CBT and ACT) to guide your journey.  I place the utmost importance on building trust and helping you feel unconditionally supported and understood throughout the process.

My sessions are collaborative and tailored to your unique goals and life challenges.  We work together to clarify your personal values, strengths and motivators.  I support you with the education, skills and strategies that are right for your situation.  As a team, we develop a better understanding of your thoughts and emotions as well as the best path for getting you where you want to go.

I am an MHC-LP that helps children, adults, and couples dealing with anxiety, depression, parenting issues, life transitions, relationship stress, and interpersonal issues.  Call me for more information.

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