Dennis Valerstain, MD

Dr. Kimberly Williams is a Licensed Clinical Mental Health Counselor, with more than 17 years of experience in the mental health field. She holds a master's degree in mental health counseling and a doctoral degree in mental health supervision and education. Her professional experience includes working with populations of diverse demographics, varying circumstances, an array of mental health conditions and challenges, and many other unique living experiences of individuals, families, and couples. Dr. Williams has worked extensively with many presenting issues including diagnoses related to mood disorders, bipolar disorders, anxiety disorders, psychoses, spectrum disorders, trauma and other challenging life changes. In order to provide culturally informed care and meet clients where they are, Dr. Williams has worked with people in many environments, including but not limited to personal homes or shelters, community settings, medical facilities, outpatient settings, and inpatient settings. Dr. Williams embraces humanistic and psychodynamic approaches to help clients acclimate to the counseling space and find the courage to explore, integrate and nurture one's true self throughout the counseling process. Additionally, Dr. Williams utilizes elements of Cognitive and Behavioral Therapies, Solution Focused Brief Therapy, and Systemic and Multicultural Therapies, to help clients further their growth and achieve success toward therapeutic goals.

Dr. Alicia Garcete is a board-certified child, adolescent, and adult psychiatrist in practice for over 12 years. Her practice focuses on medication management, recognizing  family involvement is extremely important and is an integral part of treatment. Dr Garcete has treated a wide variety of patients. Her primary focus is treating depression, anxiety disorders, ADHD, PTSD and OCD. Additionally, she can provide supportive therapy and elements of cognitive-behavioral therapy but on occasions more therapy support may be needed, and the recommendation to bring a psychotherapist on the care team may occur to provide an optimal outcome. Dr. Garcete is bilingual and provides care in both Spanish and English.

Prior to Talkiatry, Dr Garcete treated children, adolescents, and adults was at the intensive outpatient and partial hospitalization levels of care with focus on behavioral approaches in the Depression recovery and Anxiety/OCD programs.

Dr. Garcete earned her Medical Degree from the Universidad Nacional de Asuncion, Facultad de Ciencias Medicas in Paraguay. She completed her general psychiatrist residency at Maimonides Medical Center in New York. She was also a Fellow in Psychoanalysis at the Psychoanalytic Institute, Affiliate to New York University School of Medicine, and completed her child and adolescent psychiatrist fellowship at Elmhurst Hospital Center, affiliate to Mount Sinai Hospital. Dr. Garcete also held a clinical assistant professor appointment from the department of psychiatry at SUNY Downstate Medical Center.

Pamella Bess-Tabb is a Licensed Clinical Social Worker (LCSW, LICSW) and Certified Advanced Social Work Case Manager (C-ASWCM) with nearly a decade of experience across behavioral health, medical, educational, and community settings. She has supported adults and children navigating ADHD, anxiety, depression, and life transitions, using a practical, trauma-informed approach that emphasizes real-world tools and growth.

Pamella takes a collaborative, down-to-earth approach. She values authenticity, respect, and tailoring care to each person’s needs. Patients can expect a supportive partner who meets them where they are, helping them feel heard, understood, and empowered.

Her methodology blends CBT, Motivational Interviewing, and Mindfulness. Pamella focuses on executive functioning, coping strategies, and practical habits that reduce overwhelm. Through therapy and case management, she helps patients build skills that lead to sustainable change and greater confidence in managing life’s challenges.

Dr. Shafi completed his undergraduate studies in biology at the University of Nevada Las Vegas. He then earned his medical degree from Touro University Nevada College of Osteopathic Medicine. He went on to complete his psychiatry residency at the Kirk Kerkorian School of Medicine at UNLV, where he was awarded “Master of the PRITE” for achieving the highest score on the Psychiatry Resident In-Training Examination.

Dr. Shafi specializes in the treatment of various psychiatric conditions including anxiety, depression, bipolar disorder, ADHD, and PTSD. He has practiced in multiple settings including inpatient psychiatric facilities, outpatient mental health clinics, and the VA system.  

Dr. Shafi primarily focuses on medication management in conjunction with supportive psychotherapy. Using a collaborative and patient-centered approach, he provides personalized care by tailoring treatment to his patients’ unique needs. Dr. Shafi’s curiosity and compassionate nature allow him to connect with patients from all walks of life. He is committed to creating a supportive environment where patients feel comfortable expressing their mental health concerns.

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Jessica Vassallo is a Licensed Clinical Social Worker with extensive experience in the area of mental health. She has worked with patients of various demographics including World Trade Center responders, college students, patients with severe and persistent mental illness, dually diagnosed patients, patients who have or have had cancer, and patients with impoverished backgrounds. She received her Master's Degree at Adelphi University in 2003, became certified that year and received her license in clinical social work in 2008. Jessica has been practicing in social work for 20 years, focusing on anxiety, depression, and PTSD. She uses an eclectic approach in therapy with a foundation in Cognitive Behavioral Therapy, Acceptance and Commitment Therapy, mindfulness therapy, and supportive psychotherapy. She develops an individualized treatment plan for all patients to focus on their goals. She believes that the person is impacted by all the larger systems they are in (family, workplace, community, larger society) and is committed to providing a non-judgmental, warm, and empathetic space to help clients feel understood and comfortable exploring the roots of their issues.

Whitney Cohen obtained her undergraduate degree from Monmouth University where she studied Psychology and Health Studies. Whitney earned her Master's degree in Clinical Social Work from New York University, where she gained a solid foundation in evidence-based practices and therapeutic techniques. She is also a licensed clinical supervisor which has allowed her to train and mentor other aspiring social workers in the field as well as nurse practitioners and other mental health professionals. ‍Whitney has worked in a variety of settings, including education, correctional facilities, substance abuse/outpatient programs, and private practice. Her diverse experiences have equipped her with a comprehensive understanding of the complexities that individuals face daily. Whitney has worked with clients of all ages, from children, adolescents, adults, the elderly, and has a special passion for working with couples and families. She specializes in treating a variety of mental health issues, including anxiety, ADHD, stress, family/relational problems, trauma and school avoidance.‍In her practice, Whitney utilizes a scope of therapeutic approaches, CBT, DBT, and Motivational Interviewing. These evidence-based techniques allow her to tailor interventions to meet the unique needs of each client, helping them achieve their goals and overcome obstacles.