Kayla Garcia, LMHC

Dr. David Guggenheim is an experienced clinical psychologist and health care administrator. He has worked with patients at different stages of life, including children, adolescents, and adults, and he has treated patients living with a wide range of mental health conditions, including anxiety, depression, post-traumatic stress disorder (PTSD), substance use, and attention-deficit hyperactivity disorder. Dr. Guggenheim has specific training in Trauma-Focused Cognitive Behavioral Therapy, Motivational Interviewing, and foundational training in dialectical behavioral therapy. Prior to joining Talkiatry, Dr. Guggenheim served as the Chief Behavioral Health Officer at Callen-Lorde Community Health Center in New York City, specializing in LGBTQ+ health care. In that role, he oversaw teams of providers including psychiatrists, psychologists, and social workers, who collectively provided care to thousands of patients in the New York metropolitan area. While at Callen-Lorde, he also served as co-chair for the behavioral health subcommittee of the Community Health Center Association of New York State; worked as an Adjunct Professor at Post University; and performed volunteer clinical work at the Weill Cornell Center for Human Rights. Before joining Callen-Lorde, Dr. Guggenheim worked as Associate Chief Behavioral Health Officer at Community Health Center, Inc., a federally qualified health center in Connecticut. A recognized expert, Dr. Guggenheim has delivered lectures to audiences ranging from medical schools to corporate executives, and he has been quoted in national media including The Advocate, Yahoo Finance, and Teen Vogue. Dr. Guggenheim has also been honored with an Early Career Achievement Award from the American Psychological Association in 2016. Dr. Guggenheim received his Bachelor of Arts from the University of Connecticut in 2002 and his Doctor of Psychology in Clinical Psychology from the American School of Professional Psychology at Argosy University/Washington, DC in 2009.

Seth Sultan, LCSW, earned his Master of Social Work degree from California State University, Northridge. He is a practitioner of Somatic Experiencing; a psychobiological treatment focused on resolving trauma and stress. Seth also has specialized training in Exposure and Response Prevention (ERP) for the treatment of OCD. He integrates these modalities with Cognitive Behavioral Therapy (CBT), Mindfulness, and Attachment Theory to provide a holistic and individualized therapeutic experience.

Seth believes therapy is a space where individuals should feel heard, seen, and understood. He offers a supportive and nonjudgmental environment that encourages self-discovery and personal growth. His goal is to help clients move toward their best selves while building stronger, healthier relationships.

Seth utilizes a collaborative and compassionate approach, empowering clients to challenge old patterns and create meaningful change. He strives to establish a sense of safety within the therapeutic relationship, exploring emotional, physical, cognitive, and spiritual dimensions to help each person live a more authentic and fulfilling life.

Brittany Stef is a Licensed Mental Health Counselor (LMHC) in New York and a National Certified Counselor (NCC). With extensive experience in education and various clinical settings, she has supported individuals and families of all ages in overcoming diverse mental health challenges, including depression, anxiety, mood disorders, self-esteem issues,   and significant life changes.

Brittany is passionate about therapy and employs empowerment-driven, holistic approaches. Her techniques include Cognitive Behavioral Therapy (CBT), Dialectical Behavioral Therapy (DBT), Motivational Interviewing, Solution-Focused Therapy, and Person-Centered Therapy.

Ariella Rodriguez, LCSW, has been practicing since 2013 after earning her Master’s in Social Work from New York University. She has experience supporting individuals with stress, anxiety, family conflicts, parenting issues, and interpersonal relationships. Ariella has worked in diverse settings including a mental health clinic, an outpatient hospital program, and a nonprofit specializing in parent-child psychotherapy. She has treated a wide range of conditions including PTSD, depression, anxiety, eating disorders, and bipolar disorders.

Ariella believes you are the expert of your own story. She takes an empowering, hands-on approach that highlights your strengths, helping you break down barriers and move toward a life that feels whole, healed, and fulfilling. Her goal is to leave you feeling encouraged and motivated to achieve meaningful change.

Ariella starts by building a safe, trusting space where vulnerability and personal growth can take root. She avoids a one-size-fits-all approach, instead developing customized goals and strategies based on your specific needs. Being seen, heard, and understood is central to her practice. She meets you where you are and supports you in moving toward healing and growth.

Scott Tuckman is a Licensed Mental Health Counselor who arrives with a robust set of backgrounds across several fields of interest, with immersion among numerous cultures and diverse ways of life. He has worked in multiple capacities in a variety of settings around the U.S., ranging from correctional to educational to inner-city community-based to corporate. With an eye on what influences the ever-present connections between body and mind and emotional states, Scott works well with those struggling with mood disorders, depression, a range of anxiety disorders, relationship problems, esteem issues, adjustment concerns, emotional dysregulation, and more. While Scott is psychodynamically oriented, he blends attachment theory application, mindfulness, selections from CBT and DBT modalities, or other treatment mechanisms tailored to meet each client's needs and complement any assigned psychopharmacological undertaking. Considering it an honor to join someone on their journey, he takes a direct yet compassionate approach so as to establish a comfortable co-owned therapeutic relationship. Ultimately, he strives to help clients gain a more comprehensive understanding of how they can move themselves forward and collaboratively develop the readiness to step towards it. When goals have been met and it's time to finally part ways, Scott hopes each client's tool belt is fortified with newly acquired techniques to overcome the inevitable obstacles on the road ahead.

Mr. Hogate is a skilled therapist with over 25 years of experience providing psychotherapy in a broad range of clinical settings. He is licensed both as a Clinical Social Worker and a Professional Counselor. Mr. Hogate has provided private counseling services since 2001 and additionally has worked in a vast range of clinical settings including outpatient counseling for individuals and families, inpatient services for children and adults, outpatient treatment for individuals with co-occurring substance use and other behavioral health concerns. Mr. Hogate is driven by a deep belief in the centrality of human relationships and the benefits clients can gain from a deep connection with a skilled clinician.

Mr. Hogate has a balanced and informed perspective on therapy and seeks to draw from patient experience and strength in partnership toward a common goal of reducing stress and symptoms of various life challenges such as depression, anxiety, relationship conflict, life transitions and others. His clinical perspective is practical and informed by various clinical orientations, yet unique to each individual. Mr. Hogate is collaborative and integrative in his approach to therapy and seeks to build connections with client’s medical providers or others to enhance clinical outcomes.

Typically, Mr. Hogate starts work with clients as a conversation in the context of an enduring interest and belief in the capacity of individuals to make meaningful changes in their lives. Interventions are an important aspect of Mr. Hogate’s clinical work, often rooted in CBT, Narrative Therapy, Systems Theory, ACT and elements of Positive Psychology. Mr. Hogate approaches clients from a biological, psychological and sociological perspective seeking to understand individuals from each of these domains.

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