Maryanne Garnsey, LMFT

Abigail Skinner, LCSW, is a licensed clinical social worker with over five years of psychotherapy, behavioral health integration, and program leadership experience in medical and community-based settings. She earned her Master of Social Work degree from Touro College and completed Seminar in Field Instruction (SIFI) at Columbia University. Abigail has specialized training in LGBTQ+ mental healthcare through Callen-Lorde Community Health Center, post-graduate training in relational psychoanalysis from The Stephen Mitchell Institute of Relational Studies, and advanced certification as a Behavioral Health Integration Specialist.

Abigail’s style is thoughtful and relational, emphasizing curiosity, trust, and authenticity. She believes each person’s story matters and works collaboratively to understand patterns, relationships, and strengths that can foster lasting change. Patients can expect a warm, supportive environment that balances compassion with structure—helping individuals explore challenges, identify meaningful goals, build self-awareness, and develop skills that support long-term emotional well-being.

Abigail begins treatment by building a strong, collaborative therapeutic relationship grounded in respect and trust. During initial sessions, she takes time to understand each patient’s history, concerns, and goals, then develops a personalized treatment plan tailored to their unique values and needs. She integrates evidence-based practices with a relational, trauma-informed approach, using behavioral health strategies, psychoeducation, and supportive interventions. Abigail emphasizes open communication, regular check-ins, and ongoing review of progress to ensure care remains adaptive, collaborative, and effective.

Huong "Claire" Phan is a licensed mental health counselor at the New York State Education Department Office of the Professions and a licensed professional counselor at the Texas State Board of Examiners of Professional Counselors. Claire completed her Master's in Mental Health Counseling at Brooklyn College, City University of New York. Claire has been practicing for 5 years as a licensed therapist providing counseling for mood disorders, obsessive compulsive disorder, prolonged grief disorder, adjustment disorders, women's issues, and also helping clients navigate relationship difficulties and other challenges. Claire completed her clinical internship and worked as a therapist at the Institute for Human Identity, one of the first psychotherapy centers in New York to provide LGBTQ+ affirmative psychotherapy. Claire is passionate about serving the LGBTQ+ community and providing a safe space for her clients regardless of differences in gender identity, expression, sexual orientation, race, and culture. Claire practices with a holistic approach that incorporates cognitive behavioral, dialectical behavioral, and mindfulness-based therapy techniques to help clients gain awareness, practice acceptance, and foster resiliency. Each of these therapy modalities requires active participation from the client to connect mind with body, intent with action so that healthier patterns can emerge.

Monique Randle, LCSW, has been a licensed mental health therapist since 2009. She earned her Master of Social Work from the University of Arkansas at Little Rock and holds a certification in sex therapy from the Sexual Health Alliance. Monique has training in trauma and couples therapy, including EMDR, TFCBT, PACT, Gottman, Prepare/Enrich, and SYMBIS. She has experience in outpatient and private practice settings, as well as supervising MSW interns and LCSW candidates.

Monique creates a warm, supportive, and non-judgmental space for clients to be their whole selves. She values honesty, collaboration, and open communication, blending evidence-based approaches like CBT, ACT, and narrative therapy with relational and mindfulness techniques. Her work is trauma-informed, culturally responsive, sex-positive, and LGBTQIA+ affirming. She helps clients build emotional awareness, set healthy boundaries, and cultivate self-compassion, addressing both the “why” behind patterns and practical tools for change.

Monique begins by exploring each client’s story, history, and goals. Together, they create individualized, evidence-based treatment plans, regularly adjusting as needed. Sessions are collaborative, providing insight, practical tools, and emotional support to apply in real life. Progress is measured not only by symptom reduction but by increased self-awareness, emotional stability, and confidence in navigating challenges.

Michael Greenwald is a Licensed Clinical Social Worker who earned his Master’s degree in clinical social work from the University of Chicago. He has experience in a variety of clinical settings, including primary care centers, college campuses, and long-term care facilities for adults with serious mental illness.

Michael specializes in solution-focused therapy, offering practical techniques to help patients manage challenges in the present moment. While he primarily draws from Cognitive Behavioral Therapy (CBT) and Acceptance and Commitment Therapy (ACT), he tailors each session to meet the unique needs of the patient. He brings compassion, creativity, and a sense of humor to every session.

Michael approaches therapy as a collaborative process, guiding patients toward goals aligned with their personal values. He helps reinforce strengths while motivating meaningful change. After understanding a patient’s history and reasons for seeking therapy, he works with them to develop clear, actionable goals to support growth and a more fulfilling life.

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.

Tiffany Reilly is a Licensed Mental Health Counselor with 8 years of experience providing therapeutic services to children, adolescents, and families in Seattle and New York City. She received her Master's in Counseling from Northwest University in 2015. Before coming to Talkiatry, Tiffany worked as a Family Therapist and Supervisor at Children's Aid. This role gave her experience navigating the complexities of adolescence, young adulthood, marriage, and other interpersonal stressors. She was also able to pursue additional trainings in motivational interviewing, trauma systems, and LGBTQIA supportive counseling. Tiffany focuses on treating mood and anxiety disorders, as well as the complexities of grief and loss. She has additional experience working with trauma, conduct disorder, ODD, and personality disorders. She utilizes a variety of therapeutic modalities including Cognitive Behavior Therapy, Psychoanalytic Theory, and Person-Centered Counseling. Tiffany approaches each therapeutic relationship with empathy and compassion, understanding the uniqueness of personal experience. She believes that all behavior maintains something for each individual and that when we bravely uncover our patterns, we can use our inherent strengths to work towards change.