Joseph Smith, LMHC

Dr. Andrew Luy Tan is a board-certified adult psychiatrist at Talkiatry. He has experience treating a wide range of psychiatric conditions including depression, anxiety, ADHD, trauma-related disorders, and substance use disorders in both inpatient and outpatient settings.

Dr. Luy Tan takes a collaborative, patient-centered approach to care and values open communication and shared decision-making. He integrates supportive psychotherapy with evidence-based medication management as part of a comprehensive treatment approach.

In initial sessions, Dr. Luy Tan focuses on gaining a thorough understanding of each patient’s history, symptoms, and goals. He works with patients to develop individualized treatment plans and provides ongoing medication management with regular reassessment as needs and goals evolve.

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.

Tiffany Vickers is a board-certified Psychiatric Nurse Practitioner who earned her Master of Science Degree from Southeastern Louisiana University. She takes a holistic approach to mental health by recognizing the essential connection between the mind and body. Tiffany has 26 years of diverse experience in the clinical, home, and telepsychiatry settings.

Tiffany is committed to creating a safe, supportive, and nonjudgmental space where clients feel heard. She is especially passionate about reducing the stigma surrounding mental illness and believes in partnering closely with clients to help them achieve meaningful and lasting progress.

New patients working with Tiffany can expect a collaborative, respectful, and goal-oriented approach to care. She specializes in treating adults with ADHD, anxiety, bipolar disorder, depression, OCD, and PTSD. Tiffany's treatment approach utilizes a combination of medication management, lifestyle modifications, supportive therapy, and solution-focused techniques.

Her approach is grounded in empathy, clinical expertise, and a commitment to helping each individual achieve their mental health goals.

Tiffany follows a multi-stage, personalized approach when working with clients. She begins by gathering a comprehensive history, understanding the client's primary concerns, and identifying both short- and long-term goals. From there, she collaborates with each individual to develop a tailored treatment plan that includes client-specific interventions.

Tiffany's process is dynamic and adaptive! She monitors each client's progress and adjusts care as needed to ensure it remains aligned with their needs and goals. This thoughtful, individualized approach supports lasting outcomes and empowers clients to take an active role in their mental health journey.

Matthew Green is a Licensed Mental Health Counselor in the state of New York with over seven years of experience in outpatient settings, both in person and virtual. He earned his master’s degree from St. Bonaventure University and began his career at Olean Counseling Center, where he also completed his internship. Licensed since 2022, Matthew brings compassion and clinical expertise to each session.

Matthew strives to create a warm, supportive, and open space where clients feel safe, heard, and respected. He believes trust is essential to meaningful therapeutic work and values open communication to set clear, collaborative goals. His approach is grounded in mutual respect and genuine connection.

In the first session, Matthew gathers a thorough history to understand the full scope of a client’s experiences and goals. He then creates an individualized treatment plan and focuses initially on coping strategies to support day-to-day functioning. As therapy progresses, the work shifts toward deeper issues and goal achievement.

‍

Dr. Irene Pastis is a board-certified psychiatrist who specializes in adult psychiatry.  She completed residency training at East Carolina University in both internal medicine and psychiatry.  After residency, she pursued her passion in psychiatry and stayed on as a clinical assistant professor in the department of psychiatry at East Carolina University.  In this role she specialized in treating adults with mental illness in both the inpatient and outpatient settings.  She has spent a considerable amount of time teaching residents and medical students and has published several papers focusing on the neuroscience pathways of mental health conditions.  In her daily practice, Dr. Pastis focuses on evidence-based treatments utilizing the latest clinical guidelines and current approved treatments.  In addition to medication management, she also incorporates psychotherapy in the treatment of mental health conditions.  Dr. Pastis is passionate about taking a collaborative approach with her patients to help them reach their potential.

Beverly Toussaint is a Licensed Clinical Social Worker actively licensed in the District of Columbia and Virginia. She earned a B.A. in Psychology from UMBC and a Master of Social Work from the University of Maryland School of Social Work. Beverly has over 15 years of independent clinical experience in the DMV, providing care in private practice, nonprofit, medical, federal, and military settings. Her background includes working with individuals, families, and military members, as well as offering clinical supervision, leadership support, and professional development services.

Beverly takes a collaborative and goal-focused approach to therapy. Sessions are centered on identifying personal goals and creating practical action steps to support meaningful change. She works alongside clients to help them build momentum in areas of concern while offering consistent guidance, encouragement, and accountability. Her priority is supporting each client’s individual goals and progress.

Beverly works with clients to identify needs, strengths, and motivation for change. She uses a variety of talk therapy approaches, including CBT, SFBT, DBT, and Narrative Therapy, to develop achievable treatment plans. Her style emphasizes motivation, accountability, and partnership, adapting support to meet each client’s unique needs.