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Meet Our Sayville Therapists

Adrian Fields, MS, LMHC


Adrian is a licensed psychotherapist with over 15 years of mental health experience. She believes in open-minded, non-judgmental, and personalized treatment for all clients.  Adrian has experience in clinical counseling as well as clinical research and mental health education. As a solution-focused psychotherapist, her goal is to help you to uncover the obstacles that are preventing you from living a life of happiness and fulfillment. By applying complementary therapy approaches, Adrian will work collaboratively with you to address non-beneficial behavioral and thought patterns that are holding you back.

Adrian is committed to leading her clients on a path of self-discovery and personal growth. Through a holistic approach with the addition of science, Adrian helps her clients reach their goals of emotional health and overall well-being. In her personal life, Adrian is a mother of 4 and enjoys hiking, gardening and healthy cooking. 

Areas of Expertise: Anxiety, Depression, Trauma and PTSD, Couples Counseling, Co-Parenting, Divorce/ Separation, Family Discord, Life Transitions, Occupational Stress, Men’s Issues, Military Lifestyle

Rachel Hartman, MS, LMHC


Rachel is a Licensed Psychotherapist with experience over the past 10 years in a variety of settings. She believes in providing a safe environment; free from judgement with an open-minded approach.  Rachel tailors her approach to suit you and your needs by combining Mindfulness, Self-Compassion, and Cognitive Behavioral approaches to address a range of clinical concerns. Rachel collaborates with her clients to join them on their journey to self-compassion and personal growth while providing techniques to assist in day to day life. She believes that therapy is very much a path of self-discovery and would be honored to walk with you. Rachel strives to provide the best therapeutic experience that she can. She believes in making therapy fun and tempers this fun with strong empathy to make the experience an enjoyable one for every client. Rachel aims, with each client, to make them feel heard and to understand they are not alone. In her personal life Rachel is an avid painter, enjoys music, and will always say yes to an iced coffee.

Areas of Expertise: Anxiety, Depression, Mood Disorders, Couples Counseling, Relationship Issues, Self-Esteem, Life-Coaching, Men's Issues, Behavioral Issues, Trauma Recovery, Social Anxiety

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Christina Postiglione, MS, LMHC

Christina  is a mental health counselor who has experience in a variety of settings. Christina has worked with adolescents and adults using individual and group counseling methods over the past 5 years. She helps individuals explore their thoughts and feelings by utilizing different approaches such as person-centered, cognitive-behavioral, and solution-focused therapy.
Christina holds a warm and supportive environment that provides individuals with the opportunity to develop healthy coping skills, better their overall wellbeing, and achieve their desired goals. She is devoted to her clients by personalizing each session to fit the individual needs of every client. Her priority is to help her clients feel empowered, become their best self, and to provide her clients with the tools to effectively cope with life’s challenges. In addition to work, Christina enjoys sports, painting, and spending time with her friends and family.


Areas of Expertise: Anxiety, Depression, Adolescents & Adults, Life Transitions, Eating Disorders, Athlete Issues, Young Adult Stress, Trauma Recovery, Interpersonal Issues, Coping Skills, Self -Esteem


Taylor Logerfo, MS, LMHC

Taylor is a mental health professional who believes in empowering her clients in discovering their own self worth and confidence.  She has experience with helping clients of all backgrounds  through the use of eclectic counseling approaches individualized to meet the needs of each individual she works with. Taylor believes in the power of empathy in assisting clients through healing and growth in order for her clients to achieve their goals and take back control of their lives with insight into the mind body connection. Her clients can expect to work collaboratively with their therapist in a welcoming, non-judgmental environment that will help foster healing, empowerment and self-fulfillment. Taylor uses the techniques she suggests with her clients in her own personal life where she enjoys the outdoors, sunsets, and her two cats.

Areas of Expertise: Anxiety, Depression, Adolescents & Adults, Impulse Control, Family Dynamics, Academic Stress, Young Adult Stress,

Self-Esteem, Behavioral Issues, Coping Skills, Life-Coaching

Marissa Boscia-Wittekind, MS, LMHC


Marissa is a Licensed Mental Health Counselor and Credentialed Alcohol and Substance Abuse Counselor who has experience in a variety of settings. Throughout her 9 years in the field, she has worked with both adults and adolescents using individual and group counseling methods. To assure a personal therapeutic experience, Marissa tailors her session to fit the individual needs of each client.  
Marissa utilizes a solution-focused approach as well as various other modalities to best address each unique situation. Her sessions are designed to provide a supportive environment in order to develop emotional regulation techniques and resilience, coping skills, communication skills and overall wellness.

In addition to her career, Marissa enjoys staying active through yoga, running, and spending time with her family.

Areas of Expertise: Anxiety, Depression, Mood Disorders, Impulse Control, Addiction & Recovery, Substance Use, Dual Diagnosis,

Self-Esteem, Behavioral Issues, Trauma Recovery, Life-Coaching

Jillian McManus, MS, LMHC


Jillian is a Licensed Mental Health Counselor who has been in the field for over 6 years and holds CASAC credentials for substance abuse counseling. She wholeheartedly believes that no two people have had the same experience, and that everyone deserves to be treated with unconditional positive regard. When people are struggling, or just feeling "stuck", there are adjustments that need to be made to make everyday the best day possible. Jillian welcomes her clients to explore those struggles or feelings in a safe and nurturing and environment.

Jillian combines several different therapeutic approaches, customized in a unique collaboration to develop a treatment plant to best serve the needs of her clients. She assists her clients to become motivated to make the desired changes in their life, develop coping skills, and become more self-aware and confident, enabling them to attain their goals. Her priority is to assist clients in becoming their best possible self. Outside of work, Jillian enjoys live music and theatre.

Areas of Expertise: Anxiety, Mood Disorders, Adolescents and Adults, Impulse Control, Self-Esteem, Substance Use Disorders, Addiction and Recovery, Men's Issues, Behavioral Issues, LGBTQ, Social Concerns

Christine Walzak, MS, LMHC


Christine is a mental health counselor with over 10 years of mental health experience. She focuses on maintaining a respectful, ethical, inclusive, and empathetic environment with individualized treatment for all clients. Christine has worked with a variety of clients dealing with an expansive range of concerns from behavioral issues, mood and personality disorders and co-occurring diagnoses. This experience has assisted Christine in fine-tuning a cognitive behavioral, mindfulness, and solution-focused approach. This conjunction of approaches allow clients to identify their goals, emotions, and potential reactions to lead a more fulfilled and self-sustaining life. Christine is devoted to helping her clients move towards and accomplish their goals while refining their strengths. Through the use of a combination of clinical interventions that are both collaborative and solution-focused, Christine helps her clients to reach a more satisfied emotional well-being. In her personal life, Christine enjoys creating art, spending time with family and friends, and playing with her dog.

Areas of Expertise: Anxiety, Depression, Mood Disorders, Social Anxiety, Self-Esteem, Impulse Control, Life Coaching, Adjustment Disorders


Blake Garcia, MS, LMHC

Blake is a Licensed Mental Health Counselor that has experience working with a variety of clients and their mental health concerns. He believes in providing a safe, judgement-free space where clients feel supported in their efforts to change. Blake works from a cognitive, trauma-informed perspective. He utilizes various interventions to meet specific needs of his clients. Blake uses a direct approach to challenge his clients, set boundaries, and identify problematic patterns in order to make healthy changes. Blake works collaboratively with his clients to assess their different concerns and implement health behavioral patterns to improve mental wellness. His clients can expect to feel empowered, supported, and energized to make changes in their life. 

Areas of Expertise: Anxiety, Depression, Mood Disorders, Adjustment Disorders, Impulse Control, Couples Counseling, Social Anxiety, Family Dynamics, Self-Esteem, Life-Coaching

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