Noor Zayed, DO

KaShunda "Shun” Davis is a Licensed Professional Counselor in Texas. She received her Master of Science in Counseling at Amberton University and postgraduate studies in Professional Counseling and Development at Lamar University. Shun has worked in various settings in the mental health field including community-based counseling centers, private practice, and large group practices providing counseling services to adults, couples, and adolescents. Her professional experience has focused on mood disorders (depression, bipolar disorder, persistent affective disorder), anxiety, trauma, personality disorders, self-esteem and confidence, gender identity and LGBTQIA+ concerns; relationship concerns, and life transitions. Shun's integrative therapeutic style provides an emotionally safe space that supports self-exploration, empowerment, and authenticity. Specializing in cognitive behavior therapy, dialectical behavior therapy, trauma-focused therapy, narrative therapy, and mindfulness; she tailors her approach to meet the unique needs of each individual. She is dedicated and passionate about assisting individuals to work through barriers to create the lives and relationships that they desire and to develop a sense of personal strength and self-acceptance. She celebrates and welcomes the diversity of all clients and strives to create an affirming, inclusive, and non-judgmental space to explore individual needs and therapeutic goals.

Dr. Sallie Jo Hadley holds the position of Staff Psychiatrist at Talkiatry. She is board-certified in psychiatry and pediatrics and is board-eligible in child and adolescent psychiatry. She has been practicing for 22 years. Dr. Hadley's practice is focused on medication management with supportive therapy in follow-up sessions of 15 or 30 minutes. Dr. Hadley is experienced with collaborative treatment and encourages adding a therapist to your care team in those situations where additional therapy might be helpful. Dr. Hadley is a graduate of the Mount Sinai School of Medicine's triple-board program (psychiatry, pediatrics, and child and adolescent psychiatry). She completed post-doctoral research fellowships at Mount Sinai's Seaver Center for Autism Research/Compulsive-Impulsive Anxiety Disorders and at Columbia University's New York State Psychiatric Institute, the latter focusing on metabolic and weight issues in children and adolescents with psychiatric disorders. Dr. Hadley had an early background as a nurse, receiving her B.S. in Nursing from the University of North Carolina-Chapel Hill. Her experience in neonatal, psychiatric, and hospice nursing led her to pursue her degree in medicine. Dr. Hadley has worked in pharmacologic research in both academic and industry settings. Prior to joining Talkiatry, she practiced in a multi-specialty clinic for individuals and families dealing with autism or intellectual disabilities and complex medical co-morbidities. Dr. Hadley enjoys working with motivated individuals of all ages who are seeking to better their life or better cope with life circumstances. She has particular expertise in working with individuals and their families suffering from anxiety, depression, and obsessive-compulsive disorders.

Thomas Reis is a clinical social worker, independently licensed in Massachusetts. He has 12 years of experience working as a psychotherapist providing psychotherapy to adults both in an outpatient setting and through telehealth. Thomas has experience working with anxiety and mood disorders, attention-deficit/hyperactivity disorder and stress. He specializes in helping people navigate challenging life transitions, existential crisis, addictions, including chemical, behavioral, and process addictions. Thomas helps others empower themselves to improve their self-esteem and the quality of their relationships by teaching healthy boundaries, assertive communication, and active listening skills. By utilizing and teaching strategies and interventions from Motivational Interviewing, Cognitive Behavioral Therapy, Acceptance and Commitment Therapy, and Solution Focused Brief Therapy, Thomas takes a client-centered approach while working with his clients. He enjoys his work and is passionate about helping people who want help. He attempts to empower clients to work toward achieving their own individual goals at their own pace while being empathetic and open-minded. Thomas works with his clients to create an open and safe environment where thoughts and feelings can be shared without fear of judgment.

Rebecca Kostopoulos, PMHNP, is a board-certified psychiatric nurse practitioner dedicated to helping people struggling with mental health concerns find ways to live a full and balanced life. Rebecca's practice focuses on medication management. Typically, she offers this in conjunction with supportive or emotionally focused therapy during 30-minute follow-up visits. However, occasionally Rebecca may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best outcome. She received her Master of Science in Nursing with a specialty in psychiatry from Columbia University and her Bachelor of Science in Nursing from Boston College. She is trained in psychiatric diagnosis, medication management, and psychodynamic and cognitive-behavioral therapies. Rebecca has extensive experience evaluating and treating adults in a variety of settings over the past 10 years. Previously, she worked at Elmhurst Hospital's Comprehensive Psychiatric Emergency Program and at Gracie Square Hospital in an inpatient unit, in addition to community health settings and skilled nursing facilities. As a nurse practitioner, she believes that addressing mental health concerns is just as important as addressing physical concerns. She values the therapeutic relationship with a collaborative and empathic approach to treatment.

Dr. Pressley Warrick is a double board-certified psychiatrist specializing in general psychiatry and child and adolescent psychiatry. Dr. Warrick currently practices full-time, offering comprehensive psychiatric care to children, adolescents, and adults. She previously established and led a Behavioral Health Clinic integrated within a Family Medicine Practice. Prior to this role, Dr. Warrick provided dedicated psychiatric care at a private psychiatry practice for over a decade.

Dr. Warrick earned her medical degree from the Medical University of South Carolina, completed residency training at Baylor College of Medicine's Menninger Department of Psychiatry and Behavioral Sciences, and pursued additional specialization through a Child and Adolescent Psychiatry fellowship at Palmetto Health/USC School of Medicine.

Known for a collaborative and holistic treatment approach, Dr. Warrick emphasizes individualized care and evidence-based practices to support patients’ mental wellness. Her professional excellence has earned recognition as Sumter’s Best Psychiatrist for consecutive years.

Dr. Warrick’s preferred treatment modalities include medication management, psychodynamic psychotherapy, and supportive psychotherapy. She specializes in treating depression, anxiety, ADHD, autism, OCD, bipolar disorder, and PTSD. Her typical approach for new patients involves taking a detailed patient history, establishing rapport, and setting clear treatment goals in partnership with her patients.

Shanika is a dedicated and compassionate board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) with over a decade of experience in the mental health field. She holds a Bachelor of Science in Nursing, a Masters in Nursing Education, and a Post-Master’s Certificate as a Family Psychiatric Nurse Practitioner. Shanika is known for her patient-centered approach, prioritizing empathy, respect, and individualized care. She is committed to building strong therapeutic relationships grounded in trust and open communication.

New patients can expect a warm, non-judgmental environment where they feel heard and supported. Shanika collaborates closely with each patient to create personalized treatment plans, helping them feel empowered in their mental health journey.

Shanika begins with a comprehensive psychiatric evaluation to understand each patient’s history, symptoms, and goals. Her treatment may include medication management, supportive therapy, and psychoeducation. She specializes in anxiety, depression, bipolar disorder, ADHD, trauma/PTSD, mood disorders, and women’s mental health. Shanika has extensive experience providing care for both adolescents and adults in outpatient settings, with a particular focus on underserved communities.

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