Seth Sherman, MD

Margaret Ngumi, MSN, APRN, FNP-C, PMHNP-BC, is a dual board-certified Psychiatric Mental Health and Family Nurse Practitioner with over 20 years of experience in healthcare. She began her career as a Family Nurse Practitioner before recognizing the urgent need for accessible mental health services. This led her to pursue a post-master’s certification in psychiatry, allowing her to provide comprehensive psychiatric care. Margaret has extensive experience treating patients in both inpatient and outpatient settings, addressing conditions such as depression, anxiety, PTSD, mood disorders, and substance use disorders.

Margaret believes in a collaborative, patient-centered approach to mental health care. She strives to create a safe and supportive space where patients feel heard and empowered to take an active role in their treatment. With a strong emphasis on holistic care, she considers all aspects of a patient’s well-being, including lifestyle, relationships, and overall health. Whether through medication management, therapy, or lifestyle modifications, she is committed to helping patients achieve meaningful and lasting improvements in their mental health.

Margaret begins with a comprehensive psychiatric evaluation to understand each patient’s history, concerns, and treatment goals. She then works closely with them to develop an individualized care plan that may include medication management, therapy, and evidence-based lifestyle interventions. She prioritizes open communication, patient education, and ongoing collaboration to ensure that treatment remains effective and evolves with each patient's needs. Through her compassionate and evidence-based approach, Margaret is dedicated to helping patients find balance and improve their overall quality of life.

Dr. Amanda Wright is a board-certified adult Psychiatrist who has been in practice for ten years. Her practice offers in-depth evaluations for new patients, personalized medication management, and supportive and motivational therapy within 30-minute follow up visits. Dr. Wright's professional interest is in mind-body wellness; she believes in psychotropic medication management as one of the tenants of overall wellness and also recognizes that non-medicinal interventions such as psychotherapy can enhance patients' ability to reach their full potential. To that end, if Dr. Wright feels you would benefit from working with a therapist in conjunction to medication management, she welcomes collaboration with your therapy provider. Dr. Wright is a graduate of the University of Texas Health Science Center in San Antonio, where she completed her psychiatric internship and residency training in 2013. From 2013 through 2022 she practiced Psychiatry in Louisiana. While practicing with Ochsner Health System, Dr. Wright was recognized locally (within her practice region) as "Provider of the Month” and later, "Provider of the Quarter” for the larger system of Ochsner. These awards were based primarily on patient feedback and highlight her warm and open approach as well as her genuine care for each patient's best long-term outcomes. In 2022, Dr. Wright and her family moved back to her home state of Texas where she has been practicing both in- and outpatient Psychiatry within a hospital system in the Rio Grande Valley. The broad scope of her professional experience lends itself to working with a variety of Psychiatric issues ranging from mood to anxiety spectrum disorders. Dr. Wright looks forward to returning her focus to outpatient Psychiatry and providing compassionate, individualized care for those seeking treatment.

Dr. Stephen Geisler is a board-certified adult psychiatrist and has been practicing for over 37 years. His practice focuses on medication management, and typically offers this in conjunction with supportive therapy in 30-minute follow-up visits. If Dr. Geisler feels you would benefit from working with a therapist in conjunction with medication management, he welcomes collaboration with your therapist to make for the best outcome. Dr. Geisler is a graduate of the New York University School of Medicine. He completed a fellowship in Psychoanalytic Psychotherapy at the Zucker Hillside Hospital of Northwell Health after finishing his residency training there. He is currently an Assistant Clinical Professor at the Donald and Barbara Zucker School of Medicine at Hofstra/Northwell. Over the years Dr. Geisler has received a number of awards including NAMI Exemplary Psychiatrist Award, The APA Irma Bland Certificate of Excellence in Teaching Residents, the Zucker Hillside Hospital Department of Psychiatry Recognition Award for Education, and twice received the Outstanding Teacher of the Year Award from the graduating residents' class. Dr. Geisler is a member of the American Psychiatric Association, the Nassau Suffolk District Branch of the APA and the American Society of Clinical Psychopharmacology. Through the years, Dr. Geisler has participated in many clinical research projects, has been the co-author of many papers, and has made many presentations. Dr. Geisler specializes in psychopharmacology, especially tailoring individualized treatment to serve the needs of patients with a variety of conditions. He has a lot of experience in treating patients with depression, bipolar disorder, anxiety disorders, ADHD, and OCD.

Dr. Danielle Jackson is a board certified Adult Psychiatrist by the American Board of Psychiatry and Neurology. She is a graduate of Yale University's Psychiatry Residency and Howard University College of Medicine. Dr. Jackson's practice focuses on a combination of psychopharmacology (medication) and psychotherapy techniques including supportive therapy, motivational interviewing and cognitive behavioral therapy. She approaches care from an individualized, patient-centered, collaborative perspective. She often integrates evidence-based lifestyle recommendations in areas such as nutrition, sleep hygiene, exercise, and stress management tools in treatment to help patients achieve their wellness goals. Her interests include adjustment disorder, mood disorders, anxiety disorders, ADHD and trauma-related disorders. In addition, she enjoys helping patients navigate the challenges that can accompany changes in life (careers, parenthood, relationships, chronic illness). Prior to joining Talkiatry, Dr. Jackson served as medical director for substance use and co-occurring disorders at Sunset Terrace Family Health Centers at NYU Langone. She has experience caring for a diverse patient population including those with perinatal mood disorders (postpartum anxiety/depression), substance use disorders and those from minoritized and marginalized communities.

Taylor Jarrett is a psychotherapist who holds a Master's degree in Clinical Mental Health Counseling. Taylor is a Licensed Mental Health Counselor (LMHC) in the state of New York and a National Certified Counselor (NCC). Prior to her work with Talkiatry, Taylor served as a mental health clinician and supervisor at an OMH Article 31 clinic in the Bronx, providing psychotherapy and care to children, adolescents, adults, and families. Taylor's therapeutic approach is person-centered and trauma-informed. Taylor keenly understands there is not a ‘one-size-fits-all' all approach to treatment and meets each client where they are. She individualizes each client's care by utilizing a variety of evidence-based treatment interventions, including Cognitive Behavioral Therapy (CBT), Dialectical Behavioral Therapy (DBT), Interpersonal Psychotherapy, and Trauma-Focused CBT. Taylor believes simply showing up takes courage and is honored to be a witness to her clients' growth journey. She is committed to helping each person become the best versions of themselves by guiding them to identify and utilize their strengths to persevere through and leverage the challenges of life.

Dr. Shelley Sellinger is a board-certified psychiatrist who has been in practice for 25 years. Her career has been devoted to serving both her local community as well as high-risk and underserved patients. As a pioneer and advocate for the use of telepsychiatry years prior to the pandemic, she has presented at the American Telehealth conference as well as at grand rounds. Dr. Sellinger's practice focuses on medication management as well as supportive and insight-oriented psychotherapy. She believes that a combination of therapy, as well as the use of medications, helps provide a patient with the best outcome. Her goal is to help patients live their best and most fulfilling lives. In addition to general psychiatry, she has a keen interest in mood disorders, helping creatives achieve their goals and the LGBTQ community.‍