Lorraine Wharton-Mohammed, MD

Dr. Robert Dugger is a board-certified psychiatrist in General Psychiatry and Child & Adolescent Psychiatry. Born and raised in Miami to a Virginian father and Cuban mother, he is bilingual in English and Spanish. He earned a B.A. in Biology and Political Science from the University of Miami, a Master of Public Health in Health Policy from New York Medical College, and his M.D. from Stony Brook University School of Medicine. He completed residency and fellowship training in New York through the Northwell Health System and BronxCare Health System, where he served as Chief Fellow in Child Psychiatry. He has also worked as a researcher at institutions including Columbia University. Outside of work, he enjoys gaming, sci-fi fantasy, Brazilian Jiu-Jitsu, hiking, sailing, and sportfishing.

Dr. Dugger strives to create a supportive and respectful environment where patients feel genuinely heard and understood. He values careful listening, curiosity, and follow-through, and takes a practical, individualized approach to care. Rather than relying on one-size-fits-all solutions, he collaborates with patients to clarify goals, track progress, and focus on changes that meaningfully improve daily life.

Dr. Dugger begins by developing a thorough understanding of each patient’s history, current concerns, strengths, and goals. Early visits focus on understanding context—what is happening now, what has been tried, and what the patient hopes to change. Treatment plans are developed collaboratively and adjusted over time, with follow-up visits emphasizing steady, sustainable improvement through integrated and comprehensive care.

Dr. Peter Szeibel is board certified in adult psychiatry and has been practicing for over 36 years. His practice has focused primarily on medication management within the context of a supportive psychotherapeutic relationship. He also utilizes cognitive behavioral techniques. If the patient requires more intensive psychotherapy, Dr. Szeibel refers the patient to a therapist and collaborates with the therapist. Dr. Szeibel has experience in treating Depressive Disorders, PTSD, Panic Disorder, OCD, Bipolar Disorder, ADHD, and many other conditions. He feels his personal strengths include his inquisitiveness, scientific curiosity, and his desire to understand his patients better. Dr. Szeibel was born in Hungary, just a few months before the Hungarian Revolution against the Soviets broke out in 1956. He and his family fled under difficult circumstances and immigrated to the United States. Dr. Szeibel grew up in New York City. He attended The Bronx High School of Science, followed by Columbia University for his B.A., where he took a double major in chemistry and music. After obtaining his M.D. from S.U.N.Y in Syracuse, he returned to New York City for residency and fellowship training. During this time he won the Bendheim Fellowship Award at Cohen Children's Medical Center for his research study which examined the effects of background music on the academic performance of children with ADHD. His current areas of interest include adult ADHD, psychiatric and medical co-morbidities, and the LGBTQ population.

Ethan Bardell holds the position of Psychotherapist at Talkiatry. He completed both his undergraduate and graduate training at Clarion University of Pennsylvania. Ethan obtained his BS in Rehabilitative Sciences and Human Services with a concentration in developmental disabilities. Ethan then completed his MS in Clinical Mental Health Counseling. Ethan has a strong background in community mental health work, where he has worked with individuals, couples, families, and groups using a client-centered approach that is both gentle and supportive. In sessions, Ethan works to create a welcoming space where individuals can both process and make sense of their unique experiences, while using a combination of modalities to best fit the needs of each individual. Ethan has a true passion and interest in treating a wide array of psychiatric disorders including anxiety, depression, bipolar disorder, posttraumatic stress disorder, dual disorder, and substance use issues, and various personality disorders.‍

Dr. Alfers is a board-certified psychiatrist specializing in adult psychiatry. He has been practicing for over 11 years. He completed his undergraduate education at Virginia Tech, graduating Cum Laude with degrees in Biology and Chemistry. Following graduation, he attended a research internship at the National Institutes of Health where he received a Post-baccalaureate Intramural Research Training Award. Dr. Alfers completed his medical degree from the Western University of Health Sciences in Pomona, CA. He completed his General Psychiatry Residency at Georgetown University, where he served as Chief Resident. After residency, he entered private practice in McLean, VA. Dr. Alfers takes a comprehensive approach to patient care. He integrates biological, psychological, and environmental factors into treatment planning. He focuses on developing a meaningful therapeutic relationship and providing medication interventions for specific treatment goals. Dr. Alfers provides interpersonal psychotherapy in conjunction with medication management services. Dr. Alfers has a special interest in the treatment of multiple mental health conditions, including depression, anxiety, bipolar disorder, PTSD, ADHD, and OCD. Dr. Alfers treats adults ages 18 to 65 years old. For established patients of Dr. Alfers, please call 917-634-5311 to schedule an appointment and let the care coordinator know you are an established patient.

Dr. Tiffany Abtahi is board certified in adult psychiatry and has been in practice for over 6 years. She completed her residency at Icahn School of Medicine, Elmhurst Hospital Center program where she served as Chief Resident in her final year. After completing her residency training, Dr Abtahi worked as a staff psychiatrist in the VA Medical Center focusing on PTSD, depression, and anxiety. Dr. Abtahi has held an academic appointment at the University of UT Southwestern medical school and has spent her professional career supervising/teaching medical students and psychiatry residents. Dr. Abtahi's practice focuses on medication management and providing psychoeducation to her patients. However, if indicated, Dr. Abtahi may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best outcome. Dr. Abtahi has experience treating a large variety of mental health conditions across a variety of populations. She strongly believes in tailoring treatments through a holistic and patient-centered approach based on individual and multi-faceted histories. Dr. Abtahi looks forward to working with you.

Dr. Sarita Sharma is a board-certified adult psychiatrist dedicated to providing personalized psychiatric treatment that addresses the mind, body, and spirit for optimized health and healing. Born and raised in Toronto, Ontario, she earned her medical degree from Avalon University School of Medicine in Curacao and completed her residency at Southern Illinois University in Springfield, Illinois. Dr. Sharma has extensive experience working with underserved patients from diverse backgrounds and with varying severities of psychiatric disorders. She has a genuine interest in treating mood and anxiety disorders like depression and anxiety. She views medication as one of many tools to aid patients, emphasizing the importance of therapy and lifestyle changes aligned with each patient's goals. Believing in a holistic approach, she incorporates mindfulness techniques, lifestyle optimization (sleep, diet, movement), Dialectical Behavioral Therapy (DBT), Cognitive Behavioral Therapy (CBT), and Acceptance and Commitment Therapy (ACT) to target the root causes of unease. She enjoys helping patients navigate meaning and purpose, relationship dynamics, and self-image. With a sincere, direct, and practical approach, Dr. Sharma values empathy and understanding as vital components of effective care. In her free time, she enjoys spontaneous adventures, connecting with fellow human beings, and just being in nature. She is committed to helping you achieve a balanced, fulfilling life.