Caitlin Gardiner, MD

Dr. Dennis Valerstain is a board-certified Adult and Child and Adolescent Psychiatrist. After completing his undergraduate education at Emory University, he attended medical school at the Northwestern University Feinberg School of Medicine. He subsequently completed psychiatry residency at University of Miami/Jackson Health System and further sub-specialized at University of Miami/Jackson Health System with a fellowship in Child and Adolescent Psychiatry. Dr. Valerstain has had the opportunity of working with a diverse array of patients including children, adolescents, the severely mentally ill, veterans, and cancer patients across three distinct hospital systems. Dr. Valerstain has had varied clinical experiences in specialty inpatient psychiatry units, emergency psychiatry, consultation liaison psychiatry, psycho-oncology, and outpatient clinics via telemedicine and face to face interactions. Dr. Valerstain has experience working with patients of all ages, particularly those with depression, anxiety, bipolar disorder, ADHD, Tic disorders, substance use disorders, and more. Dr. Valerstain's practice focuses on medication management and also employs empathic listening, supportive psychotherapy techniques, and a comprehensive and methodological approach to his visits. Given his broad and diverse training experiences, he enjoys problem solving and working collaboratively with patients (and their families) to navigate their complex issues and jointly focusing on simple solutions to work towards improving their mental health.

Dr. Romanow is double board-certified in Adult Psychiatry and Forensic Psychiatry. He graduated summa cum laude from the University of Pittsburgh with a Bachelor of Science degree in Sports Medicine/Athletic Training and then attended Drexel University College of Medicine. After medical school, he completed his residency in Adult Psychiatry at the University of Virginia, where he obtained a certificate in additional psychotherapy training. After residency, Dr. Romanow completed a fellowship in Forensic Psychiatry at the University of Virginia. During his fellowship, he trained at the prestigious Institute of Law, Psychiatry, and Public Policy (ILPPP) and Western State Psychiatric Hospital where he performed criminal and civil forensic evaluations. He also provided clinical care at a maximum security prison. Prior to joining Talkiatry, Dr. Romanow worked at a healthcare system in Montana providing inpatient and outpatient psychiatric care involving medication management and psychotherapy. Additionally, he operates a private forensic psychiatry practice that conducts mental health evaluations for the legal system. Dr. Romanow has extensive experience treating various mental health disorders including depression, bipolar disorder, anxiety and obsessive-compulsive disorders, post-traumatic stress disorder, and ADHD. His clinical work includes assisting patients who experience mental health disorders with co-occurring substance use problems. He has training in various schools of psychotherapy including cognitive behavioral therapy (CBT), CBT for insomnia, motivational interviewing and supportive psychotherapy. Dr. Romanow incorporates treatment focusing on the importance of exercise, diet, and good sleep habits as a part of comprehensive mental health care.‍

Dr. Christopher DeBernard is a board-certified psychiatrist with extensive clinical leadership experience. He earned his MD and completed a combined residency in Internal Medicine and Psychiatry at Tulane University School of Medicine. Previously board certified in Internal Medicine, he is especially comfortable caring for patients with medical comorbidities. Dr. DeBernard has worked in both inpatient and outpatient settings and held leadership roles as Chief Medical Officer at Arisa Health and Lotic.ai. He also brings a systems-thinking perspective to clinical care from earlier careers in engineering and consulting. He holds active medical licenses in Louisiana and Arkansas.

Dr. DeBernard strives to create a warm, collaborative environment where patients feel respected, understood, and supported. His approach combines evidence-based medicine with an appreciation for each patient’s unique story, values, and motivations. Patients can expect open, direct communication, shared decision-making, and treatment plans that align with their personal goals. Trust, empathy, and authenticity form the foundation of his therapeutic relationships.

Dr. DeBernard begins by listening closely to each patient’s history, concerns, and hopes for treatment. Together, he works with patients to establish clear goals and develop individualized care plans that may include therapy, medication management, and lifestyle approaches. His focus is on both symptom relief and building long-term resilience, helping patients develop strategies that sustain well-being. Over time, he collaborates with patients to adapt treatment as their needs evolve, ensuring care remains effective and personalized.

Dr. Delane Casiano is a board-certified adult psychiatrist with specialized interest and expertise in cultural psychiatry. She earned her undergraduate degree from Brown University and her medical degree from Morehouse School of Medicine. She completed psychiatry residency and research fellowship at the University of Pennsylvania. Such organizations as the American Psychiatric Association, National Institute of Mental Health, and Philadelphia Department of Behavioral Health have recognized her research examining cultural influences on mental health beliefs and service utilization.

Dr. Casiano brings a systems-based, culturally informed perspective to her work. With over 15 years of experience, she has supported individuals with diverse backgrounds and identities. Examples of her leadership of multidisciplinary teams include serving as associate medical director of a women's trauma program and founding an integrated care program for underserved communities. She has directed academic training programs, presented at national conferences, and led numerous community-based events focused on mental health awareness and stigma reduction.

Dr. Casiano values compassion and collaboration in the treatment relationship. She helps patients navigate depression, anxiety, ADHD, and post-traumatic stress, while also supporting those facing major life transitions.

Her approach combines evidence-based medication management, supportive therapy, and

psychoeducation. She tailors each treatment plan to the individual while offering encouragement and structure.

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 Chu earned her medical degree from the University of Southern California and completed her psychiatry residency at the Medical Center of Aurora. She has experience treating a wide range of psychiatric conditions, including depression, anxiety, ADHD, obsessive-compulsive disorder, panic disorder, and post-traumatic stress disorder.

Dr. Chu takes a holistic approach to psychiatry, aiming to promote long-term wellness and address root causes. Along with medication and psychotherapy, she may explore diet, nutrition, lifestyle factors, and integrative therapies. She strives to create a warm, supportive environment where patients feel truly heard.

Dr. Chu values shared decision-making. She listens carefully to patients’ concerns and goals and collaborates with them to develop individualized treatment plans tailored to each person’s needs.