Ruosi Liu, MD

Dr. Onah Uwagbai is a board-certified psychiatrist who earned her medical degree from St. George’s University School of Medicine. She completed her psychiatry residency at the University of Kansas Medical Center, where she served as Chief Resident at the Kansas City VA hospital and was recognized for Excellence in Scholarship. Most recently, she worked at the North Texas VA Healthcare System, caring for individuals with treatment-resistant depression and complex psychiatric needs.

Dr. Uwagbai has a passion for supporting individuals with mood disorders, anxiety, trauma, and women’s mental health. She believes healing is best achieved through compassion, collaboration, and respect. Patients can expect a warm, supportive environment where they feel heard and understood, with treatment tailored to their unique history and goals.

Dr. Uwagbai begins with a comprehensive evaluation to understand each patient’s needs and then develops an individualized treatment plan. She draws on evidence-based practices, including expertise in complex cases, and may incorporate both therapy and medication management. Her goal is to empower patients to take an active role in their care while fostering resilience, stability, and long-term wellness.

Dr. Kim Brownell, MD, has extensive experience in both outpatient and inpatient settings. While on active duty, she practiced across the country in diverse rural and urban environments. Most recently, she spent eight years working with veterans in the VA healthcare system. She earned her medical degree from the Uniformed Services University of the Health Sciences, completed a Pediatrics Residency at Johns Hopkins Hospital, and later trained in Adult and Child Psychiatry at The Institute of Living, Hartford, CT.

Dr. Brownell values open communication and works with patients to set clear, achievable treatment goals. She fosters a warm, supportive environment where patients feel heard and respected. Her approach combines psychiatric medication management with supportive psychotherapy, elements of DBT, stress management techniques, and cross-cultural wisdom to meet patients where they are and collaboratively optimize wellness.

Dr. Brownell begins with a thorough one-hour evaluation to discuss current symptoms, treatment history, medical background, and personal goals. She listens carefully to each patient’s story to design an individualized plan that aligns with their objectives. Rooted in compassion and collaboration, she integrates her clinical expertise and life experience—including working with veterans and underserved populations—to identify strengths and guide patients on their mental health journey.

Dr. Katherine Vital-Daley is an adult psychiatrist at Talkiatry. She treats all adults and her passion lies in providing accessible care for women facing challenges throughout pregnancy, childbirth, and postpartum and in reproductive psychiatry. Dr. Vital-Daley's academic background is rooted in science, with an undergraduate degree in biochemistry and molecular biology from the University of California, Merced. She then pursued her medical doctorate at the Medical University of the Americas. Following medical school, she completed her psychiatry residency training. The first two years were spent at East Carolina University, Brody School of Medicine, with a culmination of her last two years of residency at Allegheny Health Network in Pittsburgh, Pennsylvania, to further specialize in women's mental health, which solidified her expertise in this vital area.‍At Allegheny Health Network's Women's Behavioral Health clinic, Dr. Vital-Daley honed her skills in treating a range of conditions, including depression, anxiety, PTSD, OCD, bipolar disorder, and related issues, and served as a medical provider for their intensive perinatal/postpartum outpatient clinic. She also developed a deep understanding of perinatal mental health, supporting patients coping with perinatal loss and traumatic birthing experiences. In her practice, she employs supportive psychotherapy and mindfulness along with evidence-based medication management, utilizing the most current clinical guidelines and treatment modalities. ‍Dr. Vital-Daley's approach is rooted in a collaborative treatment approach. She works closely with patients, exploring past and current stressors and any relevant medical conditions to develop a comprehensive understanding of their individual needs. Recognizing the importance of cultural competency, she incorporates patients' unique backgrounds, beliefs, and core values into her care plans.

Dr. Juliet Nichols has been a diplomate of the American Board of Psychiatry and Neurology since 2002 and has been practicing psychiatry for over 25 years. While an expert in psychopharmacology, Dr. Nichols has an integrative approach to treatment and she often incorporates psychotherapeutic techniques when appropriate, tailoring every treatment to each patient's individual needs. She completed her Psychiatry residency at Stony Brook-SUNY and Geriatric Psychiatry Fellowship at the Albert Einstein School of Medicine. Over the last two decades, Dr. Nichols served as an attending psychiatrist at JT Mather Hospital in Port Jefferson, NY, where she became proficient in delivering stellar psychiatric care in a variety of settings. She specializes in treating adult and geriatric mental illnesses, including: Depression, Anxiety Disorders (eg, OCD, Panic Disorder, GAD, PTSD), ADHD, and Cognitive Disorders in the elderly. Dr. Nichols strives to help her patients gain insights into their inner conflicts, unveil their strengths, accept their limitations, and build their coping skills. Her approach is dynamic, straightforward, and empathic so patients always feel safe, understood, and at ease. She engages the patient to be an active participant in treatment decision-making, creating a strong therapeutic alliance.‍

Dr. Paul has worked in outpatient private practice psychiatry for nearly 20 years. Throughout her career, she has combined medication management with talk therapy, to provide comprehensive care tailored to each patient's needs. Dr. Paul received her MD from The University of Iowa. She completed an intern year in Obstetrics and Gynecology at The University of Illinois, Chicago, and went on to psychiatry residency at Lutheran General Hospital in Park Ridge, IL. Dr. Janeen Paul is board certified in Adult Psychiatry. She specializes in Women's Issues, including pregnancy, postpartum and menopause, and has extensive experience treating depression, bipolar disorder and anxiety disorders, including OCD and PTSD. The mind/body connection is at the forefront of her care, with attention paid to diet and exercise as well as breathing and meditation. She often collaborates with primary care physicians and therapists to provide a team approach to treatment. She treats patients over age 18.‍

Dr. Mennella is a board-certified adult psychiatrist. Her practice focuses on medication management and supportive therapy. Treatment emphasizes patient education and autonomy. Dr. Mennella is a proponent of shared decision-making and believes this facilitates a strong therapeutic relationship, greater satisfaction with care, and improved clinical outcomes. She completed an undergraduate degree in Information Technology from Purdue University and a master's degree in information systems from DePaul University. She received her medical degree from the University of Toledo College of Medicine and then completed her psychiatry residency at Loyola University Medical Center. Areas of interest include depression, bipolar, anxiety, and PTSD.