Lindsay Legnon, MD

Dr. Stephanie Jarvie is a board-certified psychiatrist and has been practicing for over eight years. Stephanie completed her Bachelor's degree at the University of Bristol in her native United Kingdom. She attended Saint George's University school of medicine in Grenada and completed her residency training in psychiatry at New York Medical College Metropolitan Hospital in NYC, New York. As chief resident, Dr. Jarvie learned to balance her clinical experience with organizational duties and scholarly activities. She has played a crucial role, both clinically, and has been a part of multi-disciplinary treatment teams. More recently, she has been an inpatient clinical psychiatrist at Banner University medical center in Arizona and has served as an assistant professor of psychiatry at the University of Arizona for four years. Stephanie is from Edinburgh, Scotland. Her studies and training have taken her on a journey from the United Kingdom and the Caribbean to New York City and Arizona. She uses her exposure to diverse patient populations from around the world to help with her clinical skills and treatment plans. Dr. Jarvie has a wealth of knowledge and experience in treating a diverse range of psychiatric disorders such as major depression disorder, anxiety, bipolar spectrum disorder, and post-traumatic stress disorders. Dr. Jarvie's practice focuses on medication management. She offers this in conjunction with supportive therapy in 30-minute follow-up. She works collaboratively with patients to develop individualized treatment plans to help them achieve their goal, which may include medication management, lifestyle interventions, and stress reduction techniques. Dr. Jarvie believes that additional therapy may be necessary and asks that you bring a therapist into your care team to provide the best outcome.

Dr. John Weller, MD, is a psychiatrist with a strong foundation in science and clinical care. He earned his undergraduate degree in molecular genetics from the University of Vermont and conducted neuroscience research in both academic and industry settings. A graduate of St. George’s University School of Medicine, he completed his psychiatry residency at Mather Hospital, Northwell Health, where he was honored as Resident of the Year in 2025 and inducted into the Alpha Omega Alpha Honor Medical Society.

Dr. Weller is committed to providing compassionate, evidence-based care that considers the full spectrum of biological, psychological, and social factors. He builds therapeutic relationships on empathy, respect, and trust. By tailoring treatment plans to each patient’s personal and cultural context, he helps individuals take control of their mental health and work toward long-term recovery and resilience.

In the first session, Dr. Weller takes time to listen carefully and gather a thorough understanding of each patient's concerns, history, and current functioning. He uses empathy and active listening to foster open communication and develop personalized treatment plans that may include therapy, medication, or lifestyle changes, with the goal of restoring wellness and stability.

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.

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 and later pursued a post-master’s certification in psychiatry to address the growing need for accessible mental health services. Margaret has extensive experience in both inpatient and outpatient settings, treating conditions such as depression, anxiety, PTSD, mood disorders, and substance use disorders.

She takes a collaborative, patient-centered approach to care, creating a safe and supportive environment where individuals feel heard and empowered. With a strong emphasis on holistic care, Margaret 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 goals. She then works closely with them to develop a personalized care plan that may include medication, therapy, and evidence-based lifestyle interventions. She prioritizes open communication, patient education, and ongoing collaboration to ensure treatment remains effective and evolves with each patient’s needs. Through her compassionate and evidence-based approach, Margaret is dedicated to helping individuals find balance and improve their overall quality of life.

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Dr. Parrish is a board-certified adult psychiatrist with extensive experience in community psychiatry, academic psychiatry, veterans' mental health, and correctional psychiatry. She completed medical school and adult psychiatry residency at University of Miami/Jackson Memorial Hospital and a Master of Public Health from University of Virginia. She graduated with honors from University of Southern California with a Bachelor of Arts in Communication.  

Dr. Parrish is a member of the prestigious Alpha Omega Alpha national medical honor society. She has also produced over 20 peer-reviewed papers and posters.  

Dr. Parrish has worked with geriatric patients, individuals who identify as LGBTQ+, patients with serious mental illness, women with perinatal and postpartum needs, individuals with cancer, patients with co-occurring substance use disorders, and combat veterans.  

Dr. Parrish takes a patient-centered collaborative approach to tailor treatment plans to meet each individual's goals. Her technique promotes overall wellness. Utilizing her expertise in diagnosis and pharmacology, she optimizes care, monitors progress and ensures treatment success. Dr. Parrish incorporates behavioral activation techniques to promote improved mental health and overall well-being, with the ultimate goal of helping patients feel their best.

Dr. Emily Goncalves is a board-certified adult psychiatrist who earned her undergraduate degree at Syracuse University and medical degree from the American University of Antigua. She holds an MBA from Plymouth State University focusing on health care administration. She completed her adult psychiatry residency at Delaware Division of Substance Abuse and Mental Health, where she was chief resident and completed her fellowship in consultation liaison psychiatry at Jackson Memorial Hospital/University of Miami. Dr. Goncalves specializes in treating patients with psychiatric disorders with complex medical illnesses, cancer, and also has expertise in reproductive psychiatry. She is experienced in treating mood disorders, anxiety disorders, PTSD, psychosis, substance use disorders, and adult ADHD. Dr. Goncalves had the opportunity to work in various settings with a diverse patient population including veterans, inmates, cancer patients, and perinatal and postpartum patients. Dr. Goncalves provides medication management along with psychotherapy.