Felicitas Koster, DO

Dr. David Wait, MD is American Board of Psychiatry and Neurology certified and a fellow of the American Psychiatric Association. A skilled psychopharmacologist and psychotherapist, he has over 30 years’ experience successfully helping people overcome a diverse range of emotional, psychiatric, and addiction challenges.

David was born in Sioux Falls, South Dakota, and is a graduate of Augustana College. He obtained his MD at the USD School of Medicine. His residency was at the University of Arkansas for Medical Sciences (UAMS) in Little Rock where he was trained in both psychotherapy and biological management of psychiatric challenges.

Following residency training, Dr. Wait continued to work with UAMS and the State of Arkansas in research and program development focusing on implementing and then teaching novel strengths focused care for people with severe mental illness for the first 12 years of his career.

Later, Dr. Wait moved with his wife and three children to Coeur d'Alene, Idaho. He has since been in clinical practice and leadership roles in inpatient, outpatient, and telehealth psychiatric care settings.

Rather than focus primarily on illness or problems, Dr. Wait’s approach is to first evaluate his patients comprehensively, then utilize what’s learned from this to treat and empower them to make and then practice choices that lead to improved health and well-being, using an integrative model that recognizes that mental, physical, social, and spiritual health are one.

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Dr. Matthew Richter has experience practicing in outpatient and inpatient settings, as well as with military and confinement populations. He earned his medical degree from the Uniformed Services University of the Health Sciences and completed a psychiatry residency at Walter Reed National Military Medical Center, followed by a forensic psychiatry fellowship at the National Capital Consortium.

Dr. Richter fosters a safe, non-judgmental space where patients can explore their feelings and experiences freely, met with unconditional positive regard. He prioritizes active listening and deep empathy, ensuring each patient feels heard, understood, and valued as a unique individual throughout their treatment journey.

Initial sessions focus on a collaborative exploration of a patient’s history, current challenges, and core values, forming the foundation for a personalized treatment plan. Dr. Richter emphasizes shared decision-making, integrating therapeutic modalities—including medication when appropriate—while honoring patient autonomy and aligning with their vision for well-being.

Dr. Regina Fu is a board-certified psychiatrist who began her interest in Psychiatry while studying Psychobiology at UCLA. After completing her General Psychiatry residency at University of Rochester, she emphasizes a holistic approach to mental health treatment using the biopsychosocial foundation. Her approach to patient care combines evidence-based medicine while recognizing the individual factors that can influence well-being. She has a special interest in Cultural Psychiatry and prioritizes providing personalized and effective care to a diverse patient population.

Dr. O'Brien is a board-certified adult psychiatrist who completed his medical education at Northeast Ohio Medical University. Following his graduation from NEOMED, he completed a residency in Psychiatry and Behavioral Medicine at West Virginia University/Charleston Area Medical Center. Throughout his training, he has enjoyed working in both outpatient and hospital settings and has a great passion for medical education and teaching the next generation of mental healthcare providers. Dr. O'Brien's practice focuses on medication management for a wide variety of mental health diagnoses, including anxiety disorders, depression, Bipolar Disorders, Obsessive Compulsive Disorder, Tic Disorders, and Post Traumatic Stress Disorder. In addition to medication, he offers a mixture of Cognitive Behavioral Therapy, Dialectical Behavioral Therapy, and Psychodynamic Therapy during 30 minute follow up appointments. Dr. O'Brien believes in a truly collaborative and holistic approach to mental healthcare, striving to involve patients and all members of the healthcare team in every aspect of care.‍

Dr. Solomon’s presence at Talkiatry brings her career full circle and back to her greatest joy as a psychiatrist – working directly with patients one-on-one to help them integrate the complexity of their feelings, beliefs and personal reality in the context of an increasingly complicated world around them.

Her qualifications include a B.A. in biology from Harvard University and an M.D. from Tufts School of Medicine. She completed psychiatry residencies at Mt. Sinai and Brown and is board certified in both Psychiatry and Addiction Medicine. Her four decades of practice have exposed her to an eclectic range of cultures, ethnicities and pathologies in a wide variety of settings, from solo practice to regional medical centers to academic institutions. Her breadth and depth of clinical and life experience have helped her to transcend cultural biases and institutional conventions and to more clearly see each patient as a uniquely complex and lovable individual.

Dr. Solomon takes a compassionate, individualized, and pragmatic approach to treatment, beginning in the first visit with a full history and discussion with the patient of their symptoms, challenges, and goals. Follow-up visits are tailored to the patient’s evolving needs and combine shared insights and tools such as medications and behavioral practices to outfit them as she guides them in their unique journey toward their best life on their terms.

Dr. Steven Mathew is a trained adult and child and adolescent psychiatrist. He recently completed his child and adolescent psychiatry fellowship at the University of Miami/Jackson Health System, where he served as chief fellow. He completed his general psychiatry residency at Pine Rest Christian Mental Health Services in Grand Rapids, Michigan. Dr. Mathew earned his Doctor of Osteopathic Medicine from the Philadelphia College of Osteopathic Medicine’s Georgia campus, a satellite campus located in the Atlanta metro area. He graduated from the University of Georgia with a Bachelor of Science in Biology and afterwards obtained a Master of Public Health in Health Policy and Management.

Dr. Mathew has had extensive clinical experiences caring for patients across the lifespan in specialty inpatient units, partial hospitalization programs, emergency psychiatry, outpatient clinics, consult liaison psychiatry, and telemedicine. He has clinical expertise in treating depression, anxiety, trauma, OCD, ADHD, and tic disorders.

Dr. Mathew's treatment approach combines evidence-based medication management with supportive therapy, emphasizing empathy, collaboration, and goal-oriented care tailored to each patient and family.

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