Dr. Nissen is a board certified psychiatrist and Diplomate of the American Board of Psychiatry and Neurology. He started his concierge clinic after seeing patients and families disillusioned with the behavioral healthcare model commonly available: short, infrequent, med-focused visits with minimal impact. Nissen Clinic was created to provide personalized, holistic treatment to create real change. Dr. Nissen is passionate about the mind-body connection and takes a bio-psycho-social approach with each person, implementing evidence-based biological (e.g., medical, sleep, diet, exercise), psychological (e.g., therapy, exposure, learning) and social (e.g., relationships, career, spiritual) interventions. ​Dr. Nissen attended Brown University's Warren Alpert Medical School and trained in p ...
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Master’s degree in Medicine at the Faculty of Medicine, University of Porto (2013). Specialist training in Psychiatry at Magalhães Lemos Hospital in Porto (2021). Member of the Cognitive-Behavioural Therapy Unit at Magalhães Lemos Hospital, providing CBT appointments to patients with anxiety and depressive disorders (2020-2021). Clinical experience as a Psychiatrist at Dr. Nélio Mendonça Hospital and Marmeleiros Hospital (SESARAM) in Funchal, working at the Emergency department, in Liaison Psychiatry (inpatient wards, outpatient clinic) and at the General Psychiatry outpatient clinic (2022-2023). Currently working only in private practice (General Psychiatry appointments, Sleep Medicine and CBT-I appointments). Specifically in Sleep Medicine: Short observership in Sleep Medicine at ...
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Dr. Andrés Román Jarrín is a distinguished psychiatrist and the only therapist in Ecuador specialized in Cognitive Behavioral Therapy for Insomnia (CBT-I). His solid training and international experience, which includes Europe and the United States, reflect his commitment to high-quality care and the well-being of his patients. He graduated as a Doctor of Medicine from the Catholic University of Santiago de Guayaquil and completed a specialization in Adult Psychiatry at the University Clinic of Navarra in Spain, where he also collaborated as a lecturer. His career continued in the United States, where he completed a fellowship in Child and Adolescent Psychiatry at the University of Pittsburgh Medical Center, further enriching his therapeutic approach with cutting-edge practices. Dr. ...
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