School of Medicine


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  • Leonardo Tozzi

    Leonardo Tozzi

    Casual - Non-Exempt, Psych/Major Laboratories and Clinical & Translational Neurosciences Incubator

    BioLeonardo Tozzi, M.D., Ph.D., graduated as a Medical Doctor from Pisa University and Sant'Anna School of Advanced Studies in 2013. In 2018, he was awarded his Ph.D. from Trinity College Dublin for his research on the impact of genetic risk factors, epigenetic modifications and environmental stressors on structural and functional brain changes related to depression.

    Leonardo joined Stanford in 2018 as a post-doctoral researcher working within the framework of the Human Connectome Project. Since 2022, he leads the Computational Neuroscience & Neuroimaging Program at the Stanford Center for Precision Mental Health and Wellness.

    The goal of Leonardo's research is to develop quantitative biomarkers for psychiatry that are reliable, interpretable and can be used to guide treatment selection and estimate therapy response. To this end, he integrates behavioral measures and symptoms with large scale recordings of brain structure and function as well as other biological markers.

    In his free time, Leonardo enjoys practicing martial arts, playing video-games and road tripping around the USA.

  • Michael Tracy

    Michael Tracy

    Clinical Associate Professor, Pediatrics - Pulmonary Medicine

    BioDr. Tracy is a Clinical Associate Professor in the Division of Pediatric Pulmonary. His clinical interests include care for children with bronchopulmonary dysplasia (BPD), chronic respiratory failure, mechanical ventilation, childhood interstitial lung disease, and cystic fibrosis. He serves as the director Pediatric Pulmonary BPD Program, and co-director of the Cardiac and Respiratory care for Infants with BPD (CRIB) Program. He is the medical director of the Stanford Technology Assisted Respiratory (STAR) Program and the physician lead for the inpatient Pulmonary consult service at LPCH. Dr. Tracy is currently involved in clinical research to improve care for infants with BPD. With regard to medical education, he was formerly a chief resident in pediatrics at LPCH, and served as a faculty coach in the pediatric residency program.

  • Nicholas Trakul, MD, PhD

    Nicholas Trakul, MD, PhD

    Clinical Associate Professor, Radiation Oncology - Radiation Therapy

    BioDr. Nicholas Trakul is a radiation oncologist with Stanford Medicine Cancer Center and clinical associate professor of Radiation Oncology-Radiation Therapy with Stanford School of Medicine. Dr. Trakul serves as Medical Director for Stanford Medicine Radiation Oncology in Pleasanton and for the Stanford Medicine I Sutter Health Cancer Collaborative in Castro Valley.

    Dr. Trakul completed residency training at Stanford in 2013 and then joined the faculty at the University of Southern California, where he specialized in head and neck and central nervous system malignancies, with an emphasis on stereotactic radiosurgery (SRS) and stereotactic ablative radiotherapy (SABR/SBRT). He is widely published as first author in peer-reviewed journals. His research focus involves the creation of novel clinical databases as well as outcomes in the treatment of head and neck, gastrointestinal and thoracic malignancies. In 2017, Dr. Trakul returned to Stanford Medicine, becoming the Medical Director of Stanford Medicine Radiation Oncology in Pleasanton. In 2020, he was named Medical Director of Stanford Radiation Oncology Network Sites. In February 2022, Dr. Trakul assumed the medical directorship of Eden Radiation Oncology Center, the first site to become operation under the Stanford/Sutter Cancer Collaborative. He is focused on providing access to high quality radiation therapy, collaboration with community health care systems and creating/maintaining productive and high engagement workplace culture. He believes in providing personalized, high-quality care, and bringing new technology to the East Bay, allowing patients to access cancer care while staying connected to their communities and support networks.