School of Medicine
Showing 3,281-3,300 of 5,032 Results
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Maurice M. Ohayon, MD, DSc, PhD
Professor of Psychiatry and Behavioral Sciences (Sleep Medicine)
Current Research and Scholarly InterestsMain focus is epidemiology of sleep and psychiatric disorders in the general population and clinical settings: 1)sleep habits and patterns; 2) prevalence, diagnosis, co-morbidity, treatment and Public Health impact of sleep disorders; 3) pain, posttraumatic stress disorder, social phobia, panic disorder and generalized anxiety; 4) epidemiology of narcolepsy and hypersomnia.
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David E. Oji
Clinical Assistant Professor, Orthopaedic Surgery
BioDr. David Oji is a board certified and fellowship trained orthopaedic surgeon specializing in the operative and non-operative treatment of all aspects of foot and ankle disorders. After finishing his orthopaedic surgery residency at The Johns Hopkins Hospital, he did his fellowship at Union Memorial Hospital in Baltimore, Maryland under the leadership of Dr. Lew Schon, the former president of the American Orthopaedic Foot and Ankle Society. There he underwent advanced training in the forefront of foot and ankle surgery including total ankle replacements, use of stem cells to promote healing of acute and chronic conditions, non-fusion techniques of great toe arthritis, and complex ankle and foot reconstruction.
During his training, he assisted in treating the Baltimore Orioles and amateur ballet dancers. Dr. Oji also took part in conducting advanced biomechanical and clinical research and has written chapters in textbooks with topics ranging from arthroscopic treatment of talar cartilage defects to the diabetic foot.
After fellowship, he was in private practice working closely with the community as the team physicians for many of the local high school sports teams.
In June of 2017, Dr. Oji joined the Department of Orthopaedic Surgery at Stanford University School of Medicine as a Clinical Assistant Professor. In addition to his usual clinical and educational responsibilities, he is also one of the team physicians for Stanford University Athletic programs.
Since starting at Stanford, he has been on the forefront of ankle and foot surgery. He has performed the first out patient total ankle replacement and the first total talar replacement at Stanford. He is an advocate of minimally invasive ankle and foot surgery performing one of the first MIS (minimally invasive surgery) bunion surgeries in the Bay Area. Whenever possible, the smallest incision and the least invasive approach will be done to allow the patient to heal faster including tendosopy, small joint arthroscopy, endoscopic Haglund's resection, minimally invasive osteotomy, and minimally invasive great toe cheilectomy.
He has a special focus in the treatment of ankle and foot orthopaedic sports injuries such as chronic ankle instability, cartilage injuries, Achilles injuries, using surgery only as a last resort to return the patient to peak athletic form.
In addition, he has extensive experience in complex ankle and foot reconstruction such as ankle replacements, flatfeet reconstruction, fusions of the foot and hindfoot, and Charcot foot/ankle reconstruction. -
Fernando Fabian Okonski
Clinical Assistant Professor, Anesthesiology, Perioperative and Pain Medicine
BioDr. Okonski is an anesthesiologist specializing in pediatric anesthesia, regional anesthesia and acute pain management. He comes to Stanford after two decades of experience working in a tertiary care private practice where he led the pediatric anesthesia team. Additionally, he was part of the adult cardiac anesthesia, echocardiography, regional anesthesia, and acute pain management teams.
Outside the hospital, global medicine is a priority, and Dr. Okonski has travelled extensively on medical mission trips throughout the globe. Finally, he has a special interest in marine mammal medicine, and he works regularly with veterinarians at the Marine Mammal Center in Sausalito providing anesthesia and research support for perioperative care of pinnipeds and cetaceans. -
Caroline Okorie
Clinical Associate Professor, Pediatrics - Pulmonary Medicine
BioDr. Okorie is board certified in pediatric pulmonology, sleep medicine and general pediatrics and joined the Division of Pediatric Pulmonary, Asthma and Sleep Medicine in 2018. She obtained her medical degree and Master’s in Public Health at the University of Arizona before going on to a residency and chief residency in pediatrics at Oregon Health & Science University. She completed her fellowship training in both pediatric pulmonary medicine and sleep medicine at Stanford University. She has a passion for medical education and serves as an Associate Program Director for the Pediatric Residency Program at Stanford.
She treats children with a variety of lung diseases, including: asthma, chronic cough, cystic fibrosis, chronic respiratory failure, and chronic lung disease of prematurity. Her additional training in sleep medicine allows her expertise to treat sleep disorders, including: sleep disordered breathing, parasomnias, narcolepsy, restless legs syndrome, and insomnia. -
Derick Okwan
Assistant Professor of Pathology
Current Research and Scholarly InterestsBroadly, the Okwan lab’s primary interest is to understand how and why the immune system contributes to nearly all chronic diseases. The immune system of the modern human has evolved from a history of stress to the species: famines, continual bouts of lethal pandemics, as well as major climate/environmental and migratory changes that exposed the immune system to novel threats. At the forefront of these challenges are innate immune cells, particularly neutrophils, the most abundant leukocytes. For the first time in human history – at least in the western world- we live in an era of abundance. The Okwan lab is interested in understanding how this traumatic history creates a functional mismatch for the neutrophil, which we believe underpins their roles in chronic diseases of the modern era: cancer, cardiovascular disease, neurodegeneration, and autoimmune disorders. Rather than wholesale depletion of neutrophils and innate immune cells, we seek to identify novel approaches to leverage these cells to combat various diseases.
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Eric Olcott
Professor of Radiology (Veterans Affairs), Emeritus
Current Research and Scholarly InterestsBody imaging utilizing CT, ultrasound and MRI. Imaging of appendicitis. Imaging of pancreatic and biliary malignancies. Imaging of trauma. Magnetic resonance angiography.
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Donald M. Olson
Associate Professor of Neurology at the Stanford University Medical Center, Emeritus
Current Research and Scholarly InterestsEpilepsy in children and adolescents. Particular interest in clinical neurophysiology (EEG and video EEG), differential diagnosis of seizures in children, and selection of patients who will benefit from epilepsy surger.
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Nichole Olson
Clinical Associate Professor, Psychiatry and Behavioral Sciences
BioDr. Nichole Olson is a Clinical Assistant Professor and licensed psychologist in the INSPIRE Clinic and Dialectical Behavior Therapy (DBT) program at Stanford. Dr. Olson completed her masters and doctorate degrees at Northwestern University in Chicago and finished her postdoctoral fellowship at Stanford University. Dr. Olson specializes in evidence-based, recovery-oriented care for individuals with psychosis, providing both individual and group Cognitive Behavioral Therapy for Psychosis (CBTp) to adults within the INSPIRE Clinic. In addition, Dr. Olson leads trainings and ongoing consultation for providers learning to implement CBTp. As a clinician and Assistant Director of Stanford’s DBT program, Dr. Olson also provides individual DBT treatment for those with emotion regulation difficulties.
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Antonio Omuro, MD
Joseph D. Grant Professor
BioDr. Antonio M. Omuro, MD, FAAN, is the Chair of the Department of Neurology and Neurological Sciences at Stanford University School of Medicine.
Dr. Omuro is an internationally renowned neurologist and neuro-oncologist. Before assuming his role at Stanford, he held notable leadership positions at prestigious institutions including Yale University and Memorial Sloan Kettering Cancer Center. His research endeavors are concentrated on clinical and translational studies, where he collaborates closely with basic scientists to pioneer innovative therapies for challenging neuro-oncologic diseases such as gliomas and primary CNS lymphomas. He is also a highly esteemed educator and practicing clinician, delivering state-of-the-art and compassionate care to patients with brain tumors and neurological complications of cancers. -
Yoshikazu Ono
Visiting Instructor/Lecturer, Cardiothoracic Surgery
BioYoshikazu Ono is a pediatric cardiovascular surgeon who is board certified by The Japanese Board of Cardiovascular Surgery.
He graduated from Nagoya City University in 2015 and began his internship at Nagoya City East Medical Center. He then completed his residency in cardiovascular surgery at the National Cerebral and Cardiovascular Center. He completed a fellowship in pediatric cardiovascular surgery at the same institution after a three-year residency.
His main interests are congenital cardiac defects and mechanical support in children. He is dedicated to improving the safety and durability of surgical treatments and ventricular assist devices for these patients. -
John Openshaw
Assistant Professor of Medicine (Infectious Diseases and Geographic Medicine)
Current Research and Scholarly InterestsMy research laboratory addresses questions at the intersection of infectious diseases and environmental change. We use field, laboratory, and computational approaches and our work ranges from basic epidemiologic and risk-factor studies to serologic surveys to developing new data collection tools and pathways.
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Marily Oppezzo
Senior Research Scholar, Medicine - Med/Stanford Prevention Research Center
BioDr. Oppezzo is an Instructor of Medicine at the Stanford Prevention Research Center and head of the nutrition pillar at Stanford Lifestyle Medicine. She is a behavioral and learning scientist, dietitian, and exercise science interventionist. She earned her PhD in Educational Psychology from Stanford University, and holds a Master’s degree in Nutritional Science, and is board certified Lifestyle Medicine Professional.
Dr. Oppezzo's work combines her extensive training in nutrition, exercise science, and behavioral science to develop innovative interventions that empower individuals to adopt sustainable, healthy habits - integrating them into their already busy lives. With a focus on "minimal dose, maximal gains" she explores the best ways for people to adopt small, actionable changes for significant improvements in health and well-being. She is particularly interested in the impact of "exercise snacks"—short, accessible bouts of physical activity—on productivity, mood, and overall health. One of her key interventions, "Stronger," is designed to provide peri- and post-menopausal women with effective strength training that maximizes benefits while minimizing time commitment. -
Chi Mong Christopher Or
Clinical Assistant Professor, Ophthalmology
BioDr. Or is a board-certified ophthalmologist and family medicine physician. He received advanced uveitis training through the uveitis and medical retina fellowship at Stanford University School of Medicine. Prior to residency, he also completed a fellowship in optical coherence tomography (OCT) research at the New England Eye Center. Dr. Or treats patients at the Byers Eye Institute at Stanford Health Care and Menlo Medical Clinic in Menlo Park. He is also a clinical assistant professor in the Department of Ophthalmology at the Stanford University School of Medicine.
Dr. Or treats many eye diseases, including age-related macular degeneration, cataracts, and uveitis. He emphasizes using imaging to diagnose and monitor the progression of eye conditions.
His research interests include eye imaging methods such as OCT and OCT angiography (OCTA). Dr. Or has studied these imaging techniques for years, first as a research assistant, then as a fellow, and now as a principal investigator. He has studied using these imaging techniques for diagnosing and monitoring age-related macular degeneration, diabetic retinopathy, and uveitis.
He is actively involved in clinical trials for optical imaging and serves as principal investigator in clinical trials assessing different medications to treat eye diseases.
Dr. Or has published numerous peer-reviewed articles on topics such as optical imaging, autoimmune eye diseases, and vascular eye diseases. His research has appeared in prestigious journals including Clinical Ophthalmology, Ocular Immunology and Inflammation, Retina, the American Journal of Ophthalmology, and many other ophthalmology journals worldwide.
He is a member of the American Academy of Ophthalmology, the American Society of Retina Specialists, and the Association for Research in Vision and Ophthalmology (ARVO). Dr. Or has presented his research at various national and international meetings. -
Nnamdi Orakpo, MD, PhD
Clinical Assistant Professor, Psychiatry and Behavioral Sciences - Sleep Medicine
BioNnamdi Orakpo's path to becoming a bilingual Sleep Medicine Psychiatrist & Interventional Psychiatrist was far from conventional. Originally, he was focused on a professional basketball career in Australia and New Zealand. However, his father's guidance led him to pursue higher education.
At the University of North Texas, Dr. Orakpo completed a doctorate in Gerontology before attending medical school in Mexico and completing his residency in Psychiatry at Garnet Health Medical Center in New York. He graduated from Sleep Medicine fellowship training at Stanford University, Department of Psychiatry, Division of Sleep Medicine in Sleep Medicine (2023), where he is currently serving as a Clinical Assistant Professor.
Dr. Orakpo has published numerous articles in SLEEP, Frontiers Journal of Psychiatry, Frontiers Journal of Human Neuroscience, Journal of Clinical Sleep Medicine, and has collaborated with Stanford University colleagues on a textbook on clinical sleep medicine, where he authored the chapters on chronic insomnia, isolated sleep paralysis, sleep enuresis, sleep related eating disorder, sexsomnia, and exploding head syndrome. His research and clinical practice have centered around Sleep Medicine and Sleep Psychiatry. He conducted a pioneering study on using Virtual Reality Neurofeedback as a treatment for chronic pain and insomnia. This work was supported by an institutional grant and has contributed to the field of sleep medicine.
Beyond his clinical work, Dr. Orakpo is an active researcher and educator. He recently published and co-authored commentary in the Journal of Clinical Sleep Medicine on pharmacological management of sleep apnea and obesity with GLP-1 medications. He is also a member of several professional organizations, including the American Academy of Sleep Medicine, the California Sleep Society, World Sleep Society, and the Nigerian Sleep Society.
