School of Medicine
Showing 151-200 of 632 Results
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Walter Park
Professor of Medicine (Gastroenterology and Hepatology)
Current Research and Scholarly InterestsDr. Park's research interests are in the diagnosis and management of pancreatic cysts, acute and chronic pancreatitis. His approach incorporates methods in health services research including the use of observational datasets, cost-effectiveness studies, and the development of clinical cohorts.
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Karen J. Parker, PhD
Truong-Tan Broadcom Endowed Professor and Professor, by courtesy, of Comparative Medicine
Current Research and Scholarly InterestsThe Parker Lab conducts research on the biology of social functioning in monkeys, typically developing humans, and patients with social difficulties.
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Robertson Parkman
Other Teaching Staff-Hourly, Pediatrics - Stem Cell Transplantation
BioMy principal research interests have been the assessment of the immunological consequences of hematopoietic stem cell transplantation including both acute and chronic graft versus host disease and immune reconstitution and the use of hematopoietic stem cell transplantation to treat genetic diseases. My laboratory was the first to suggest that chronic graft versus host disease was an autoimmune disease directed at histocompatibility antigens shared by donors and recipients. The observation leaded to the assessment of the role of thymic dysfunction in the pathogenesis of chronic graft versus host disease. As a pediatric immunologist I have investigated the role of hematopoietic stem cell transplantation initially in the treatment of primary immune deficiency diseases and later the treatment of metabolic diseases, which lead to my involvement in the early gene transfer clinical trials.
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Ugur Parlatan
Basic Life Research Scientist, Rad/Canary Center at Stanford for Cancer Early Detection
BioDr. Ugur Parlatan is a Basic Life Research Scientist at the Canary Center at Stanford for Cancer Early Detection. Trained as a physicist, he leads photonics laboratory activities and develops optical spectroscopy and imaging approaches for molecular fingerprinting and characterization of extracellular vesicles (EVs). His work includes designing and optimizing measurement workflows, analyzing EV signatures from biomedical samples, and supporting disease-focused studies across cancer and metabolic conditions (including lung cancer, glioblastoma, pancreatic cancer, diabetes, and hepatotoxicity). He also mentors trainees (including NIH CREST program interns) and contributes to manuscripts and grant applications.
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Gaurav Parmar, MD, MPH
Clinical Assistant Professor, Surgery - Vascular Surgery
Current Research and Scholarly InterestsMy research focuses on improving the diagnosis, treatment, and prevention of vascular disease through clinical and translational investigation. Areas of interest include arterial and venous thrombosis, thoracic aortic disease, peripheral artery disease, vascular imaging, and implementation of evidence-based care models. I am particularly interested in multidisciplinary vascular care, clinical trials, outcomes research, and reducing cardiovascular disparities.
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Jane Parnes
Professor of Medicine, Emerita
Current Research and Scholarly InterestsThe lab is studying the mechanisms controlling B cell responsiveness and the balance between tolerance and autoimmunity. B cells deficient in CD72 are hyperresponsive to stimulation through the B cell receptor. We are examining the alterations in B cell signaling in these B cells and the mechanisms by which CD72 deficiency partially abrogates anergic tolerance. We hope to learn how deficiency in CD72 leads to spontaneous autoimmunity and increased susceptibility to induced autoimmune disease.
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Shyon Parsa
Affiliate, Department Funds
BioShyon earned his B.S. in Biomedical Engineering from the Cockrell School of Engineering at the University of Texas - Austin, graduating with Honors. He completed coursework in Thermodynamics and Transport Phenomena in Living Systems at the Department of Applied Mathematics and Theoretical Physics at Cambridge University under Clare Hall fellow Dr. Kenneth Diller. After graduation, Shyon enrolled in medical school at UT Southwestern, and graduated with an M.D with Distinction in Research and as a member of the Alpha Omega Alpha (AOA) honor society.
He started his internal medicine residency at Stanford University Hospital in 2023. In 2024, he was awarded a Stanford Cardiovascular Institute Seed Grant for his project "An Artificial Intelligence Approach Utilizing Radiomic-Derived Calcium Features on Calcium Scoring CT (CAC-CT) in Cardiovascular Risk Stratification" (Co-PI). In 2025, he was selected for a Young Investigator Award from the National Lipid Association and named as an American Heart Association Early Career Investigator Award finalist. His works have been highlighted in the New England Journal of Medicine AI, Journal of the Academic College of Cardiology, and Journal of the American Heart Association.
His interests include the development of AI-enabled ECG models, the implementation and evaluation of AI tools in clinical workflows, and policy surrounding the responsible use of AI in health systems. He is pursuing a career in cardiology with a focus on electrophysiology, medical device development, and policy. -
Susan Parson
Clinical Assistant Professor (Affiliated), Pathology Clinical
Santa Clara County Office Of The Medical Examiner, Pathology Operations supported expensesBioAssistant Medical Examiner (Forensic Pathologist)
Santa Clara County Office of the Medical Examiner
850 Thornton Way
San Jose, CA 95128
(408) 793-1900
https://mec.santaclaracounty.gov/home -
Julie Parsonnet
George DeForest Barnett Professor of Medicine, Emerita
Current Research and Scholarly InterestsI am an infectious diseases epidemiologist who has done large field studies in both the US and developing countries. We research the long-term consequences of chronic interactions between the human host and the microbial world. My lab has done fundamental work establishing the role of H. pylori in causing disease and understanding its epidemiology. Currently, our research dissects how and when children first encounter microbes and the long term effects of these exposures on health.
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Sonia Partap
Clinical Professor, Pediatric Neurology
Clinical Professor (By courtesy), Neurosurgery
Clinical Professor (By courtesy), PediatricsCurrent Research and Scholarly InterestsMy research interests involve the epidemiology, treatment and diagnosis of pediatric and young adult brain tumors. I am also interested in long-term neurologic effects and designing clinical trials to treat brain and spinal cord tumors.
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Gopanandan Parthasarathy
Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology
BioDr Nandan Parthasarathy is a hepatologist and physician-scientist in the Department of Gastroenterology and Hepatology at Stanford University.
After obtaining his medical degree in JIPMER, India, he completed a 2 year clinical research fellowship at Mayo Clinic, following which he completed his residency training at Cleveland Clinic, and GI and transplant hepatology fellowships at Mayo Clinic. During his fellowship, his research work was focused on exploring the immune mechanisms of liver injury in metabolic dysfunction associated steatohepatitis.
Clinically, he is focused on taking care of patients with MASH, cirrhosis and liver cancer.
His career goal is to study the immune system-liver injury axis, leveraging mechanistic, translational and AI approaches, in order to improve the care of patients with liver disease. -
Preethy Parthiban
Postdoctoral Scholar, Neonatal and Developmental Medicine
BioMy research centers on how the innate immune system shapes tissue remodeling in health and disease. During my PhD, I uncovered a key role for resident macrophages in driving cardiac fibrosis, identifying a macrophage-derived chemokine that directly activates cardiac fibroblasts. Building on this foundation, my postdoctoral work at Stanford focuses on neutrophil–macrophage crosstalk in disrupted alveolarization in neonatal mice and patients. By integrating cellular, molecular, and translational approaches, I aim to define how innate immune pathways orchestrate extracellular matrix remodeling. Ultimately, my goal is to identify critical therapeutic targets that improve outcomes in ECM-related diseases.
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Josef Parvizi, MD, PhD
Professor of Neurology and Neurological Sciences (Adult Neurology) and, by courtesy, of Neurosurgery
BioDr. Parvizi completed his medical internship at Mayo Clinic, neurology training at Harvard, and subspecialty training in clinical neurophysiology and epilepsy at UCLA before joining the Department of Neurology and Neurological Sciences at Stanford in 2007. Dr. Parvizi directs the Stanford Program for Medication Resistant Epilepsies and specializes in surgical treatments of intractable focal epilepsies. Dr. Parvizi is the principal investigator in the Laboratory of Behavioral and Cognitive Neuroscience, where he leads a team of investigators to study the human brain. http://med.stanford.edu/parvizi-lab.html.
Epilepsy patient story: https://www.youtube.com/watch?v=HXy-gXg0t94&t=3s -
Sergiu P. Pasca
Kenneth T. Norris, Jr. Professor of Psychiatry and Behavioral Sciences and Bonnie Uytengsu and Family Director of the Stanford Brain Organogenesis Program and Senior Fellow, by courtesy, at the Hoover Institution
Current Research and Scholarly InterestsA critical challenge in understanding the intricate programs underlying development, assembly and dysfunction of the human brain is the lack of direct access to intact, functioning human brain tissue for detailed investigation by imaging, recording, and stimulation.
To address this, we are developing bottom-up approaches to generate and assemble, from multi-cellular components, human neural circuits in vitro and in vivo.
We introduced the use of instructive signals for deriving from human pluripotent stem cells self-organizing 3D cellular structures named brain region-specific spheroids/organoids. We demonstrated that these cultures, such as the ones resembling the cerebral cortex, can be reliably derived across many lines and experiments, contain synaptically connected neurons and non-reactive astrocytes, and can be used to gain mechanistic insights into genetic and environmental brain disorders. Moreover, when maintained as long-term cultures, they recapitulate an intrinsic program of maturation that progresses towards postnatal stages.
We also pioneered a modular system to integrate 3D brain region-specific organoids and study human neuronal migration and neural circuit formation in functional preparations that we named assembloids. We have actively applied these models in combination with studies in long-term ex vivo brain preparations to acquire a deeper understanding of human physiology, evolution and disease mechanisms.
We have carved a unique research program that combines rigorous in vivo and in vitro neuroscience, stem cell and molecular biology approaches to construct and deconstruct previously inaccessible stages of human brain development and function in health and disease.
We believe science is a community effort, and accordingly, we have been advancing the field by broadly and openly sharing our technologies with numerous laboratories around the world and organizing the primary research conference and the training courses in the area of cellular models of the human brain. -
Magdalini Paschali
Postdoctoral Scholar, Radiology
Current Research and Scholarly InterestsMy research focuses on utilizing machine learning models to enhance the understanding, diagnosis, and treatment of clinical disorders. I am interested in multi-modal learning, combining imaging data like MRI and CT scans with non-imaging data such as electronic health records, creating more holistic and accurate diagnostic models. I am also interested in the robustness of deep neural networks under domain shifts, investigating how models perform when faced with changes in input data distributions.
Finally, I am interested in early biomarker identification using AI model interpretability, to enable the early detection and targeted treatment of chronic disorders. -
Alok Patel
Clinical Associate Professor, Pediatrics
BioAlok Patel is a pediatric hospitalist, medical journalist, on-camera expert, producer, and devotee of creative, engaging science communication tactics. He currently serves as the Faculty Director of Communications for the Department of Pediatrics. Through this role, he helps coordinate creative media strategies for awareness, education, advocacy, recruitment and more.
Dr. Patel has extensive experience in broadcast journalism, on-camera work, script writing, podcast hosting, media consulting, and designing social media campaigns and hopes to lend these skills to his work in public health messaging. He currently works as a pediatric hospitalist within the department of pediatrics at Lucile Packard Children's Hospital. -
Anisha I Patel
Professor of Pediatrics (General Pediatrics) and, by courtesy, of Epidemiology and Population Health
On Partial Leave from 2026-08-03 To 2027-03-08Current Research and Scholarly InterestsDr. Patel is a physician-scientist with a focus on community-engaged research (CEnR). She works to translate evidence to impact policies that can benefit children facing inequities due to their racial/ethnic background, poverty, and/or geography.
She leads the independently-funded research program, Partnerships for Research in Child Health, which collaborates with community partners to co-develop, implement, and evaluate innovative interventions aimed at preventing obesity and cardiometabolic diseases in low-income, minoritized populations. Over the past 10 years, Dr. Patel has led numerous studies to encourage healthy beverage intake among children and adolescents. These studies include analyses of large national data sets, conduct of randomized controlled trials in schools, child care, and community settings to examine how interventions to increase children’s intake of water instead of sugar-sweetened beverages impact child health, and the evaluation of policy efforts to improve the healthfulness of beverages offered in schools and community settings.
Long before the Flint water crisis, Dr. Patel was working with partners to address nitrate and arsenic contamination in drinking water supplies in California’s San Joaquin Valley, a rural region home to many low-income Latinx farm-working families. She secured funding from the National Institute of Child Health and Human Development to collaborate with researchers, nonprofits, water utilities, families, and advocates to develop innovative solutions to drinking water contamination in the region, helping to lead to the Agua4All program. The Agua4All initiative increased access to safe drinking water by installing filtered water stations in schools and community sites. The program’s success led to its national expansion and informed a $16.3 million-dollar water in schools grant program as well as California legislation to improve safe water access in public schools. Dr. Patel’s work with collaborators and communities was recognized by First Lady Michelle Obama’s Drink Up campaign and featured in Stanford Medicine’s award-winning magazine.
As an expert in CEnR, Dr. Patel leads initiatives at Stanford. She is Director of the Office of Community-Engaged Research at Stanford's Maternal and Child Health Research Institute. In this role, she is helping to lead several initiatives, including expanding grant funding for CEnR and implementing capacity-building training programs for both community partners and the Stanford community. She also serves as Associate Dean of Research in Stanford’s School of Medicine, where she works to enhance community engagement across the university. Dr. Patel is a Co-Investigator on Stanford’s Clinical Translational Sciences Award. She also helps lead mentoring of fellows and junior faculty in CEnR.
Dr. Patel has a diverse funding portfolio ranging from the Robert Wood Johnson Foundation Healthy Eating Research Program, the W.K. Kellogg Foundation, and the National Institutes of Health. Dr. Patel has presented her research to local, national and international audiences. She has also been recognized for her research with awards from the American Academy of Pediatrics and the University of North Carolina, Chapel Hill School of Public Health.
