School of Medicine
Showing 151-200 of 635 Results
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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 impairments.
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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, PhD in physics, specializes in optics with a focus on its medical applications, particularly in characterizing extracellular vesicles through molecular fingerprinting. His research aims to advance optical techniques for improved disease diagnostics.
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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
Resident in MedicineBioShyon 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 for Preventive Cardiovascular Medicine Research finalist. He is currently leading the NOTIFY-ASCVD trial alongside Co-PIs Fatima Rodriguez and Fahim Abbasi.
His interests include the use of AI in opportunistic coronary artery disease assessment, clinical integration of AI-based diagnostic algorithms through clinical trials, and preventive health advocacy through public policy. He plans to pursue a career in cardiology with a focus on advanced computational imaging techniques, medical device development, and advocacy both in his local communities and abroad. -
Susan Julia Parson
Clinical Assistant Professor (Affiliated), Pathology Clinical
Staff, Pathology Operations supported expensesBioAssistant Medical Examiner-Coroner / Forensic Pathologist
Santa Clara County Office of the Medical Examiner-Coroner
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), NeurosurgeryCurrent 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 Instructor, 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 gut-immune system-liver injury axis in order to bring novel therapeutics from the bench to bedside in 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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Akshay Paruchuri
Postdoctoral Scholar, Psychiatry
BioI'm currently a postdoctoral scholar in the Stanford Translational AI (STAI) lab led by Professor Ehsan Adeli. I earned my PhD in computer science at UNC Chapel Hill under the advisement of Professor Henry Fuchs. My research interests are at the intersection of health AI, computer vision, and machine learning. Currently, I'm working toward a future where next-generation healthcare systems improve the entire patient journey, from advanced diagnostic imaging and surgical support to all-day health monitoring and management, to achieve better therapeutic outcomes for cancer and aging-related diseases. I'm generally interested in opportunities that would allow me to continue to deepen my research expertise while leading and working on projects with meaningful, positive real-world impact, especially with respect to areas such as healthcare and environmental sustainability.
Previously, I was a visiting researcher at IDSIA USI-SUPSI working with Professor Piotr Didyk on the interpretability of multimodal language models (MLMs) with respect to capabilities such as visual perception. I've published in leading venues on topics such as remote health sensing (WACV, NeurIPS), 3D reconstruction (ECCV, MICCAI), LLM-based conversational agents for personal health (EMNLP, Nature Communications), and energy-efficient operation of smart glasses (ISMAR). I've done internships at Google AR/VR, Google Consumer Health Research, and Kitware. -
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 -
Melissa Ann Pasao
Affiliate, Emergency Medicine
BioMelissa Pasao came to Stanford Emergency Medicine in November 2020 from UCLA with a Bachelors of Science in Neuroscience, and now with over three years of experience coordinating multi-site emergency medicine research studies, managing complex datasets and diverse teams, and ensuring regulatory compliance, Melissa’s role as a Health Services Research Program Coordinator has evolved to continuously leverage her project management expertise in support of impactful research initiatives. Recently obtaining her Project Management Professional Certification and with her continued passion for public health and equitable healthcare, Melissa continues to apply her skills and experience to contribute to the cutting-edge research being done with our health services research faculty and collaborators.
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Anca M. Pasca, MD
Assistant Professor of Pediatrics
On Partial Leave from 01/05/2026 To 04/19/2026Current Research and Scholarly InterestsThe research focus of the lab is to understand molecular mechanisms underlying neurodevelopmental disorders associated with premature birth, neonatal and fetal brain injury with the long-term goal of translating the lab’s findings into therapeutics. The research team employs a multidisciplinary approach involving genetics, molecular and developmental neurobiology, animal models and neural cells differentiated from patient-derived induced pluripotent stem (iPS) cells. In particular, the lab is using a powerful 3D human brain-region specific organoid system developed at Stanford (Nature Methods, 2015; Nature Protocols, 2018) to ask questions about brain injury during development.
https://www.neopascalab.org/ -
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
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. -
Ryan Pate, MD, MS
Clinical Assistant Professor, Psychiatry and Behavioral Sciences
BioDr. Ryan Pate is board-certified in both general psychiatry and geriatric psychiatry. He completed his general adult psychiatry training at Dartmouth-Hitchcock and pursued his geriatric psychiatry fellowship at Stanford Health Care. In addition to his psychiatry training, he is actively participating in the psychoanalytical psychotherapy fellowship offered by the Palo Alto division of the San Francisco Center for Psychoanalysis. Dr. Pate's research interests primarily focus on providing support for caregivers and developing group interventions tailored to older adults with mental health disorders. At Stanford, his professional practice primarily takes place in an outpatient setting, where he conducts appointments that involve a combination of medication management and psychotherapy interventions. Beyond his clinical work, Dr. Pate is dedicated to medical education.
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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
Current 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. -
Chirag Patel, MD, PhD
Member, Cardiovascular Institute
Current Research and Scholarly InterestsNeuro-oncology, Clinical Trials, Tumor Treating Fields (TTFields), Molecular/PET Imaging, Neuroimaging, Immunotherapy, Big Data Analysis
