Stanford University
Showing 1-100 of 177 Results
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Aijaz Ahmed, MD
Professor of Medicine (Gastroenterology and Hepatology)
BioDr. Ahmed is an internationally recognized hepatologist with expertise in the treatment of acute and chronic liver diseases. He is a board-certified specialist in gastroenterology and hepatology, transplant hepatology, and obesity medicine. Currently, he serves as the Medical Director of the Adult Liver Transplant Program at Stanford University.
Dr. Ahmed graduated from Dow Medical College, Karachi, Pakistan. He completed his residency training in Internal Medicine at Brown University, Providence, RI and fellowship training in Gastroenterology and Hepatology at Stanford University. During his fellowship, he focused on clinical and research training in General and Transplant Hepatology.
For patients under his care, Dr. Ahmed remains dedicated to creating a personalized, comprehensive, and above-all a compassionate treatment plan. He outlines the diagnostic and follow-up management pathway in an individualized fashion; he updates his patients and their family/support at each step of the decision-making process; and he focuses on prioritizing the wishes of his patients and their family/support for an optimal outcome and quality of life.
Dr. Ahmed remains clinically active and has been instrumental in establishing a wide network of hepatology outreach clinics in remote and underserved regions of California and Nevada.
In addition to his patient care responsibilities, Dr. Ahmed remains committed to the educational mission of Stanford ford University. He remains deeply interested in mentoring trainees and students al levels from undergraduates to trainee physicians and junior colleagues. Dr. Ahmed has received several teaching awards during his career.
Dr. Ahmed’s research interests include 1) multidisciplinary approach to nonalcoholic fatty liver disease (NAFLD), 2) disparities in the management of chronic liver disease, 3) improving screening and management of hepatocellular carcinoma (HCC), and 4) outcomes research in NAFLD, HCC, viral hepatitis, alcoholic liver disease, and liver transplantation. He heads a busy and productive outcomes research team. In addition, he collaborates with basic scientists and is participating in several translational research projects at Stanford University.
He has published his findings in textbooks, abstracts, case reports, and high- profile medical journals including Gastroenterology, Journal of Hepatology, Hepatology American Journal of Gastroenterology, and other well-renowned peer-reviewed publications.
Dr. Ahmed and his team has made presentations to his peers at many national and international conferences: the American Association for the Study of Liver Disease, International Liver Congress, European Association for the Study of the Liver, Asian Pacific Association for the Study of the Liver, and more. His presentations have addressed leading-edge approaches to the treatment of chronic liver disease, liver cancer, and liver failure. He also has presented his insights into the gastrointestinal impact of COVID-19.
For his clinical, research, and teaching achievements, Dr. Ahmed has earned extensive recognition. His honors include being named as one of America’s Top Physicians by the Consumers’ Research Council of America.
He is an active member of the American Gastroenterological Association and the American Association for the Study of Liver Diseases. -
Caitlin Ang
Casual Employee, Medicine - Med/Gastroenterology and Hepatology
Bio(she/her/hers)
Caitlin is a public health researcher with an MSPH from Johns Hopkins University, focused on women’s and reproductive health outcomes, population-level analysis, and equity-driven research. Her work sits at the intersection of data, policy, and real-world impact—using rigorous methods to understand how systems shape health outcomes across the life course.
Caitlin has experience supporting and leading quantitative and mixed-methods research, including data management and analysis, literature reviews, IRB and regulatory processes, and translating findings into reports, briefs, and academic outputs. She is especially interested in research related to maternal morbidity and mortality, reproductive health access, and structural drivers of health inequities.
She currently works as a research assistant for the Salles Lab at Stanford. Caitlin looks forward to contributing to creating inclusive, accessible spaces through this role by contributing to the Ending Sexual harassment: Teaching of Principal Investigators (E-STOP) Study. -
Ashish Atreja
Clinical Professor, Medicine - Gastroenterology & Hepatology
BioI work at the intersection of health care technology and artificial intelligence. My primary clinical specialty is Gastroenterology and my focus on AI is broad application and validation of clinical AI across diverse use cases.
After completing a master's in public health at the University of Illinois at Chicago, I have completed internal medicine residency, informatics fellowship, and gastroenterology fellowship at the Cleveland Clinic. I have been working at the intersection of technology and healthcare for the last 25 years, was the first gastroenterologist to receive informatics board certification. In leadership roles, I have led Epic implementations as informaticist, served as the Chief Innovation Officer, Medicine at Mount Sinai, New York, and most recently as CIO and inaugural Chief Digital Health Officer at UC Davis Health. For my executive roles, I have been recognized with numerous national honors, including being named one of the Top Digital Health Officers by Becker’s, a Top 40 Healthcare Transformer in 2017, a Top 50 Healthcare Leader by HIMSS in 2021, a Top 30 Health IT Influencer by Health Tech Magazine in 2022, a Top 150 Business Transformer Across global industries by Constellation Research and a top 35 Digital Health officer by Beckers in 2023.
As a digital health entrepreneur, I have successfully licensed technologies, and founded companies originating from academic medical centers. I was the co-founder of Rx.Health, a venture-backed spinout from Mount Sinai Health System that automated digital care delivery for major organizations including UnitedHealthcare and five of the top ten health systems in the U.S., ultimately impacting over 90 million patient lives before its successful acquisition. As a co-founder of GenServe.AI, I am currently working with a team focused on democratizing access to secure Generative AI and autonomous care for all.
I have been NIH-funded since 2014, including for IBD digital monitoring, have published more than 108 peer-reviewed articles and delivered over 250 posters, abstracts, and talks at national meetings. My research focuses on building, implementing, and evaluating digital health and AI-powered solutions aimed at improving patient and population outcomes, for which I am also known as the "App Doctor." -
Subhas Banerjee
Professor of Medicine (Gastroenterology and Hepatology)
Current Research and Scholarly InterestsDr. Banerjee is the Director of Endoscopy at the Stanford University Medical Center. His research interests include evaluation of advanced endoscopic procedures (ERCP, choledochoscopy and endoscopic ultrasound) in the diagnosis and management of benign and malignant pancreatic and biliary disease. Additional interests include the development of new endoscopic devices and instruments.
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Grant Barber
Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology
BioDr. Grant Barber is a Clinical Assistant Professor at Stanford University. His clinical passion is in the care of patients suffering from inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis. After completing his medical training at Harvard Medical School, he completed his training in gastroenterology as well as a Master's degree in clinical research at Stanford. He completed additional training in advanced IBD management at Stanford before joining faculty. His research is focused on male reproductive health in IBD, quality improvement in the provision of IBD care, and economic studies to identify strategies that provide excellent outcomes while being sustainable within the healthcare system. He is an expert in tailoring evidence-based therapies to need of individual people with IBD.
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Laren Becker
Assistant Professor of Medicine (Gastroenterology)
BioI am a physician-scientist in the Division of Gastroenterology at Stanford University. My clinical and research interest has been in neurogastroenterology. Specifically, my research has been exploring the interplay between immune cells and the enteric nervous system, and evaluating how perturbations of this interaction as a result of aging disrupts gastrointestinal neuromuscular function. Ultimately, my hope is that insights from this research provide novel therapies for treating patients with motility disorders like constipation and irritable bowel syndrome.
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Christina Bodurow
Affiliate, Medicine - Med/Gastroenterology and Hepatology
BioChris has a proven record of accomplishment delivering results to pharmaceutical and scientific organizations, including 33 years of management experience at Eli Lilly and Company, within Lilly Research Laboratories (LRL), 3.5 years in a global leadership role at IQVIA, and now as Deputy Director and COO of a significant NIH/NIAID research grant at Stanford University Medical School.
Over the years, Chris has served as a leader of multiple global teams in drug development and R&D Operations, representing her organizations in multiple external settings, including scientific, academic, drug development and R&D Operations forums.
In, December 2017, Chris retired from Lilly as Sr. Director, External Sourcing, leading an enterprise-wide R&D operations group that partnered with LRL functions to assess, on-board, and govern third party organizations across the entire drug development value chain, from pre-clinical, through clinical, regulatory, safety, health outcomes, product and device development, and diagnostics. The division consolidated both corporate and external requirements to deliver high-quality, risk-based, third party governance, oversight and alliance management for the LRL Development organization.
In February 2019, Chris joined IQVIA as the Vice-President of Strategy & Operations for DSSR, and subsequently moved in the role of Vice-President, Global Regulatory Affairs.
Specialties: Pharmaceutical Development, R&D Operations, Molecule Submission/Approval/Launch, Product Lifecycle Planning and Development, R&D Business Systems design and delivery. Third Party Management, Women's Leadership Development. -
Chris Cartwright, MD
Professor of Medicine (Gastroenterology and Hepatology), Emerita
Current Research and Scholarly InterestsMolecular mechanisms of intestinal cell growth control; function and regulation of the Src family of tyrosine kinases in normal cells, and their deregulation in cancer cells.
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Ramsey Cheung
Professor of Medicine (Gastroenterology and Hepatology)
Current Research and Scholarly InterestsDr. Cheung's research interests focus on liver diseases, with emphasis on viral hepatitis. His past research include investigating the mechanism of viral neutralization of hepatitis B virus at the molecular level and immune response to hepatitis C virus. Dr. Cheung is studing various aspects of hepatitis C, both clinical and translational research.
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Antonios Chronopoulos
Instructor, Medicine - Gastroenterology & Hepatology
Current Research and Scholarly InterestsMy research focuses on understanding how extracellular matrix (ECM) remodeling in liver fibrosis, particularly in the context of aging, diabetes, and metabolic-associated steatohepatitis (MASH), disrupts tissue mechanical homeostasis and drives hepatocellular carcinoma pathogenesis. The goal is to translate these mechanobiological insights into novel therapies targeting mechanotransduction to prevent or reverse fibrosis and improve patient outcomes with liver cancer and other desmoplastic tumors
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John Clarke
Clinical Professor, Medicine - Gastroenterology & Hepatology
BioDr. John Clarke recently joined the Gastroenterology & Hepatology Division at Stanford University as Director of the Esophageal Program. He previously spent 17 years in Baltimore, including 9 years on the faculty at Johns Hopkins University where he was an Associate Professor and at various times Director of Esophageal Motility, Director of Gastrointestinal Motility, Clinical Director of the Johns Hopkins Center for Neurogastroenterology, and Clinical Director of the Gastroenterology & Hepatology Division at Johns Hopkins Bayview Medical Center.
His career has combined research, education and clinical care. His clinical areas of expertise include achalasia, dysphagia, eosinophilic esophagitis, esophageal dysmotility, gastroesophageal reflux disease, gastroparesis, GI-manifestations of scleroderma and GI dysmotility. While at Johns Hopkins University, he was inducted into The Miller-Coulson Academy for Clinical Excellence, an institutional honor society for master clinicians at the time limited to 50 members across the entire university.
From an education standpoint, he has lectured in over a dozen countries, authored over 25 textbook chapters and serves on the educational affairs committee of the American College of Gastroenterology. He has also won several major teaching awards, including The Johns Hopkins University Alumni Association Award for Excellence in Teaching, given to one faculty member per year in the entire School of Medicine.
His research has focused on optimization and characterization of diagnostic studies to evaluate motility disorders, as well the relationship between therapeutic endoscopic techniques and treatment of motility disorders. He was an investigator on the NIH Gastroparesis Consortium and is also a former recipient of the AGA Don Castell Award. -
Meredith Craven, PhD, MPH, RYT
Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology
Current Research and Scholarly InterestsDr. Craven’s research reflects her background and interests in psychogastroenterology (GI psychology), public health, and positive psychology. She has collaborated on projects across the spectrum of GI disorders, using quantitative and qualitative methods. She is interested in the role of biopsychosocial factors on symptom perception, experience, and related health outcomes and behaviors. In particular, she is passionate about investigating the role of patient strengths that can be fostered clinically, and mind-body practices.
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Tami Daugherty, MD
Clinical Associate Professor, Medicine - Gastroenterology & Hepatology
Current Research and Scholarly InterestsDr. Daugherty is a transplant Hepatologist with full-time clinical responsibilities. She is particularly interested in the natural course and management of recurrent Hepatitis C after liver transplant, and the effect of immunosuppression on HCV recurrence.
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Renumathy Dhanasekaran
Assistant Professor of Medicine (Gastroenterology)
Current Research and Scholarly InterestsThe overall goal of my research is to understand the molecular pathogenesis of liver cancer and identify biologically relevant prognostic biomarkers and molecular targets for therapy in patients with hepatocellular carcinoma (HCC). My long-term objective is to improve the clinical outcome of patients with liver cancer.
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Nikki Duong, MD
Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology
Current Research and Scholarly InterestsMy research interests focus on quality improvement and patient reported outcomes in people with cirrhosis. I also have interests in expanding our breadth of knowledge in caring for patients with gastrointestinal and liver disorders who identify as a sexual and gender minority.
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Chiazotam Ekekezie
Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology
BioPrior to Stanford, Dr Ekekezie completed internal medicine training and chief residency at Brown University. She moved to Stanford for GI and hepatology fellowship, and served as a chief fellow in her final year. After fellowship, she stayed on joining as a Clinical Assistant Professor and Associate Program Director for the GI fellowship program. She has presented nationally and internationally on topics related to medical education, psychological safety, and inclusion.
Clinically, Dr Ekekezie welcomes seeing patients with a diverse range of GI-related issues as part of Stanford’s general GI group. She is dedicated to advancing a career in academic medicine that is balanced on her “core-four” pillars: humanism-centered patient care, community-engaged advocacy, service-oriented leadership, and mentoring the next generation of clinicians. She has received numerous awards for excellence in patient care, professionalism, communication, and collaborative consultation, as well as for her skills as an effective leader, mentor, and educator. -
Menashe Elazar
Sr. Research Scientist - Basic Life, Medicine - Med/Gastroenterology and Hepatology
Current Role at StanfordSenior Research Scientist
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Samer Eldika
Clinical Professor, Medicine - Gastroenterology & Hepatology
BioDr. Eldika received his medical education at the American University of Beirut. He completed his General Gastroenterology Fellowship at the State University of New York in Buffalo and Advanced Endoscopy Fellowship at the University of Virginia. At Ohio State University, he served as the Director of Interventional Endoscopy and Endoscopic Quality. His time at Ohio State University contributed to the growth and maturity of his experience and skills in interventional endoscopy. During his tenure there, he played a major role in building the program of interventional endoscopy in general, as well as interventional endoscopy for the pediatric age group, and the endoscopic quality program. Over the years, he was involved in training several gastroenterology fellows and interventional endoscopists. He recently joined Stanford University where he continues to practice interventional endoscopy and train fellows.
He is a board-certified Gastroenterologist with clinical interests in pancreaticobiliary diseases, gastrointestinal neoplasia, and related interventional endoscopic procedures. As an endoscopist, he has extensive experience in performing a variety of interventional endoscopic procedures. These procedures include endoscopic ultrasound (EUS)-guided procedures like fine needle aspiration/biopsy, injections, fiducial placement, pseudocyst drainage/necrosectomy, biliary drainage, gastrojejunostomy, transgastric ERCP, and needle-based confocal endomicroscopy for the evaluation of pancreatic cystic lesions. He also performs endoscopic retrograde cholangiopancreatography (ERCP), endoscopic mucosal resection, enteral and stenting, enteral feeding tube placement, as well as deep enteroscopy.
His research interest evolves around interventional endoscopy, more specifically in the evaluation of pancreatic cystic lesions. Dr. Eldika has received multiple awards in his career, his most recent one being the “Reviewer Award, April 2020,” for his superior contributions to the journal of Gastrointestinal Endoscopy, both through completing high numbers of reviews and for submitting the highest quality of work.
Dr. Eldika is a fellow of the American Society of Gastrointestinal Endoscopy. He is a member of the American Gastroenterological Association, American College of Gastroenterology, and American Pancreatic Association.
When not working Dr. Eldika enjoys reading, listening to music, watching sports and walking in nature. -
Nielsen Fernandez-Becker
Clinical Professor, Medicine - Gastroenterology & Hepatology
BioI am the director of the Celiac Disease Program at Stanford and I am highly experienced in diagnosis and management of celiac disease and gluten associated disorders.
My objective is to provide excellent and compassionate clinical care for my patients while seeking a better understanding of diseases I treat, particularly Celiac disease (CeD), eosinophilic esophagitis (EoE). My top priorities are patient care and translational research to make new discoveries and improve the care my patients. -
Shai Friedland
Professor of Medicine (Gastroenterology and Hepatology)
Current Research and Scholarly Interests1. Gastrointestinal Endoscopy- Techniques and Outcomes
2. Noninvasive colorectal cancer screening
3. Medical device development in gastroenterology -
Gabriel Garcia, MD
Professor of Medicine (Gastroenterology and Hepatology) at the Stanford University Medical Center, Emeritus
Current Research and Scholarly InterestsThe natural history of common viral liver diseases of man is poorly understood, despite the fact that chronic liver diseases of man may result in death from liver failure or hepatocellular carcinoma.
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Patricia Garcia
Clinical Associate Professor, Medicine - Gastroenterology & Hepatology
BioPatricia Garcia, MD is a board certified gastroenterologist and clinical informaticist. She is fellowship trained in neurogastroenterology and specializes in treating disorders of gastrointestinal motility including trouble swallowing, heartburn, reflux, constipation, fecal incontinence and pelvic floor dysfunction. She is also passionate about using digital health technologies and artificial intelligence to improve clinician and care team burden and burnout.
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Jeffrey S. Glenn, M.D., Ph.D.
Joseph D. Grant Professor and Professor of Microbiology and Immunology
Current Research and Scholarly InterestsDr. Glenn's primary interest is in molecular virology, with a strong emphasis on translating this knowledge into novel antiviral therapies. Other interests include exploitation of hepatic stem cells, engineered human liver tissues, liver cancer, and new biodefense antiviral strategies.
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Aparna Goel
Clinical Associate Professor, Medicine - Gastroenterology & Hepatology
Current Research and Scholarly InterestsDr. Goel is interested in studying the complications and management of patients with end-stage liver disease, including infections, bleeding and encephalopathy. As the waitlist for liver transplantation continues to grow, many patients develop consequences of decompensated liver disease. It is becoming increasingly important to improve our understanding and care of these complications in order to optimize the quality of life for this growing population of patients.
She is also particularly interested in the management of patients with autoimmune liver disease including autoimmune hepatitis, primary biliary cholangitis, primary sclerosing cholangitis among others. -
David Edward Goldenberg
Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology
BioDr Goldenberg completed training at UCLA, Geisel School of Medicine at Dartmouth, Tufts Medical Center, and Cedars Sinai Medical Center. In addition to a gastroenterology fellowship, he graduated with a Masters in Healthcare Delivery Science at Cedars Sinai Medical Center. He has a passion for medical education and enjoys teaching medical students, residents, and fellows as a Clinician Educator. His research focuses on Healthcare Delivery with an emphasis on maximizing value-based healthcare and medical innovation. He has an additional interest in translational research with multiple publications and patent applications for medical devices. He has unique clinical expertise in fecal microbiota transplantation.
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Harry B Greenberg
Joseph D. Grant Professor in the School of Medicine, Emeritus
Current Research and Scholarly InterestsMolecular mechanisms of pathogenesis; determinants of protective immunity; host range and tissue tropism in liver and GI tract pathogenic viruses and studies of vaccines in people.
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Damanpreet Grewal
Clinical Associate Professor, Medicine - Gastroenterology & Hepatology
BioBeing from Bay Area, I enjoy providing medical care to patients in northern California. I am excited to be part of the wonderful team of gastroenterologists at Stanford University Medical Center with its multi-disciplinary approach to caring for patients in an integrated healthcare system. I am dedicated to providing high-quality care to my patients while getting to know their personal beliefs so as to involve them in the decision-making process. Based on my education and training, I practice general gastroenterology in addition to performing endoscopies and colonoscopies.
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Michael K. Helms, PhD, MBA
Casual Employee, Medicine - Med/Gastroenterology and Hepatology
Current Role at StanfordDirector of Research Development, Team Science
Department of Medicine
Stanford University School of Medicine -
Edith Ho
Clinical Professor, Medicine - Gastroenterology & Hepatology
Current Research and Scholarly InterestsDr. Ho plays an active role in the American College of Gastroenterology (ACG) Educational Affairs committee, where she chairs several abstract committees, directs regional post-graduate courses, regularly reviews physician course content, and develops CME content for the American Journal of Gastroenterology. She is also involed in the ACG Research Committee, which plays a criticol role in setting the direction of scientific advancement, education, and distribution of grant funding. Dr. Ho has also served as a guideline author for the American Gastroenterological Association on endoscopic therapies for weight loss and the medical management of luminal and perianal Crohn's disease. These guidelines shed new knowledge and set new standards of care for clinical practice here and abroad.
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Robert Huang
Assistant Professor of Medicine (Gastroenterology and Hepatology)
Current Research and Scholarly InterestsEpidemiology
Epidemiology of gastric cancer
Racial and ethnic disparities in gastric cancer
Gastric intestinal metaplasia and other precancerous lesions
Molecular marker development
Microbiome -
Elizabeth W Hwang
Clinical Associate Professor (Affiliated), Medicine - Med/Gastroenterology and Hepatology
Staff, Medicine - Med/Gastroenterology and HepatologyBioBOARD CERTIFICATIONS:
Transplant Hepatology
Gastroenterology
Internal Medicine
PROFESSIONAL EDUCATION:
Fellowship: Columbia University Medical Center, Transplant Hepatology
Fellowship: Stanford University School of Medicine, Gastroenterology and Hepatology
Residency: Columbia University Medical Center, Internal Medicine
Medical Education: Johns Hopkins University School of Medicine (2005) -
Joo Ha Hwang, MD, PhD
Fortinet Founders School of Medicine Professor and Professor, by courtesy, of Surgery
Current Research and Scholarly InterestsSpecialize in early detection of gastrointestinal malignancies including esophageal, gastric, pancreatic, bile duct & colon cancers. I have both a clinical & research interest in improving the early detection of gastric cancer in particular. I am the PI of the Gastric Precancerous conditions Study, a prospective study of patients with gastric intestinal metaplasia & other precancerous conditions which combines comprehensive clinical & endoscopic data with a large bio-specimen repository.
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Sajid Jalil
Clinical Associate Professor, Medicine - Gastroenterology & Hepatology
BioDr. Jalil is a board-certified, fellowship-trained transplant hepatologist (liver doctor) and gastroenterologist at the Stanford Health Care Digestive Health Center in San Jose, California. He is also a clinical associate professor in the Department of Medicine, Division of Gastroenterology and Hepatology, at Stanford University School of Medicine.
Dr. Jalil has extensive experience helping patients with a range of liver- and digestion-related conditions. He specializes in liver transplantation, and his other clinical interests include all forms of hepatitis, cirrhosis of the liver, fatty liver disease, polycystic liver disease, and primary sclerosing cholangitis (swelling and scarring of the bile ducts). He has also volunteered in initiatives to offer free colonoscopy and hepatitis B screenings to underserved ethnic populations.
His research interests include improving mental health by enhancing treatment access for patients with alcohol use disorder causing alcoholic liver disease. He has also studied swallowing problems, liver disease in pregnancy, living liver donation, and the use of artificial intelligence in treating nonalcoholic fatty liver disease and viral hepatitis. In addition, Dr. Jalil wrote a chapter on bile secretion and cholestasis (diminished bile flow) for the fifth edition of Yamada’s Textbook of Gastroenterology.
Dr. Jalil has published in numerous peer-reviewed journals, including World Journal of Hepatology, Liver Transplantation, and the Journal of Clinical Gastroenterology. Additionally, he has served as a reviewer for Pancreatology and as an abstract reviewer for the American Gastroenterological Association (AGA) and the Ohio Chapter of the American College of Physicians. He has presented his research at meetings and conferences worldwide on a range of topics, including the timing of pregnancy after liver transplantation.
Dr. Jalil is an AGA fellow and a member of the American Association for the Study of Liver Diseases, American College of Gastroenterology, and American Society for Gastrointestinal Endoscopy. -
Mathangi Janakiraman
Postdoctoral Scholar, Gastroenterology
Current Research and Scholarly InterestsI study how the gut ecosystem, gut function, and neuroimmune interactions change during aging and in diseases like Alzheimer’s. I investigate how dietary interventions, including fermented foods and ketones, modulate gut cells and physiology. My goal is to reveal mechanisms through which diet supports healthy aging and to advance dietary strategies for age‑associated diseases.
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Yan Jiang
Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology
BioDr. Yan Jiang is a gastroenterologist specializing in esophageal and motility disorders including gastroesophageal reflux disease (GERD), eosinophilic esophagitis, achalasia, etc. He obtained his medical degree at New York University before completing internal medicine residency and gastroenterology fellowship at Stanford. While at Stanford, Dr. Jiang also received a master's degree in clinical research and epidemiology. His main research interests are in esophageal disorders as well as dietary interventions and technological applications to GI practice.
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Yi Jiang
Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology
BioDr. Jiang is a board-certified gastroenterologist and pancreatologist. Her clinical interests include chronic abdominal pain, acute and chronic pancreatitis, pancreatic cysts, exocrine pancreatic insufficiency, and pancreatic cancer screening. She is committed to delivering evidence-based, personalized care focused on optimizing outcomes and improving quality of life.
Dr. Jiang has a particular interest in chronic pancreatitis and completed dedicated fellowship training in medical pancreatology under the mentorship of Dr. Stephen Pandol, a leading expert in the field. Her work emphasizes multidisciplinary care, and she is actively involved in clinical trials investigating innovative approaches such as novel nutritional therapies and digital health interventions. Her research has been published in Gastroenterology, Gut, Clinical Gastroenterology and Hepatology, Frontiers in Physiology, Pancreas, and Cancers. She served as an abstract reviewer and moderator for the Pancreatitis session at Digestive Disease Week, one of the leading national conferences in the field of gastroenterology. She currently serves as a topic editor for the journal Frontiers in Physiology research collections: “Pain Mechanisms: The Drivers of Quality of Life in Patients with Gastrointestinal Disorders” and "Pancreatitis as a Neural Circuit Disorder: Nociceptor Sensitization, Glial Activation, and Non-Opioid Therapeutic Targets". -
Kian Keyashian
Clinical Associate Professor, Medicine - Gastroenterology & Hepatology
BioThe management of inflammatory bowel disease continues to evolve, with the introduction of biologic and small molecule therapies and new goals of treatment, with an emphasis on healing the bowel. My career goal since my graduation from IBD fellowship in 2012 has been to improve the outcomes and quality of life of patients with inflammatory bowel disease. In line with these goals, my research has focused investigating new noninvasive diagnostic test, finding factors early in the disease course that might predict a more aggressive disease course and need for different therapies, and investigating new promising effective medications with less side effects.
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Donghee Kim, MD, PhD
Social Science Research Scholar, Medicine - Med/Gastroenterology and Hepatology
BioI am a physician with specialized training in gastroenterology and hepatology. My research primarily focuses on clinical research of metabolic dysfunction-associated steatotic liver disease (MASLD), chronic liver diseases, and obesity-related gastrointestinal diseases, focusing on a population-based study. In addition, my research has expanded to encompass areas such as cardiology, endocrinology, neurology, and psychiatry. I have extensive experience in large epidemiologic cohort studies as well as clinical trials. This work has resulted in over 250 published papers in prominent journals, including Gastroenterology, Journal of Hepatology, Gut, Hepatology, and Clinical Gastroenterology and Hepatology, serving as the first and corresponding author. These publications have been cited more than 18,000 times.
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Nathan Geonwoo Kim, MD, MS
Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology
BioDr. Nathan Geonwoo Kim is a board-certified, fellowship-trained transplant hepatologist with Stanford Health Care. He is also a clinical assistant professor in the Department of Medicine, Division of Gastroenterology & Hepatology at Stanford University School of Medicine.
Dr. Kim specializes in hepatology and liver transplantation (transplant hepatology). He cares for people with severe liver disease, such as cirrhosis, alcohol-associated hepatitis, and metabolic dysfunction-associated steatotic liver disease. Dr. Kim also provides personalized liver cancer care, which may include targeted therapies or liver transplantation to achieve the best possible outcomes.
With a Master of Science in epidemiology and clinical research, Dr. Kim studies hepatocellular carcinoma and outcomes in chronic liver disease. His research focuses on ways to deliver better, more equitable care to people with liver diseases.
Dr. Kim has published his findings in leading medical journals, including the Journal of Hepatology, Clinical Gastroenterology and Hepatology, and Cancer. He has also shared his expertise at national and international conferences, including Digestive Disease Week, The Liver Meeting, and the International Liver Congress. -
Paul Kwo
Professor of Medicine (Gastroenterology and Hepatology)
BioDr. Kwo is currently Professor of Medicine and Director of Hepatology at the Stanford University where he joined the faculty in November 2016. Prior to joining the faculty at Stanford, he was at Indiana University for 21 years where he served as the Medical Director of Liver Transplantation. He has distinguished himself in the field of Hepatitis C therapeutics and has been the principal investigator on multiple international trials. He recently authored the ACG Clinical Guideline: Evaluation of Abnormal Liver Chemistries.
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Allison Kwong
Assistant Professor of Medicine (Gastroenterology and Hepatology) and, by courtesy, of Surgery (Abdominal Transplantation)
Current Research and Scholarly InterestsCirrhosis, portal hypertension, liver transplantation, transplant outcomes, organ allocation, population health, quality and systems improvement
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Uri Ladabaum
Professor of Medicine (Gastroenterology and Hepatology)
Current Research and Scholarly InterestsGastrointestinal cancer prevention and risk management. Risk stratification. Cost-effectiveness analysis. Health services research.
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Alice A. Lee
Instructor, Medicine - Gastroenterology & Hepatology
Current Research and Scholarly InterestsDr. Lee's research focuses on the early detection of pancreatic cancer, including the investigation of risk factors for pancreatic cancer and biomarkers to detect early cancer.
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Andrew A. Li, MD
Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology
BioDr. Li is a board-certified, fellowship-trained gastroenterologist with Stanford Health Care. He is a clinical assistant professor in the Department of Medicine, Division of Gastroenterology and Hepatology at Stanford University School of Medicine.
A therapeutic endoscopy specialist, Dr. Li received fellowship training in gastroenterology, advanced endoscopy, and endoscopic surgery at Stanford University School of Medicine. He is board certified in internal medicine and gastroenterology.
Dr. Li specializes in advanced endoscopic procedures. His areas of expertise include endoscopic ultrasound (EUS), endoscopic retrograde cholangiopancreatography (ERCP), enteroscopy, endoscopic mucosal resection (EMR), and endoscopic submucosal dissection (ESD). He also specializes in esophageal peroral endoscopic myotomy (POEM), gastric peroral endoscopic myotomy (GPOEM), and Zenker’s diverticulum peroral endoscopic myotomy (ZPOEM).
In addition, he treats gastrointestinal cancers, including gastric (stomach) cancer and colon cancer. He is dedicated to helping patients by integrating leading-edge research and innovations with compassionate, patient-centered clinical care.
Dr. Li’s research interests include gastric cancer, innovations in advanced endoscopy and endoscopic surgery, and the application of artificial intelligence (AI) and other computational techniques for prevention, diagnoses, and treatments.
Dr. Li has published articles in the World Journal of Gastrointestinal Endoscopy, Gastrointestinal Endoscopy, and Endoscopy International Open. He has presented at national and international conferences held in Las Vegas; Washington, D.C.; and Seoul, Korea. In his many presentations, he has covered topics such as the prevention of gastric cancer and prevention of post-ERCP pancreatitis.
Dr. Li is a member of the American Society for Gastrointestinal Endoscopy, American College of Gastroenterology, American Gastroenterological Association, and American College of Physicians. -
David Limsui
Clinical Professor, Medicine - Gastroenterology & Hepatology
BioThroughout my career I have been extensively involved in post-graduate medical education and training of residents and fellows. I served on the AGA Future Trends Committee tasked with reporting the future of gastroenterology training programs and have been admitted into the AGA Academy of Educators. I joined Stanford for the incredible opportunity to be part of a dynamic division with excellent and dedicated faculty where one can achieve their greatest potential. I share the honor and privilege of leading our fellowship program and in the joy of teaching such talented and inspiring fellows. Together we strive to provide the best educational experience for our fellows to become outstanding gastroenterologists and future leaders in academic medicine.
My subspecialty areas of focus are inflammatory bowel disease and general gastroenterology.
