School of Medicine
Showing 141-160 of 167 Results
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Edward Sheen
Adjunct Professor, Medicine - Med/Gastroenterology and Hepatology
BioDr. Edward Sheen is Chief Quality and Population Health Executive for L.A. Care. Serving more than 2.9 million members, L.A. Care is the largest publicly operated health plan in the country. As a public entity, its mission is to provide access to quality care for vulnerable and low-income communities and to support the safety net. Previously, he was Chief Population Health Officer, Senior Vice President for Health Catalyst and Chief Medical Officer, Market Development and Solution Design for Lumeris, a leading value-based care technology and services operator as well as 5.0 Star Medicare Advantage plan. He has worked with health systems and payers across the country to improve health outcomes, enhance patient experience, strengthen care provider engagement, reduce costs of care, and accelerate their journey towards accountable care. He is dedicated to achieving accessible, equitable, person-centered, and high performing care for all.
Dr. Sheen’s experience has bridged the public, private, non-profit, and academic sectors and additionally includes work with Stanford University, the White House, U.S. Department of Defense, U.S. Department of Health and Human Services, California State Assembly, Kaiser Family Foundation, Blue Shield, California and American Medical Associations, and Genzyme. In 2014, he was one of 15 Americans appointed by President Obama a nonpartisan White House Fellow. He subsequently served as a Special Assistant to the Secretary of Defense and Defense Department senior health policy advisor and was a recipient of the Office of the Secretary of Defense Medal for Exceptional Public Service. Dr. Sheen was a Term Member of the Council on Foreign Relations. He currently serves on the National Advisory Council on the National Health Service Corps, which advises the Secretary of Health and Human Services. He is Adjunct Professor of Medicine and Global Health Faculty Fellow at Stanford. He has a long-standing active commitment to mentoring, teaching, and medical education.
Dr. Sheen completed his Internal Medicine and Gastroenterology training at Stanford, received his MD from the University of California, San Francisco, and earned his MBA and MPH through scholarships from Stanford Graduate School of Business and Harvard School of Public Health, where he was also a Harvard Kennedy School Center for Public Leadership Zuckerman Fellow. He graduated magna cum laude from Brown University with a B.A. in Public Policy and induction into Phi Beta Kappa. -
Gulshan Singh
Postdoctoral Scholar, Gastroenterology
Current Research and Scholarly InterestsMy current research interest is to understand the host-microbial pathways in intestinal inflammation. I am working to explore cellular heterogeneity at single immune cell level in systemic and local regions of the intestine that are associated with different Inflammatory bowel disease conditions.
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Sundeep Singh
Clinical Associate Professor, Medicine - Gastroenterology & Hepatology
BioAfter living and training throughout the country, I am excited to be part of the Stanford team. As a result of both my personal experiences and training, I am passionate about ensuring that patients receive appropriate diagnostic testing and treatment options in order to improve people's quality of life. In collaboration with my amazing colleagues, I am confident in the high quality and easily accessible care we are able to provide to patients across northern California.
While my interest is most in inflammatory bowel disease, I am also interested in the interaction between mental health, incentives, and emerging therapies in gastroenterology. -
Sidhartha Sinha
Assistant Professor of Medicine (Gastroenterology and Hepatology)
Current Research and Scholarly InterestsThere are two primary and overlapping emphases of my research, both of which are driven and united by needs-based innovation and translational potential:
(1) Understanding the microenvironment of the inflamed versus normal gut in order to identify better therapeutic targets for people with immune-¬mediated GI disorders. Here, our investigations include understanding the influence and interactions of pharmacologic and dietary interventions on gut microbiome/metabolomic changes and the host immune response. In the context of providing patients with new understanding and solutions for their disease, I have led and advised on the design of both pilot and large clinical trials (including new FDA approved therapies) for anti-inflammatory therapies;
(2) Applying novel approaches and technologies (including natural language processing, computer vision, and reinforcement learning) to identify and address unmet clinical needs. In this area we have ongoing and published efforts in my lab to validate and develop solutions to pressing clinical needs. We have developed/led new drug delivery technologies with a multidisciplinary team that have shown strong potential in ongoing human IBD clinical trials. My lab has utilized both supervised and unsupervised approaches to analyze social media discourse and unstructured data sets for identifying patient needs that are rarely addressed in clinical settings. We have gained insights into patient perceptions around preventative health interventions, such as health screening and diet, including the dearth of evidence-based dietary recommendations to treat IBD (despite strong patient desire for solutions in this domain). -
Irene Sonu
Clinical Associate Professor, Medicine - Gastroenterology & Hepatology
BioI am passionate about gut health and strive to provide the best care to my patients. I specialize in complex motility disorders of the gastrointestinal tract. My areas of clinical expertise include achalasia, dysphagia, eosinophilic esophagitis, gastroesophageal reflux disease, gastroparesis, functional dyspepsia, irritable bowel syndrome, and pelvic floor dysfunction. I also see patients in need of fecal microbiota transplant for recurrent C. difficile infection.
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Sean Paul Spencer, MD,PhD
Instructor, Medicine - Gastroenterology & Hepatology
BioSean Spencer, MD,PhD is a Gastroenterologist and Physician Scientist at Stanford University working with Justin Sonennburg,PhD to uncover the role of dietary intake on the gut microbiome and mucosal immune system. Sean obtained his medical degree University of Pennsylvania, earning his PhD studying nutritional immunology with Yasmine Belkaid,PhD at the National Institutes of Health (NIH), after which he moved to Boston for residency training at Massachusetts General Hospital and completed his Gastroenterology training at Stanford University. Sean’s career goal is to study mechanisms by which dietary intake influences our microbiome and immune system to better understand and treat gastrointestinal disease.
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Sarah Streett
Clinical Professor, Medicine - Gastroenterology & Hepatology
BioDr. Sarah Streett is a Clinical Professor of Medicine, the Director of Inflammatory Bowel Disease Education at Stanford, and she is passionate about taking care of people with IBD. She is a national expert in treating complex IBD and initiated a multi-disciplinary approach to care with colorectal surgery, pediatrics, and nutrition. In 2018 she received the Champion of Hope Award from the Crohn’s and Colitis Foundation and serves on their National Scientific Advisory Committee. Her interests focus on fertility and pregnancy in people with IBD, developing precision approaches to IBD therapy, and the role that the microbiome and diet play in its pathogenesis. She is a primary investigator of the Stanford IBD Registry and has research projects focused on optimizing clinical outcomes in IBD, the role of the microbiota and diet in IBD and pregnancy, and applying new technologies to individualizing therapy for IBD. She is also the primary investigator on multiple industry-sponsored IBD trials.
Teaching is a top priority for Dr. Streett who feels that mentoring fellows in the development of their careers is a privilege. She has held many national leadership roles in the American Gastroenterological Association, where she has been Chair of the Practice Management and Economics Committee, and currently serves on the Government Affairs Committee. She also an appointed member of the Gastrointestinal Drug Advisory Committee at the FDA. She has represented the interests of gastroenterologists and their patients on Capitol Hill numerous times. Dr. Streett believes strongly in a collaborative approach to give patients personalized care based on the latest therapies for the treatment of IBD and is committed to mentoring the next generation of experts in the field. -
Natalie Torok
Professor of Medicine (Gastroenterology and Hepatology)
Current Research and Scholarly InterestsOur lab is focused on exploring the role of matrix remodeling in disease progression in metabolic dysfunction steatohepatitis (MASH)-related hepatocellular carcinoma and primary sclerosing cholangitis. Our goal is to uncover how biomechanical characteristics of the ECM affect mechano-sensation, and how these pathways could ultimately be targeted. We are also interested in aging and its effects on metabolic pathways in MASH and HCC.
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Mike Tzuhen Wei
Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology
BioDr. Wei was born and raised in Taipei, Taiwan. He went to Stanford for his undergraduate studies in Biology and earned his medical degree at Weill Cornell Medical College. Unable to stay far from the Bay Area, he returned to Stanford where he completed his residency in internal medicine and subsequently his fellowship in gastroenterology. Dr. Wei has specific interests in colorectal cancer and Barrett’s esophagus surveillance as well as reflux diagnosis and management. He has an interest in endoscopic resection of large polyps and had received training under Dr. Shai Friedland, a world expert in this field. Dr. Wei work focuses on evaluating new tools, technologies and techniques in gastrointestinal cancer surveillance and management. He has been involved in running several trials in endoscopic management of polyps and evaluating artificial intelligence applications in gastroenterology. His work has been published in American Journal of Gastroenterology, Gastrointestinal Endoscopy, Clinical Endoscopy, VideoGIE, and Digestive Diseases and Sciences. He was formerly an Associate Editor for the ACG Case Report Journal (2020-2022) and was on the Board of the Northern California Society of Clinical Gastroenterology. When not in clinic or in endoscopy, Dr. Wei enjoys spending time with his family. He and his family enjoy traveling and exploring new restaurants.
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Alexa Rachel Weingarden
Clinical Instructor, Medicine - Gastroenterology & Hepatology
BioAB in Earth and Planetary Sciences and Biology, Harvard College, 2008
PhD in Microbiology, Immunology, and Cancer Biology, University of Minnesota, 2015
MD, University of Minnesota, 2017
Internal Medicine Residency, Stanford, 2017-2019
Gastroenterology Fellowship, Stanford, 2019 - Present
