School of Medicine


Showing 1-63 of 63 Results

  • Aijaz Ahmed

    Aijaz Ahmed

    Professor of Medicine (Gastroenterology and Hepatology)

    Bio My research interests include nonalcoholic fatty liver disease (NAFLD) and viral hepatitis. I have focused my research to database analysis/outcomes and translational research in these areas. While database analysis has been critical in outlining trends in NAFLD and viral hepatitis epidemiology, translational research has provided insight into disease mechanism and future therapies. I collaborate with several basic science colleagues and act as clinical mentor for young investigators involved in translational research. I am also interested and act as adjunct faculty in biodesign and health policy. I have participated in several clinical trials as a co-investigator.

  • Subhas Banerjee

    Subhas Banerjee

    Professor of Medicine (Gastroenterology and Hepatology)

    Current Research and Scholarly Interests Dr. 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.

  • Laren Becker

    Laren Becker

    Assistant Professor of Medicine (Gastroenterology)

    Bio I 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.

  • Chris Cartwright, MD

    Chris Cartwright, MD

    Professor of Medicine (Gastroenterology and Hepatology), Emerita

    Current Research and Scholarly Interests Molecular 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.

  • Alice Cheng

    Alice Cheng

    Clinical Instructor, Medicine - Gastroenterology & Hepatology

    Current Research and Scholarly Interests Dr. Cheng designs and uses complex defined microbial communities to study and treat gastrointestinal disease. The ultimate goal of her research is to develop synthetic gut microbiomes that will supplant and surpass fecal transplant therapy for conditions such as recurrent Clostridium difficile colitis, inflammatory bowel disease, and nonalcoholic fatty liver disease.

  • Ramsey Cheung

    Ramsey Cheung

    Professor of Medicine (Gastroenterology and Hepatology)

    Current Research and Scholarly Interests Dr. 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.

  • John Clarke

    John Clarke

    Clinical Professor, Medicine - Gastroenterology & Hepatology

    Bio Dr. 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.

  • Tami Daugherty

    Tami Daugherty

    Clinical Associate Professor, Medicine - Gastroenterology & Hepatology

    Current Research and Scholarly Interests Dr. 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.

  • Renumathy Dhanasekaran

    Renumathy Dhanasekaran

    Assistant Professor of Medicine (Gastroenterology)

    Current Research and Scholarly Interests The 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.

  • Samer Eldika

    Samer Eldika

    Clinical Associate Professor, Medicine - Gastroenterology & Hepatology

    Bio Dr. 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

    Nielsen Fernandez-Becker

    Clinical Associate Professor, Medicine - Gastroenterology & Hepatology

    Bio I 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

    Shai Friedland

    Professor of Medicine (Gastroenterology and Hepatology)

    Current Research and Scholarly Interests 1. Gastrointestinal Endoscopy- Techniques and Outcomes
    2. Noninvasive colorectal cancer screening
    3. Medical device development in gastroenterology

  • Gabriel Garcia, MD

    Gabriel Garcia, MD

    Professor of Medicine (Gastroenterology and Hepatology) at the Stanford University Medical Center, Emeritus

    Current Research and Scholarly Interests The 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.

  • Patricia Garcia

    Patricia Garcia

    Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology

    Bio Patricia Garcia, MD is a board certified gastroenterologist and fellowship trained neurogastroenterologist who specializes in treating disorders of gastrointestinal motility including trouble swallowing, heartburn, reflux, constipation, fecal incontinence and pelvic floor dysfunction.

  • Jeffrey S.  Glenn, M.D., Ph.D.

    Jeffrey S. Glenn, M.D., Ph.D.

    Professor of Medicine (Gastroenterology and Hepatology) and of Microbiology and Immunology

    Current Research and Scholarly Interests Dr. 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.

  • Aparna Goel

    Aparna Goel

    Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology

    Current Research and Scholarly Interests Dr. 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

    David Edward Goldenberg

    Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology

    Bio Dr Goldenberg completed his education and training at some of the top clinical sites in the country, including 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. He has an additional interest in translational research with multiple publications and provisional patent applications for medical devices.

  • Andres Gottfried Blackmore

    Andres Gottfried Blackmore

    Instructor, Medicine - Gastroenterology & Hepatology

    Bio I am a board-certified gastroenterologist and physician-scientist with a broad research background in neuroimmunology. I am currently applying my knowledge of neuroimmunology and inflammation to advancing our understanding of gastroparesis and other functional motility disorders. Through translational clinical trials and laboratory research, my long-term career goal is to understand the neuroimmune basis of functional motility gut disorders and provide improved diagnostics and treatments to patients.

  • Harry B Greenberg

    Harry B Greenberg

    The Joseph D. Grant Professor in the School of Medicine and Professor of Microbiology and Immunology

    Current Research and Scholarly Interests Molecular 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.

  • Damanpreet Grewal

    Damanpreet Grewal

    Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology

    Bio Being 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.

  • Aida Habtezion MD MSc.

    Aida Habtezion MD MSc.

    Associate Professor of Medicine (Gastroenterology and Hepatology)

    Current Research and Scholarly Interests Leukocyte recruitment & immune responses in diseases affecting digestive organs

  • Edith Ho

    Edith Ho

    Clinical Associate Professor, Medicine - Gastroenterology & Hepatology

    Current Research and Scholarly Interests Dr. 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 also serves 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.

    Dr. Ho’s research interests include investigating screening practices prior to initiating immunosuppressive therapy, and non-traditional therapies for inflammatory bowel disease.

  • Robert Huang

    Robert Huang

    Instructor, Medicine - Gastroenterology & Hepatology

    Current Research and Scholarly Interests Epidemiology
    Epidemiology of gastric cancer
    Racial and ethnic disparities in gastric cancer
    Gastric intestinal metaplasia and other precancerous lesions
    Molecular marker development

  • Joo Ha Hwang, MD, PhD

    Joo Ha Hwang, MD, PhD

    Professor of Medicine (Gastroenterology and Hepatology) and, by courtesy, of Surgery

    Bio Dr. Hwang specializes in early detection of gastrointestinal malignancies including esophageal cancer, gastric (stomach) cancer, pancreatic cancer, bile duct cancer and colon cancer. Dr. Hwang performs advanced endoscopic procedures including EUS-FNA, ERCP and enteroscopy. In addition, Dr. Hwang also performs per-oral endoscopic myotomy (POEM), endoscopic mucosal resection (EMR) to resect large colorectal polyps, and endoscopic submucosal dissection (ESD) to resect early esophageal, gastric, and colorectal cancers.

    Dr. Hwang has both a clinical and research interest in improving the early detection of gastric cancer. He is the Principal Investigator of the GAstric Precancerous conditions Study (GAPS), a prospective study of patients with gastric intestinal metaplasia and other precancerous conditions which combines comprehensive clinical and endoscopic data with a large bio-specimen repository. His research group uses both epidemiologic and translational approaches to understand risk factors for gastric cancer, and develop biomarkers to improve the early diagnosis of gastric cancers. He also directed public policy efforts to increase recognition of gastric cancer risk among high-risk populations, and serve as the Chairperson of the Asian American Stomach Cancer Disparity Task Force.

    Dr. Hwang received his bachelor's degree from the University of Illinois at Champaign-Urbana in electrical engineering. He then received his M.D. degree from the University of Chicago and his Ph.D. in bioengineering from the University of Washington. He did his residency in internal medicine and fellowship in gastroenterology at the University of Washington and was a faculty member at the University of Washington from 2004 to 2017. He has been selected as one of “Seattle’s Top Doctors” by both Seattle Magazine and Seattle Metropolitan Magazine.

    Dr. Hwang is board certified in gastroenterology. He is active with local, national and international professional societies. He is a fellow of the American Society of Gastrointestinal Endoscopy (FASGE) and is a past-president of the Pacific Northwest Gastroenterology Society.

    In addition to his clinical activities, Dr. Hwang is interested in medical device innovation. Dr. Hwang actively participates in research related to treatment of pancreatic cancer with focused ultrasound. He currently has NIH funding to investigate the use of focused ultrasound for enhancing drug delivery to pancreatic tumors. He is the current president of the International Society for Therapeutic Ultrasound (ISTU).

  • Afrin N. Kamal MD

    Afrin N. Kamal MD

    Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology

    Bio Afrin Kamal is a board-certified gastroenterologist, who trained at Washington University in internal medicine, Cleveland Clinic in gastroenterology/hepatology, and most recently Stanford University in esophageal and motility diseases. Afrin shares a clinical passion in esophageal motility diseases with an an overlapping interest in health services and outcomes research.

  • Kian Keyashian

    Kian Keyashian

    Clinical Associate Professor, Medicine - Gastroenterology & Hepatology

    Bio The 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.

  • W. Ray Kim

    W. Ray Kim

    Professor of Medicine (Gastroenterology and Hepatology)

    Bio Chronic liver disease is one of the most common causes of premature death in Americans. My career goal is to improve the outcome of individuals with chronic liver disease by identifying the optimal means for diagnosis, monitoring, treatment and prevention. The path I have chosen to achieve this goal is through engagement in clinical epidemiology and patient-oriented, effectiveness research.

    Since the development of the MELD score which recognizes the importance of renal function in the prognosis of patients with end stage liver disease, one of the areas that we have had intense interest has been acute and chronic renal injury in patients undergoing liver transplantation. Liver transplantation represents a unique opportunity for research, because of the potential for reversal of the renal injury as well as access to biological materials.

  • Radhika Kumari

    Radhika Kumari

    Clinical Associate Professor, Medicine - Gastroenterology & Hepatology

    Bio Dr Kumari’s clinical interests lie in taking care of patients with Hepatitis C , cirrhosis and complications, liver cancer and management of post transplant patients. Her research interests are doing Translational research in Portal Hypertension and its complications.

  • Paul Kwo

    Paul Kwo

    Professor of Medicine (Gastroenterology and Hepatology)

    Bio Dr. 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.

  • Allison Kwong

    Allison Kwong

    Instructor, Medicine - Gastroenterology & Hepatology

    Current Research and Scholarly Interests Cirrhosis, portal hypertension, liver transplantation, transplant outcomes, organ allocation, population health, quality and systems improvement

  • Uri Ladabaum

    Uri Ladabaum

    Professor of Medicine (Gastroenterology and Hepatology)

    Current Research and Scholarly Interests Gastrointestinal cancer prevention and risk management. Risk stratification. Cost-effectiveness analysis. Health services research.

  • David Limsui

    David Limsui

    Clinical Associate Professor, Medicine - Gastroenterology & Hepatology

    Bio Throughout 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.

  • Anson Lowe

    Anson Lowe

    Associate Professor of Medicine (Gastroenterology and Hepatology), Emeritus

    Current Research and Scholarly Interests The laboratory is focused on the relationship between injury, wound healing, and cancer. Esophageal, gastric, and pancreatic cancers are a focus. We are particularly interested in the regulation of cell signaling by EGFR, the EGF receptor. In addition to cancer pathogenesis, active projects include the development of new diagnostic assays and drugs.

  • Linda Nguyen

    Linda Nguyen

    Clinical Professor, Medicine - Gastroenterology & Hepatology

    Current Research and Scholarly Interests My research interests focus on disorder of gastrointestinal motility. Specifically, those related to nausea and vomiting with or without gastroparesis, irritable bowel syndrome and chronic abdominal pain. My research focuses on understanding the cause of symptoms and development of new treatments targeting either symptom control and disease modification.

  • Mindie H. Nguyen, MD, MAS, AGAF, FAASLD

    Mindie H. Nguyen, MD, MAS, AGAF, FAASLD

    Professor of Medicine (Gastroenterology and Hepatology) and, by courtesy, of Epidemiology and Population Health

    Current Research and Scholarly Interests 1. Epidemiology and treatment outcomes of liver cancer focusing on screening, early diagnosis with novel markers, etiologies (viral and nonviral including NALFD).
    2. Epidemiology and treatment outcomes of chronic hepatitis B and C focusing on real-world cohorts, understudied populations, and HCV genotypes 4-6.
    3. Therapeutic clinical trials for chronic hepatitis B/C and NAFLD.
    4. Health disparities and ethnicity-related issues
    5. Global health: medical education, public health, and research

  • Tu Nguyen

    Tu Nguyen

    Adjunct Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology

    Bio Dr. Nguyen is board certified in Gastroenterology and Hepatology. He holds a clinical teaching appointment at the Stanford School of Medicine.

    Dr. Nguyen's expertise include all aspects of general gastroenterology and hepatology, but he has a particular interest in new imaging techniques in colon cancer screening, inflammatory bowel disease and irritable bowel syndrome. Dr. Nguyen is also performing fecal microbiota transplantation (stool transplants) for patients who suffer from chronic, relapsing Clostridium difficile infection and has had over 90% cure rate.

    In his free time, he enjoys traveling, golfing, skiing, hiking, healthy cooking and spending time with his family. He enjoys the personal rapport that he is able to establish with his patients and appreciate the opportunity to help them as best that he can.

  • Philip Okafor

    Philip Okafor

    Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology

    Current Research and Scholarly Interests I am a health services researcher who studies variations in access to health care resources, including under- and overutilization of available resources to see how these inequalities impact outcomes. I utilize large database methodologies to identify novel disparities with the goal of finding solutions that will improve health equity for all.

  • Walter Park

    Walter Park

    Associate Professor of Medicine (Gastroenterology and Hepatology)

    Current Research and Scholarly Interests Dr. 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.

  • Peter Poullos

    Peter Poullos

    Clinical Associate Professor, Radiology

    Bio Dr. Poullos is a native of Stockton California. He attended Santa Clara University where he earned his BS in Biology. He received his M.D. degree at the University of Texas Medical School at Houston, after which he did Internal Medicine residency at the University of California-San Francisco, finishing in 2002. He stayed at UCSF as a Gastroenterology fellow until 2004. However, after a spinal cord injury, he decided to retrain in Radiology. He did his Radiology residency at Stanford University, where he also completed a fellowship In Body Imaging in 2009. Dr. Poullos is now faculty in both the departments of Radiology and Gastroenterology and Hepatology. His clinical practice is at the Stanford University Medical Center, where he interprets CT, MRI, and ultrasound primarily of the abdomen and pelvis. His interests include radiology of the acute abdomen, hepatobiliary imaging, and colorectal cancer screening.

    Dr. Poullos is Founder and Executive Director of the Stanford Medicine Abilities Coalition (SMAC), a group composed of people with disabilities and their allies at Stanford Medicine. He is also a member of the Radiology Department Diversity Committee, the School of Medicine Faculty Senate Subcommittee on Diversity, and the School of Medicine Diversity Cabinet.

  • Atulkumar T. Shah, MD

    Atulkumar T. Shah, MD

    Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology

    Bio Dr. Shah is a board-certified, fellowship-trained gastroenterologist with Stanford Health Care’s Digestive Health program. He is a clinical associate professor of medicine in the division of Gastroenterology and Hepatology at Stanford University School of Medicine.

    Dr. Shah treats all gastrointestinal and liver conditions, such as gastroesophageal reflux disease (GERD), colon polyps, hepatitis, inflammatory bowel disease, and irritable bowel syndrome. He has a special interest in the increasingly prevalent fatty liver disease, which allows him to work closely with patients to educate them about symptom management and making lifestyle changes that will improve their health and wellbeing.

    Dr. Shah treats all gastrointestinal and liver conditions, such as gastroesophageal reflux disease (GERD), colon polyps, hepatitis, inflammatory bowel disease, and irritable bowel syndrome. He has a special interest in the increasingly prevalent fatty liver disease, which allows him to work closely with patients to educate them about symptom management and making lifestyle changes that will improve their health and wellbeing.

    After more than two decades of practice, Dr. Shah added training in liver transplant to expand his knowledge of liver disease and offer his patients a “one-stop” resource for truly comprehensive care.

    Dr. Shah is a member of the American College of Gastroenterology, American Society of Gastrointestinal Endoscopy, and American Association for the Study of Liver Disease.

    Among Dr. Shah’s current research interests is the development of an algorithm assessing the impact of gastrointestinal disease management on readmission rates.

    Dr. Shah brings a personalized approach to working with patients and to teaching the next generation of physician scientists the classic skills of careful listening and patient examination. Throughout his career, he has emphasized the fundamental importance of balancing scientific expertise with empathy and compassion.

    As a volunteer with the non-profit organization Health Volunteers Overseas, Dr. Shah travels around the world to train physicians about liver disease management and treatment. He is director of the HVO site in Bangalore, India.

  • Sundeep Singh

    Sundeep Singh

    Clinical Associate Professor, Medicine - Gastroenterology & Hepatology

    Bio After 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

    Sidhartha Sinha

    Assistant Professor of Medicine (Gastroenterology and Hepatology)

    Current Research and Scholarly Interests There 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

    Irene Sonu

    Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology

    Bio I 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.

  • Sarah Streett

    Sarah Streett

    Clinical Professor, Medicine - Gastroenterology & Hepatology

    Bio Dr. Sarah Streett is the Clinical Director of Inflammatory Bowel Disease at Stanford and is passionate about taking care of people with IBD. She is a national expert in the treating of complex IBD and is expanding our services to offer multi-disciplinary care and opportunities for clinical research participation. In 2018 she received the Champion of Hope Award from the Crohn’s and Colitis Foundation and serves on their Medical Advisory Board. Her interests are in fertility and pregnancy in people with IBD, developing precision approaches to IBD therapy, and in the role that the microbiome and diet play its pathogenesis. She is one of the investigators in 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.

    Dr. Streett has a national leadership role in the American Gastroenterological Association, where has been Chair of the Practice Management and Economics Committee, as well as Chair of the AGA’s initiatives on Obesity. She currently serves on the Government Affairs Committee and is a special government employee 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 patient’s personalized care based on the latest therapies for the treatment of IBD.

  • George Triadafilopoulos

    George Triadafilopoulos

    Clinical Professor, Medicine - Gastroenterology & Hepatology

    Current Research and Scholarly Interests My primary research interest concerns factors involved in the pathogenesis of gastro-esophageal reflux disease and its complications, such as Barrett's esophagus and the role of diagnostic and therapeutic modalities in their management.

  • Thomas Zikos

    Thomas Zikos

    Clinical Assistant Professor, Medicine - Gastroenterology & Hepatology

    Bio I am initially a Pittsburgh, PA native, but have been at Stanford University since 2012 for residency, fellowship, and now as faculty. It is exciting to be affiliated with one of the most dynamic and innovative medical institutions worldwide.

    My clinical and research interests focus on functional, motility, and esophageal disorders of the gastrointestinal tract. Outside of this sub-sub specialization, a significant portion of my practice is also devoted to the care of a broad range of “general gastroenterology” concerns.

    Functional, motility, esophageal, and general gastroenterology disorders are very common, and can cause significant disability. Some examples include irritable bowel syndrome, functional dyspepsia, gastroparesis, chronic nausea, chronic constipation, achalasia, and gastroesophageal reflux disease.

    Despite the common nature of these disorders, many are not well understood, leading to frustration among both patients and clinicians alike. Furthermore, there is an incorrect stigma associated with some of these disorders that “it is all in your head.” On the opposite side of the spectrum, there is sometimes an incorrect assumption that we will be able to pinpoint an exact underlying cause in all cases, but this is not possible with current technology. We aim to bridge this gap using the latest diagnostic testing and treatment paradigms, as well as a healing hand. Additionally, our group is actively engaged in multiple research projects and studies to drive the future of the field.

    Though I am early in my career, I am hoping that by the end the field will look nothing like it does today. I am hopeful, and I believe that we can revolutionize the field to better characterize gastrointestinal disorders, and come up with highly effective targeted treatments.

Latest information on COVID-19