The Fellowship Programs of the Division of Gastroenterology provide a rigorous foundation in patient care, research, and teaching for talented individuals committed to careers in academic gastroenterology.

Current Fellows

Jennifer Chen, MD
Medical School
: Harvard Medical School
Residency: Brigham and Women’s Hospital
Year Started Fellowship: 2012
Primary Research Mentor:  Alan Mullen
Clinical/Research Interest:  TGF Beta signaling in hepatic fibrosis
Publications: J Infect Dis, Gastroenterology, J AIDS

Michael Dougan, MD, PhD
Medical School: Harvard Medical School
Residency: Massachusetts General Hospital
Year Started Fellowship: 2013
Clinical/Research Interest: Mucosal immunology

Manish Gala, MD
Medical School
: Harvard Medical School
Residency: Stanford University
Year Started Fellowship: 2009
Primary Research Mentor: Daniel Chung
Clinical/Research Interest: My clinical interest includes patients with familial cancer syndromes. My research is currently focused on novel regulators of angiogenesis in tumor development.
Awards/Grants: Fellows Award for Excellence in Clinical Teaching in Medicine, ACG GI Jeopardy Champion 2013
PublicationsAm J Physiol Gastrointest Liver Physiol, J Biol Chem, Nat Med

Russell Goodman, MD, PhD
Medical School: Harvard Medical School
Residency: Brigham and Women's Hospital
Year Started Fellowship: 2013
Clinical/Research Interest: I'm interested in the genetic determinants of various types of liver disease, and in particular cirrhosis.

Dmitriy Kedrin, MD, PhD
Medical School: Albert Einstein College of Medicine of Yeshiva University
Residency: Beth Israel Deaconess Medical Center
Year Started Fellowship: 2013
Clinical/Research Interest: Endoscopy, Barrett's esophagus, dysplasia, metastatic colon cancer

Lindsay King, MD
Medical School: University of Virginia
Residency: Brigham and Women's Hospital
Chief Residency: Brigham and Women’s Hospital, 2011-12
Year Started Fellowship: 2010
Primary Research Mentor: Andrew Chan, Raymond Chung
Clinical/Research Interest: My clinical and research interests are in general hepatology and transplant hepatology.
Awards/Grants: Fellows Award for Excellence in Clinical Teaching in Medicine 
Publications: Gastroenterology, J Hepatol 

Gauree Gupta Konijeti, MD, MPH
Medical School
: University of Pennsylvania School of Medicine
Residency: Cedars-Sinai Medical Center and Greater Los Angeles VA
Year Started Fellowship: 2011
Primary Research Mentor: Andrew T. Chan, Ashwin Ananthakrishnan
Clinical/Research Interest: Inflammatory Bowel Disease
Awards/Grants: 2013 Fellowship2Leadership Salix Fellows’ Program Travel Grant Award, 2013 North American Conference of Gastroenterology Fellows Award, American College of Gastroenterology, Harvard Medical School Excellence in Teaching Award
Publications: Gastroenterology 

Annie J. Kruger, MD, PhD
Medical School: University of Massachusetts Medical School
Residency: Massachusetts General Hospital
Year Started Fellowship: 2013
Clinical/Research Interest: I am primarily interested in the management of the immune response following orthotopic liver transplantation. I am also interested in studying the mechanisms of NAFLD development in obese patients. 

Jay Luther, MD
Medical School
: SUNY Upstate Medical University
Residency: University of Michigan
Year Started Fellowship: 2011
Primary Research Mentor:  Raymond Chung, Suraj J. Patel
Clinical/Research Interest: Translational research in liver disease
Publications: Am J Physiol Gastrointest Liver Physiol, Gut Microbes, Inflammatory Bowel Disease, Gastroenterology, Am J Gastro 

Daniel L. Motola, MD, PhD
Medical School/PhD
: UT Southwestern Medical Center at Dallas
Residency: The Mt. Sinai Hospital
Year Started Fellowship: 2010
Primary Research Mentor:  Bruce Spigelman
Clinical/Research Interest: Non-alcoholic fatty liver disease
Publications: Cell Stem Cell, J Biol Chem, Cell 

Joanna M. Peloquin, MD
Medical School
:  Mayo Medical School
Residency:  Johns Hopkins Hospital
Chief Residency: Johns Hopkins Hospital, 2011-12
Year Started Fellowship: 2010
Primary Research Mentor:  Ramnik J. Xavier
Clinical/Research Interest: Inflammatory bowel disease, mucosal immunity
Awards/Grants: Fellows Award for Excellence in Clinical Teaching in Medicine
Publications: Anaerobe, J Gen Intern Med, Dysphagia, Med Teach, Am J Gastroenterol, Genomics 

Ruma Rajbhandari, MD, MPH
Medical School
: Harvard Medical School
Residency: Brigham and Women’s Hospital
Year Started Fellowship: 2012
Primary Research Mentor: Raymond Chung
Clinical/Research Interest: Viral hepatitis, global health
Publications: Global Health, BMJ Qual Safety 

Amandeep Singh, MD, PhD
Medical School
: Weill Cornell Medical College
Residency: University of Pennsylvania
Year Started Fellowship: 2012
Primary Research Mentor:  Lee Kaplan
Clinical/Research Interest: Obesity
Publications: PNAS 

Kyle Staller, MD
Medical School
: Harvard Medical School
Residency: Massachusetts General Hospital
Year Started Fellowship: 2012
Primary Research Mentor: Braden Kuo
Clinical/Research Interest: Gastrointestinal motility disorders, general gastroenterology
Awards/Grants: Fellows Award for Excellence in Clinical Teaching in Medicine
Publications: J Clin Gastroenterol 

Harry J. Thomas, MD
Medical School
: University of Oxford
Residency: Massachusetts General Hospital
Year Started Fellowship: 2011
Primary Research Mentor: Ramnik Xavier
Clinical/Research Interest: Inflammatory bowel disease
Awards/Grants: ACG GI Jeopardy Champion 2013
Publications: Scand J Gastroenterol, Eur J Gastroenterol Hepatol 

C. Giovanni Traverso, MB, BChir, PhD
Medical School
:  Medical School: University of Cambridge (UK)
PhD: Johns Hopkins University
Residency: Brigham and Women's Hospital
Year Started Fellowship: 2009
Primary Research Mentor: Robert S. Langer
Clinical/Research Interest:  My research is focused on the development of novel technologies for drug delivery via the GI tract.
Awards/Grants: Deshpande Innovation Award from the Deshpande Institute at MIT, Clinical Fellow Excellence in Teaching Award – MGH Housestaff, ACG Clinical
Research Award, 2011 - MIT - Deshpande Ignition Award for an ultrasound-emitting pill for drug delivery.
Publications: NEJM 

Ying Wu, MD
Medical School
: Harvard Medical School
Residency: Stanford University Hospital
Year Started Fellowship: 2011
Primary Research Mentor: Raymond Chung
Clinical/Research Interest: I'm interested in research that improves health care delivery and outcomes for patients with liver disease. Specifically, the two projects I'm working on this year are: 1. Preventing Re-admissions for patients with cirrhosis: A Proactive Care Management initiative. 2. Adherence to management guidelines for Hepatitis B; Assessment of treatment outcomes and natural history of chronic hepatitis B infection
Awards/Grants: Bristol Myers Squibb Virology Fellowship
Publications: Digestive Diseases and Sciences 

Recent Graduates

Barham Abu Dayyah, MD
Prior Degree(s)
: MD 2005 – Brown Medical School
Year Completed Fellowship: 2011
Prior Mentor(s): Christopher Thompson, Lee Kaplan
Degree(s) Obtained: MPH 2010 – Harvard School of Public Health
Current Position: Advanced Endoscopy Fellow, Mayo Clinic
Publications: Clinical Gastroenterology and Hepatology, Gastroenterology
Research Summary: Novel endoscopic techniques and devices for the primary treatment of obesity and revision of gastric bypass surgery. 

Vincent Aguirre, MD, PhD
Prior Degree(s)
: MD, PhD 2002 – Harvard Medical School
Year Completed Fellowship: 2008
Research Support: UTSMC Scholars Award, NIDDK K award
Prior Mentor(s): Lee Kaplan
Current Position: Assistant Professor of Medicine, University of Texas Southwestern Medical Center, Division of Digestive and Liver Diseases and the Center for Hypothalamic Research
Publications: Obesity and Gastrointestinal Endoscopy.
Research Summary: Dr. Aguirre joined the faculty of University of Texas Southwestern Medical Center, where he continues to dedicate 80% of his effort to his research in animal models of bariatric surgery, obesity, and diabetes.

Karin Andersson, MD
Prior Degree(s)
: MD 2000 – Yale University
Year Completed Fellowship: 2008
Prior Mentor(s): Raymond Chung, Sue Goldie, Joshua Salomon
Degree(s) Obtained: MPH 2007 – Harvard School of Public Health
Current Position: Assistant Professor of Medicine, Massachusetts General Hospital
Publications: Clinical Gastroenterology and Hepatology
Research Summary: Dr. Andersson joined the faculty of Massachusetts General Hospital where she is currently an Attending Hepatologist.  She is continuing her research defining cost-effective, first-line therapy for treatment of chronic hepatitis B virus infection and actively participates in the Harvard Clinical and Translational Science Center. 

Jakob Begun, MD, PhD
Prior Degree(s): MD, PhD 2007 - Harvard Medical School
Year Completed Fellowship: 2013
Research Support: CCFA Fellowship Award
Prior Mentor(s): Ramnik Xavier
Current Position: Advanced Inflammatory Bowel Disease Fellow, Massachusetts General Hospital
Publications: Cell Host & Microbe
Research Summary: Using a combination of techniques including expression analysis from human samples, cellular based assays, and RNAi I have explored the role of antibacterial autophagy in the pathogenesis of Crohn's disease and the effect of human genetic polymorphisms on this pathway.

Elisa Boden, MD
Prior Degree(s)
: MD 2003 – University of Chicago
Year Completed Fellowship:  2009
Prior Mentor(s): Scott Snapper
Current Position: Physician, Virginia Mason Medical Center
Investigator, Benaroya Research Institute
Publications: Current Opinion in Gastroenterology
Research Summary: Aberrant regulatory T cell homeostasis in murine colitis.

Abraham Brass, MD, PhD
Prior Degree(s)
: PhD 1998, MD 2001 – University of Chicago
Year Completed Fellowship: 2006
Research Support: CCFA Research Fellowship Award, HMS Center for AIDS Research (CFAR) Grant, Bill & Melinda Gates Foundation Grant, NIH
Prior Mentor(s): Stephen Elledge
Current Position: Assistant Professor in the Microbiology and Physiological Systems Dept, University of Massachusetts
Publications: Science, Nature, Proceedings of the National Academy of Sciences, Cell.
Research Summary: Dr. Brass was until recently an Assistant Immunologist in the Ragon Institute of MGH, MIT, and Harvard, where he is supported by a grant from the Bill and Melinda Gates Foundation. He is currently studying the IFITM family of anti-viral proteins; the role of host dependency factors during HIV infection; host mediators of hepatitis C infection; and the development of novel genetic screens for determinants of viral infection.  He is dedicating 100% of his effort to research.

Peter Carolan, MD
Prior Degree(s)
: MD 2004 – Columbia University College of Physicians and Surgeons
Year Completed Fellowship: 2011
Prior Mentor(s): Douglas Melton
Current Position: Graduate Assistant in Medicine
Publications: Journal of Cell Biology, Development, PNAS
Research Summary: Patients with diabetes have significant complications despite our best available therapies. Although pancreatic islet transplantation has the potential to correct the underlying disease, the paucity of donors and the need for lifelong immunosuppression limits its usefulness. Embryonic stem cells and induced pluripotent stem cells hold the promise of solving both of these problems. In the lab of Doug Melton, I am studying the signals that guide embryonic pancreas development and applying this information to the differentiation of mouse embryonic stem cells with the goal of improving our ability to efficiently differentiate functionally mature beta cells.

Kathleen Corey, MD
Prior Degree(s)
: MD 2003 – Duke University
Year Completed Fellowship: 2011
Research Support: ACG Clinical Research Pilot Grant, AASLD Advanced Hepatology Fellowship, NIH K award
Prior Mentor(s): Raymond Chung
Current Position: Instructor in Medicine, Massachusetts General Hospital
Publications: Liver International, Journal of Gastroenterology, Infection Control and Hospital Epidemiology, Journal of Viral Hepatitis, Digestive Diseases and ciences, Hepatology.
Research Summary: Dr. Corey’s research focuses on 1) the relationship between hepatitis C infection and lipid metabolism and 2) the impact of host factors on hepatic fibrosis. 

Andrew S. deLemos, MD
Prior Degree(s)
: MD 2005 University of Pennsylvania School of Medicine
Year Completed Fellowship: 2013
Prior Mentor(s): Raymond Chung
Current Position: Transplant Hepatologist, Carolinas Medical Center, Charlotte, NC
Publications: Diabetologia, Clin Liver Dis

John Garber III, MD
Prior Degree(s)
: MD 2003 – University of Southern California
Year Completed Fellowship: 2012
Research Support: K08, Crohn's and Colitis Foundation of America Career Development Award
Prior Mentor(s): Scott Snapper, MD, PhD, John Leong, MD, PhD
Current Position: Instructor in Medicine, Harvard Medical School
Publications: Journal of Clinical Investigation, Infection and Immunity
Research Summary: The major focus of my research effort has been to understand how factors that regulate the actin cytoskeleton influence the stability and dynamic function of intercellular junctions within the intestinal epithelium

Nitin Gupta, MD
Prior Degree(s)
: MD 2007 - Vanderbilt University School of Medicine
Year Completed Fellowship: 2013
Prior Mentor(s): Nicholas Stylopoulos
Current Position: Assistant Professor, Director of Inflammatory Bowel Disease, University of Mississippi
Publications: Inflammatory Bowel Disease, Am J Gastroenterol, Am J of Surg Path
Research Summary: I am interested in obesity and inflammatory disorders.  Specifically, I am interested in the clinical and translational applications of roux-en-y gastric bypass surgery through the study of animal and human models.

Alexandra Gutierrez, MD
Prior Degree(s)
: MD 2000 – Case Western Reserve
Year Completed Fellowship: 2006
Prior Mentor(s): Daniel Podolsky, Bruce Sands
Degree(s) Obtained: MPH 2006 – Harvard School of Public Health
Current Position: Assistant Professor of Medicine, Washington University
Publications: Digestion, Clinical Gastroenterology and Hepatology, American Journal of Gastroenterology, Gastrointestinal Endoscopy.
Research Summary: Dr. Gutierrez serves as a clinician investigator treating Crohn’s Disease and ulcerative colitis.  Her research interests include the development new therapies for conditions relating to IBD.

Wendy Ho, MD
Prior Degree(s)
: MD 2002 – Albert Einstein Medical College
Year Completed Fellowship: 2008
Prior Mentor(s): Andrew Chan, Chin Hur
Degree(s) Obtained: MPH 2008 – Harvard School of Public Health
Current Position: Assistant Professor, UCLA Department of Medicine, Digestive Diseases
Publications: American Journal of Radiology, Gastrointestinal Endoscopy, PLOS One
Research Summary: Dr. Ho joined the faculty of UCLA in 2008.  She specializes in general gastroenterology and has clinical expertise in inflammatory bowel disease, irritable bowel syndrome, gastroesophageal reflux disease, esophagitis, gastritis, ulcer disease, colorectal disorders, motility disorders, pancreatitis, colorectal cancer screening, colonoscopy and endoscopy.

Edward S. Huang, MD
Prior Degree(s)
: MD 2004 - University of Pennsylvania
Year Completed Fellowship: 2011
Prior Mentor(s): Andrew T. Chan
Degree(s) Obtained: MPH 2010 – Harvard School of Public Health
Current Position: Physician, Good Samaritan, CA
Publications: PLOS One, American Journal of Medicine
R
esearch Summary: The epidemiology of gastrointestinal bleeding and peptic ulcer disease.

Hamed Khalili, MD, MPH
Prior Degree(s)
: MD 2006 – University of Texas – Southwestern Med Ctr
Year Completed Fellowship: 2013
Research Support: CCFA, AGA Research Scholars Award, NIH K23
Prior Mentor(s): Andrew T. Chan
Degree(s) Obtained: MPH 2012 – Harvard School of Public Health
Current Position: Assistant in Medicine, Massachusetts General Hospital
Publications: Cancer Epidemiology, Biomarkers & Prevention, BMJ, Journal of Clinical Oncology, The American Journal of Gastroenterology, Gastroenterology, Annals of Internal Medicine, Gut, Clinical Gastroenterology and Hepatology, Inflammatory Bowel Disease
Research Summary: I am interested in clinical and translational research in the field of inflammatory bowel disease (IBD). Specifically, my research interests are to better understand and define environmental factors, particularly dietary, reproductive, and lifestyle factors, and their interplay with common genetic risk loci and gut microbial environment on risk and progression of IBD.

Alan C. Mullen, MD, PhD
Prior Degree(s)
: PhD 2002 - University of Pennsylvania, Immunology Graduate Group, MD 2004 - University of Pennsylvania School of Medicine
Year Completed Fellowship:  2011
Research Support: NIDDK K08 Award
Prior Mentor(s): Richard Young, Ph.D. Whitehead Institute for Biomedical Research
Current Position: Instructor of Medicine, Harvard Medical School; Assistant in Medicine, Massachusetts General Hospital, GI Unit
Publications: Cell
Research Summary: TGF-beta signaling is required for embryonic stem cells maintenance and for early development.  My research focuses on understanding how TGF-beta signaling directs different responses in these different cell types.

Deanna Nguyen, MD
Prior Degree(s)
: MD 2001 – Harvard Medical School
Year Completed Fellowship: 2008
Research Support: NIDDK K08 award
Prior Mentor(s): Scott Snapper
Current Position: Instructor in Medicine, Massachusetts General Hospital
Publications: Journal of Leukocyte Biology, Journal of Experimental Medicine, Gastroenterology
Research Summary: Dr. Nguyen continues to dedicate 80% of her time to conducting research within the Massachusetts General Hospital Gastrointestinal Unit.  In September of 2009 she received a K08 award to continue her research deciphering the pathogenesis of colitis in Wiskott-Aldrich syndrome protein (WASP) knockout mice. 

Lee Peng, MD, PhD
Prior Degree(s)
: PhD, MD 2001 – Harvard Medical School
Year Completed Fellowship: 2008
Research Support: AGA Research Scholars Award, K08 NIDDK
Prior Mentor(s): Raymond Chung, Stuart Schreiber
Current Position: Instructor in Medicine, Massachusetts General Hospital
Publications: Journal of Organic Chemistry, Gastroenterology, Antimicrobial Agents and Chemotherapy, Cell Host and Microbe, Nature Chemical Biology, Journal of Virology, Journal of Hepatology, Journal of Biological Chemistry, Journal of Infectious Disease
Research Summary: Dr. Peng is a basic and translational investigator interested in using chemical biology and synthetic organic chemistry to enhance our understanding of viral hepatitis and to assist in the development of novel therapies.

Anna Rutherford, MD
Prior Degree(s)
: MD 2000 – Harvard Medical School
Year Completed Fellowship:  2007
Prior Mentor(s): Raymond Chung
Degree(s) Obtained: MPH 2006 – Harvard School of Public Health
Current Position: Instructor in Medicine, Clinical & Transplant Hepatologist, Brigham and Women’s Hospital
Publications: Clinical Gastroenterology and Hepatology
Research Summary: Dr. Rutherford joined the faculty at the Brigham and Women’s Hospital Gastroenterology Division as an Instructor in Medicine in July 2007.  She is continuing her research on serum apoptosis markers in Acute Liver Failure and actively participates in the Harvard Clinical and Translational Science Center.

Esperance A. K. Schaefer, MD, MPH
Prior Degree(s)
: MD, MPH 2006 – Columbia University
Year Completed Fellowship: 2013
Research Support: NIH F32 Fellowship Award
Prior Mentor(s): Raymond Chung
Current Position: Assistant in Medicine, Massachusetts General Hospital; Instructor, Harvard Medical School
Publications: J Infect Disease, J Am Chem Soc, Gastroenterology, J Virol, Cell Stem Cell
Research Summary: My research investigates the roles of microRNAs and lipid metabolism in liver diseases, specifically HCV infection and non-alcoholic fatty liver disease.

Elizabeth Speliotes, MD, PhD
Prior Degree(s)
: PhD 2001 – MIT; MD 2001 – Harvard Medical School
Year Completed Fellowship: 2011
Research Support: NIDDK K23
Prior Mentor(s): Joel Hirschhorn
Degree(s) Obtained: MPH 2008 – Harvard School of Public Health
Current Position: Assistant Professor, University of Michigan Health System
Publications: Science, Nature Genetics, Journal of Gastroenterology and Hepatology, and Gastroenterology.
Research Summary: Dr. Speliotes research is in the genetics of common obesity and nonalcoholic fatty liver disease.

Andrew Tai, MD, PhD
Prior Degree(s)
: MD/PhD 2002 – Weill Cornell Graduate School of Medical Sciences
Year Completed Fellowship: 2009
Research Support: NIH K08 award, R01 award
Prior Mentor(s): Raymond Chung
Current Position: Assistant Professor, University of Michigan Health System
Staff Physician, Ann Arbor Veterans Administration Health Systems
Publications: Gastroenterology, Journal of Hepatology, Cell Host and Microbe
Research Summary: Dr. Tai joined the faculty of the University of Michigan Health System, Department of Medicine in 2009.  He continues to dedicate 90% of his effort to research on hepatitis C virus (HCV) with a focus on characterizing the molecular mechanisms by which host (human) cofactors support HCV replication.

Brian Turner, MD
Prior Degree(s)
: MD 2004 – Harvard University
Year Completed Fellowship:  2010
Prior Mentor(s): William Brugge
Current Position: Assistant Attending Physician, New York-Presbyterian Hospital/Weill Cornell Medical Center
Assistant Professor of Medicine, Weill Medical College of Cornell University
Publications: Gastrointestinal Endoscopy, Surgical Endoscopy
Research Summary: Dr. Brian Turner is a board certified gastroenterologist and advanced fellowship trained interventional gastroenterologist who is an Assistant Attending Physician at the New York-Presbyterian Hospital/ Weill Cornell Medical Center and Assistant Professor of Medicine at the Weill Medical College of Cornell University.

Field Willingham, MD, MPH
Prior Degree(s)
: MPH 1996, MD 2001 – University of Maryland
Year Completed Fellowship: 2009
Prior Mentor(s): William Brugge
Current Position: Assistant Professor of Medicine and Director of Endoscopy, Emory University School of Medicine
Publications: Gastrointestinal Endoscopy
Research Summary: Dr. Willingham joined the faculty of Emory University in 2009 where he continues to dedicate 50% of his effort to clinical research.  He continues to study the diagnosis and management of Barrett’s esophagus.

Kevin E. Woods, MD
Prior Degree(s)
: Meharry Medical College, MD
Year Completed Fellowship: 2011
Prior Mentor(s): William Brugge
Degree(s) Obtained: MPH 2010 – Harvard School of Public Health
Current Position: Advanced Endoscopy Fellow, Massachusetts General Hospital/Brigham & Women's Hospital
Publications: Dig Dis Sci, World J. Gastrointest Endosc
Research Summary: My clinical interests are interventional endoscopy and the endoscopic management of Barrett’s esophagus.  My research is focused on the use of advanced endoscopic imaging technologies in the early detection and removal of gastrointestinal malignancies.

Patrick Yachimski, MD
Prior Degree(s)
: MD 2002 – Harvard Medical School
Year Completed Fellowship:  2010
Research Support: ASGE Award
Mentor(s): William Brugge, Chin Hur
Degree(s) Obtained: MPH 2008 – Harvard School of Public Health
Current Position: Assistant Professor in Medicine, Division of Gastroenterology, Hepatology and Nutrition, Vanderbilt University Medical Center
Publications: Clinical Gastroenterology and Hepatology, Digestive Diseases and Science, Gastrointestinal Endoscopy, American Journal of Gastroenterology, Archives of Internal Medicine, Journal of Microscopy.
Research Summary: Dr. Yachimski joined the faculty of Vanderbilt University in 2009, where he continues to focus on interventional endoscopy, including ERCP, endoscopic ultrasound, endoscopic diagnosis and therapy of Barrett’s esophagus, and endoluminal stenting.  He is planning to develop clinical research protocols in each of these areas. He also worked with other faculty to develop the Advanced Endoscopy fellowship at Vanderbilt, which will begin in July 2010.