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George Kunnackal John, MBBS, MSc, MSc

Academic Title:

Adjunct Assistant Professor

Primary Appointment:



511 Idlewild Avenue, Easton, MD 21601

Phone (Primary):

(410) 822-6005



Education and Training

  • John’s Medical College, MBBS, 2009
  • University of Oxford, MSc, Global Health Science, 2011
  • University of Oxford, MSc (R), Clinical Medicine, 2012
  • Johns Hopkins Bayview Medical Center, Residency, Internal Medicine, 2015
  • Johns Hopkins Hospital, Fellowship, Gastroenterology and Hepatology, 2018


Dr. John is a general gastroenterologist based in Easton, MD who has a keen interest in clinical research and evidence based care. He received his Bachelor of Medicine, Bachelor of Surgery degree from St. John's Medical College and Hospital in Bangalore, India where he graduated with distinction and was awarded the Pope Paul VI Gold Medal and award for best graduating medical student. He was awarded the Rhodes scholarship in 2010 and went on to earn a Master's degree in global health science with distinction and a Master's degree of research in clinical medicine from Oxford University following which Dr. John came to Baltimore to complete his medical training at Johns Hopkins University. He joined UM Shore Medical Group in 2018.

Dr. John’s research areas of interest are epidemiology and clinical outcomes in general gastroenterology, gut microbiome, quality improvement and hereditary polyposis syndromes. He has presented multiple abstracts at national conferences and authored several publications.

Students and trainees are encouraged to email Dr. John if interested to pursue short term research projects.

Research/Clinical Keywords

general gastroenterology, hereditary polyposis syndromes, lynch syndrome, bowel preparation, colon cancer screening, gastrointestinal dysmotility

Highlighted Publications

John G.K.., Thuluvath, A.J., Carrier, H., Ahuja, N., Gupta, E., Stein, E., Poor Health Literacy and Medication Burden Are Significant Predictors for Inadequate Bowel Preparation in an Urban Tertiary Care Setting. Journal of Clinical Gastroenterology. 2019 53(9) 382-386

John G.K., Villgran, V., Caufield-Noll, C., Giardiello, F. Comparison of Universal Screening for Lynch Syndrome in Colorectal and Endometrial Cancer Around the World: A Systematic Review and Pooled Analysis. Gastroenterology 2018 May 154: 6 S790-791

John G.K., Wang L., Nanavati J., Singh R., Mullin G.E., Dietary alteration of the gut microbiome and its impact on weight and fat mass: A systematic review and meta-analysis. Genes. 2018 9(3), 167

John, G.K., Singh, V.K., Moran, R.A., Warren, D., Sun, Z., Desai, N., Walsh, C., Kalyani, R.R., Hall, E., Hirose, K., Makary, M.A., Stein E. M.. Chronic Gastrointestinal Dysmotility and Pain Following Total Pancreatectomy with Islet Autotransplantation for Chronic Pancreatitis. J Gastrointest Surg 2017 Apr; 21(4): 622-627.

Awards and Affiliations

2004 Dr. Manjunath Nayak memorial award for highest marks in Biochemistry

2004 Dr. F.H. Noronha award for best MBBS student in St. John’s Medical College

2006 Dr. F.H. Noronha award for best MBBS student in St. John’s Medical College

2006-2007 Dr. Sr. Glowrey JMJ Scholarship

2006 Mrs. LititiaMisquith award for Catholic student obtaining highest marks in 2nd year

2006 Pio &Arinda Monteiro memorial prize for highest marks in Pathology

2006 Joseph Saldanha memorial prize for highest marks in Microbiology

2007 Dr. Chitra Stephen Solomon Memorial Gold Medal for Community Health

2007 SJMCH Bank of Baroda Prize for highest marks in Community Health

2007-2008 Catholic Medical Guild of St. Luke Bombay Prize for highest marks in 3rd year MBBS

2007-2008 Mrs. LititiaMisquith award for Catholic student obtaining highest marks in 3rd year

2009 St. John’s Medical College Research Society Merit Certificate for best research paper

2009 Certificate of Honor (Academic) for best outgoing MBBS student

2010-2012 Rhodes Scholarship

2011 Dr. and Mrs. Menino D’ Souza prize for best male medical student

2011 Pope Paul VI Gold Medal and award for best outgoing medical student

2011 St. Edmund Hall-University of Oxford travel grant

2012 St. Edmund Hall-University of Oxford travel grant

2012 Rhodes Trust travel grant for research

2014 American Pancreatic Association Young Investigator Award

2015 Nominated to the Alpha Omega Alpha national medical honor society

2016 American Gastroenterological Association – GRG Fellow Abstract Prize

2017 Johns Hopkins Physician Scientist Training Program Scholar