Hiroshi Mashimo, MD, PhD
Adjunct Assistant Professor
Boston University School of Medicine
Dept of Medicine

MD, Albert Einstein College of Medicine
PhD, Albert Einstein College of Medicine
MS, Yeshiva University

Hiroshi Mashimo is currently Chief of Gastroenterology at the VA Boston Healthcare System, Assistant Professor of Medicine at Harvard Medical School and Adjunct Assistant Professor Of Medicine at Boston University School of Medicine. He obtained his A.B. at Harvard College and his M.S., M.D. and Ph.D. degrees at Albert Einstein College of Medicine. He completed his medical internship, residency, and gastroenterology fellowship at Massachusetts General Hospital. His interest in molecular physiology led to advanced research and clinical training at Harvard Medical School, with Dr Daniel K. Podolsky and Dr Mark C. Fishman at Massachusetts General Hospital, and with Dr Raj K. Goyal at Beth Israel Hospital. His pioneering work using genetically altered mice models to understand basic gastrointestinal physiology has led to important understandings of the distinct roles of various mediators such as nitric oxide synthases and vasoactive intestinal peptides in the field of gastrointestinal motility. He has continued his interest in clinical gastrointestinal motility as Director of the Swallowing and Motility Disorders services at the VA Boston Healthcare, and is involved with training and teaching of students, residents and fellows at Brigham and Women's Hospital, the VA Boston Healthcare, and Harvard Medical School. He has published numerous original and review articles in various medical and scientific journals.

VA Boston Healthcare System

Yr Title Project-Sub Proj Pubs
2018 Optical Biopsy Using Optical Coherence Tomography 5R01CA075289-21 142
2017 Optical Biopsy Using Optical Coherence Tomography 5R01CA075289-20 142
2016 Optical Biopsy Using Optical Coherence Tomography 5R01CA075289-19 142
2015 Optical Biopsy Using Optical Coherence Tomography 5R01CA075289-18 142
2014 Optical Biopsy Using Optical Coherence Tomography 2R01CA075289-17 142
2013 Stem cells for novel gene delivery of nitric oxide in the gut 5I01BX000663-04 3
2012 Stem cells for novel gene delivery of nitric oxide in the gut 5I01BX000663-03 3
2011 Stem cells for novel gene delivery of nitric oxide in the gut 5I01BX000663-02 3
2011 Stem cells for novel gene delivery of nitric oxide in the gut 5I01BX000663-02 3
2009 Stem cells for novel gene delivery of nitric oxide in the gut 1I01BX000663-01 3
Showing 10 of 12 results. Show All Results
Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.

  1. Ahsen OO, Liang K, Lee HC, Wang Z, Fujimoto JG, Mashimo H. Assessment of chronic radiation proctopathy and radiofrequency ablation treatment follow-up with optical coherence tomography angiography: A pilot study. World J Gastroenterol. 2019 Apr 28; 25(16):1997-2009. PMID: 31086467.
  2. Goyal RK, Guo Y, Mashimo H. Advances in the physiology of gastric emptying. Neurogastroenterol Motil. 2019 Apr; 31(4):e13546. PMID: 30740834.
  3. Mkarimi M, Mashimo H. Advanced Imaging for Barrett's Esophagus and Early Neoplasia: Surface and Subsurface Imaging for Diagnosis and Management. Curr Gastroenterol Rep. 2018 Oct 09; 20(12):54. PMID: 30302571.
  4. Ahsen OO, Liang K, Lee HC, Giacomelli MG, Wang Z, Potsaid B, Figueiredo M, Huang Q, Jayaraman V, Fujimoto JG, Mashimo H. Assessment of Barrett's esophagus and dysplasia with ultrahigh-speed volumetric en face and cross-sectional optical coherence tomography. Endoscopy. 2019 Apr; 51(4):355-359. PMID: 30261534.
  5. Inadomi J, Alastal H, Bonavina L, Gross S, Hunt RH, Mashimo H, di Pietro M, Rhee H, Shah M, Tolone S, Wang DH, Xie SH. Recent advances in Barrett's esophagus. Ann N Y Acad Sci. 2018 Dec; 1434(1):227-238. PMID: 29974975.
  6. Huang Q, Cheng Y, Chen L, Mingzhan D, Wang Y, Xu G, Shi J, Fan X, Zhou X, Zhang Y, Guo L, Liu T, Zhou D, Mashimo H, Gold JS, Zou X. Low risk of lymph node metastasis in 495 early gastric cardiac carcinomas: a multicenter clinicopathologic study of 2101 radical gastrectomies for early gastric carcinoma. Mod Pathol. 2018 10; 31(10):1599-1607. PMID: 29802360.
  7. Liang K, Wang Z, Ahsen OO, Lee HC, Potsaid BM, Jayaraman V, Cable A, Mashimo H, Li X, Fujimoto JG. Cycloid scanning for wide field optical coherence tomography endomicroscopy and angiography in vivo. Optica. 2018 Jan 20; 5(1):36-43. PMID: 29682598.
  8. Tsai TH, Leggett CL, Trindade AJ, Sethi A, Swager AF, Joshi V, Bergman JJ, Mashimo H, Nishioka NS, Namati E. Optical coherence tomography in gastroenterology: a review and future outlook. J Biomed Opt. 2017 Dec; 22(12):1-17. PMID: 29260538.
  9. Ahsen OO, Lee HC, Liang K, Wang Z, Figueiredo M, Huang Q, Potsaid B, Jayaraman V, Fujimoto JG, Mashimo H. Ultrahigh-speed endoscopic optical coherence tomography and angiography enables delineation of lateral margins of endoscopic mucosal resection: a case report. Therap Adv Gastroenterol. 2017 Dec; 10(12):931-936. PMID: 29204188.
  10. Liang K, Ahsen OO, Wang Z, Lee HC, Liang W, Potsaid BM, Tsai TH, Giacomelli MG, Jayaraman V, Mashimo H, Li X, Fujimoto JG. Endoscopic forward-viewing optical coherence tomography and angiography with MHz swept source. Opt Lett. 2017 Aug 15; 42(16):3193-3196. PMID: 28809905.
Showing 10 of 87 results. Show More

This graph shows the total number of publications by year, by first, middle/unknown, or last author.

Bar chart showing 87 publications over 26 distinct years, with a maximum of 11 publications in 2014


I serve on NIH T32 training grants in Gastroenterology at MGH, BIDMC, and BWH and have mentored numerous Gastroenterology and Research Fellows from Harvard and Boston Universities and M.I.T. who now hold academic positions and are thought-leaders. I helped structure and implement the Motility Training Program, an important ACGME component of Gastroenterology training programs. I directed a monthly multidisciplinary Boston Swallowing and Motility Disorders Group meeting and initiated and co-direct the annual Harvard CME course on gastrointestinal motility disorders, which enjoyed its sixteenth successful course. I serve on thesis committees, and I have authored chapters in the Joslin Diabetes textbook and in the Lange Current Diagnosis and Treatment of Gastroenterology, Hepatology and Endoscopy. I am a major contributor to the web-based resource for gastrointestinal motility disorders through Nature Publishing Company. I also served as a Tutor and Lecturer in the HMS Gastrointestinal Physiology course directed by Dr. Helen Shields (one of the highest ranked courses in the HMS curriculum), and participate in the transitional lecture series for the HST Students. I have mentored researchers in both clinical and basic sciences, and have published with them numerous papers in gastrointestinal motility, stem cells, and gene delivery systems. I advised on several company faculty councils for the making of educational slide sets on gastroesophageal reflux, Barrett disease, chronic constipation, and irritable bowel syndrome. Such educational work is being acknowledged through invited presentations, plenary session lectures, chairing of sessions at national and international meetings, and visiting professorships.

Available to Mentor as: (Review Mentor Role Definitions):
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  • Co-Mentor or Peer Mentor
  • Education Mentor
  • Project Mentor
  • Research / Scholarly Mentor
Contact for Mentoring:
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  • Phone (see 'Contact Info')

72 E. Concord St Building A
Boston MA 02118
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