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Photo of Dr. Marcia Canto

Marcia Irene Canto, M.D.

Director of Clinical Research, Division of Gastroenterology
Professor of Medicine

Female  | Languages: English, Filipino, Tagalog

Appointment Phone


Main Location

Johns Hopkins Gastroenterology and Hepatology - Howard County

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »


  • Director of Clinical Research, Division of Gastroenterology
  • Professor of Medicine
  • Professor of Oncology

Centers & Institutes



Johns Hopkins Gastroenterology and Hepatology - Howard County

Appointment Phone: 410-933-7495

10700 Charter Drive
Charter Medical Building Suite 310
Columbia, MD 21044 map

The Johns Hopkins Hospital - Main Entrance

Appointment Phone: 410-933-7495

1800 Orleans Street
Baltimore, MD 21287 map


Barrett's Esophagus, Clinical Gastroenterology, Colon Polyps, Digestive Diseases, Endoscopic Ultrasound, Endoscopy, Esophageal Cancer, Esophageal Disease, Family History of Cancer, Gastric ulcer, Gastroenterology, Gastroesophageal Reflux Disease (GERD), Gastrointestinal Cancers, Gastrointestinal Diseases, Heartburn, Pancreatic and Biliary Disease, Pancreatic Cancer, Pancreatic Cysts, Reflux and Burning, Stomach Pain, Stomach Ulcer, Swallowing Disorders

Research Interests

Familial pancreatic cancer; Barrett's esophagus; Endomicroscopy; Endoscopic mucosal ablation and resection


Marcia (Mimi) Canto, M.D., M.H.S. is an Associate Professor of Medicine and Oncology at The Johns Hopkins University School of Medicine. She is also the Director of Endoscopy at the Johns Hopkins Hospital. Dr. Canto received her Bachelor of Science degree from the University of the Philippines in Manila in 1981 (summa cum laude). She received her Doctor of Medicine degree in 1985 from the University of the Philippines and completed her training in Internal Medicine from State University of New York Sciences Center in Brooklyn, Brooklyn, New York.

Dr. Canto completed a postdoctoral fellowship in Gastroenterology-Hepatology at The Johns Hopkins University School of Medicine and received a Master of Health Science in Clinical Epidemiology from The Johns Hopkins University School of Hygiene and Public Health in 1993. Dr. Canto came back to Johns Hopkins after spending three years at Case Western Reserve University in Cleveland, Ohio for advanced endoscopic training.

Her primary clinical interests include endoscopy, particularly the use of endoscopic ultrasound (EUS) in detecting early pancreatic cancer and its precursors. She has recently shown that endoscopic ultrasound can be used to detect asymptomatic precancerous lesions in patients with a family history of pancreatic cancer. more

  • Additional Information

  • Education +


    • University of the Philippines Manila / MD (1985)


    • SUNY at Brooklyn College of Medicine / Internal Medicine (1990)


    • Johns Hopkins University School of Medicine / Gastroenterology (1993)
    • University Hospitals of Cleveland / Gastroenterology (1995)
    • University of California (Irvine) School of Medicine / Gastroenterology (1995)


    • American Board of Internal Medicine / Gastroenterology (1995, 2008)
    • American Board of Internal Medicine / Internal Medicine (1989)
  • Research & Publications +

    Clinical Trial Keywords: Endoscopic radiofrequency ablation, Endoscopic cryotherapy, Cancer of the Pancreas Screening, Confocal endomicroscopy Barrett's esophagus

    Selected Publications

    Wang, J.S.; Guo, M.; Montgomery, E.A.; Thompson, R.E.; Cosby, H.; Hicks, L.; Wang, S.; Herman, J.G.; Canto, M.I. DNA promoter hypermethylation of p16 and APC predicts neoplastic progression in Barrett''s esophagus. Am J Gastroenterol. 2009 Sep;104(9):2153-2160.

    Brune, K.A.; Lau, B.; Palmisano, E.; Canto, M.; Goggins, M.G.; Hruban, R.H.; Klein, A.P. Importance of age of onset in pancreatic cancer kindreds. J Natl Cancer Inst. 2010 Jan 20;102(2):119-126.

    Harinck, F.; Canto, M.I.; Schulick, R.; Goggins, M.; Poley, J.W.; Fockens, P.; Kluijt, I.; Bruno, M. Surveillance in individuals at high risk of pancreatic cancer: too early to tell? Gut. 2010 Jul;59(7):1005; author reply 1006-1007.

    Hector, A.; Montgomery, E.A.; Karikari, C.; Canto, M.; Dunbar, K.B.; Wang, J.S.; Feldmann, G.; Hong, S.M.; Haffner, M.C.; Meeker, A.K.; Holland, S.J.; Yu, J.; Heckrodt, T.J.; Zhang, J.; Ding, P.; Goff, D.; Singh, R.; Roa, J.C.; Marimuthu, A.; Riggins, G.J.; Eshleman, J.R.; Nelkin, B.D.; Pandey, A.; Maitra, A. The Axl receptor tyrosine kinase is an adverse prognostic factor and a therapeutic target in esophageal adenocarcinoma. Cancer Biol Ther. 2010 Nov 29;10(10):1009-1018.

    Hruban, R.H.; Canto, M.I.; Goggins, M.; Schulick, R.; Klein, A.P. Update on familial pancreatic cancer. Adv Surg. 2010;44:293-311.

    Lennon, A.M.; Newman, N.; Makary, M.A.; Edil, B.H.; Shin, E.J.; Khashab, M.A.; Hruban, R.H.; Wolfgang, C.L.; Schulick, R.D.; Giday, S.; Canto, M.I. EUS-guided tattooing before laparoscopic distal pancreatic resection (with video). Gastrointest Endosc. 2010 Nov;72(5):1089-1094.

    Newman, N.A.; Lennon, A.M.; Edil, B.H.; Gilson, M.M.; Giday, S.A.; Canto, M.I.; Schulick, R.D.; Makary, M.A. Preoperative endoscopic tattooing of pancreatic body and tail lesions decreases operative time for laparoscopic distal pancreatectomy. Surgery. 2010 Aug;148(2):371-377.
  • Academic Affiliations & Courses +
  • Activities & Honors +
  • Videos & Media +

    Recent News Articles & Media Coverage

    Endoscopic Cryotherapy: A Cool Alternative, Inside Tract (Spring 2015)

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