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Johanna L. Chan, M.D.

  1. Gastroenterologist


  1. Jacksonville, Florida



Johanna L. Chan, M.D., is a Senior Associate Consultant in the Division of Gastroenterology and Hepatology at the Mayo Clinic in Jacksonville, Florida. Prior to joining the Mayo Clinic in 2021, she was Assistant Professor of Medicine at Baylor College of Medicine in Houston, Texas, where she served as Associate Clinical Medical Director for the faculty group practice at Baylor Medicine Gastroenterology and Baylor St. Luke's Medical Center. Dr. Chan cares for patients with a variety of general gastrointestinal conditions, with a particular clinical focus on colon cancer screening, women's health, nutrition, and dietary management of GI disorders and symptoms.

  1. 2015
    Fellowship - GastroenterologyBaylor College of Medicine
  2. 2012
    Residency - Internal MedicineDuke University Medical Center
  3. 2009
    MD - Medical DoctorUniversity of Texas, Southwestern Medical School
  4. 2005
    BA - Concentration: Molecular BiologyPrinceton University


  1. 2015
    GastroenterologyAmerican Board of Internal Medicine