DepartmentsClinical GenomicsGastroenterology and HepatologyLocationJacksonville, FloridaLanguagesEnglishExisting patientsSend a secure message via patient portal Share this page via: Facebook Twitter Print Conditions treatedCancer InterestsFamilial cancer syndromes Mayo Clinic locations Jacksonville, Florida Driving Directions More info Billing & insurance Accessibility services Education2008Fellow - Gastroenterology and Instructor of MedicineSatter Family Cancer Research2008Fellow - GastroenterologyMayo Graduate School of Medicine, Mayo Clinic College of Medicine2005Resident - Genetic Medicine and Fellow of PediatricsThe Johns Hopkins Hospital2003Resident - Instructor of MedicineMayo Graduate School of Medicine, Mayo Clinic College of Medicine2001Resident - Internal MedicineMayo Graduate School of Medicine, Mayo Clinic College of Medicine1999MDUniversity of Alabama School of Medicine1995BS - ChemistrySamford UniversityShow more education Activities and honorsCertifications2008GastroenterologyAmerican Board of Internal Medicine2005Clinical GeneticsAmerican Board of Medical Genetics and Genomics2002Internal MedicineAmerican Board of Internal MedicineShow more certificationsAwards and honors2010Internal Medicine Resident Teacher of the YearMayo Clinic in Florida2010C. Douglas Fleming GI Teacher of the YearDivision of Gastroenterology & Hepatology, Department of Internal Medicine2008GI FellowshipSatter Family Cancer Research Fellowship2005MG ResidencyMargaret Ellen Nielsen Genetic Medicine Fellowship1999Sparks Award for Excellence in Clinical Medicine ClerkshipUniversity of Alabama School of Medicine1995Magna cum laude - awarded membership in National Institute of ChemistSamford UniversityShow more awards and honorsProfessional memberships2012 - 2017MemberEndoscopy Committee, Division of Gastroenterology & Hepatology, Department of Internal Medicine2008 - presentMemberAmerican College of Medical Genetics and Genomics2008 - presentSubcommittee MemberMayo Clinic Biobank Access Committee2008 - presentMemberInternational Society for Gastrointestinal Hereditary Tumours2008 - presentMemberCollaborative Group of the Americas on Inherited Colorectal Cancer1997 - presentMemberAmerican Medical Association Medical Genetics Research Committee, Department of Medical GeneticsShow more professional membershipsPublicationsSee my publications Conditions treatedInterestsMayo Clinic locationsEducationActivities and honors Request an appointment PST-20225093 Doctors & Medical Staff Riegert-Johnson, Douglas L. M.D.