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Office
4500 San Pablo Rd S
Jacksonville, FL 32224Phone+1 904-953-2000
Education & Training
- Mayo Clinic College of Medicine and Science (Rochester)Fellowship, Gastroenterology, 2005 - 2008
- Mayo Clinic College of Medicine and Science (Rochester)Residency, Internal Medicine, 1999 - 2003
- University of Alabama School of MedicineClass of 1999
Certifications & Licensure
- FL State Medical License 2008 - 2026
- GA State Medical License 2023 - 2025
- MN State Medical License 2000 - 2020
- MD State Medical License 2004 - 2005
- American Board of Internal Medicine Internal Medicine
- American Board of Internal Medicine Gastroenterology
- American Board of Medical Genetics and Genomics Clinical Genetics
Clinical Trials
- Study of a Screening Blood Test to Determine Patients' Potential Risk of Adenomatous or Advanced Colon Polyps (ACPs) Start of enrollment: 2010 Jan 01
Publications & Presentations
PubMed
- 157 citationsComparison of Universal Genetic Testing vs Guideline-Directed Targeted Testing for Patients With Hereditary Cancer Syndrome.N. Jewel Samadder, Douglas L. Riegert-Johnson, Lisa A. Boardman, Deborah J. Rhodes, Myra J. Wick
JAMA Oncology. 2021-02-01 - 44 citationsLynch Syndrome-Associated Extracolonic Tumors Are Rare in Two Extended Families With the Same EPCAM DeletionHenry T. Lynch, Douglas L. Riegert-Johnson, Carrie Snyder, Jane F. Lynch, Jill M. Hagenkord
The American Journal of Gastroenterology. 2011-07-19 - 28 citationsHereditary Cancer Syndromes—A Primer on Diagnosis and Management, Part 2: Gastrointestinal Cancer SyndromesN. Jewel Samadder, Noemi Baffy, Karthik V. Giridhar, Fergus J. Couch, Douglas L. Riegert-Johnson
Mayo Clinic Proceedings. 2019-06-01
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