Douglas Riegert Johnson

Mayo Clinic
Mayo Clinic

Douglas Riegert-Johnson is a consultant of gastroenterology and medical genomics at Mayo Clinic Florida. Since starting there in 2008, he has been caring for patients with hereditary cancer syndromes with a talented and caring team of genomic counselors, nurses and physicians. The group has now cared for more than 400 patients with familial adenomatous polyposis, Lynch syndrome, Peutz-Jeghers syndrome and other hereditary cancer syndromes.

His family is originally from the Birmingham area of Alabama. He graduated in chemistry from Samford University and in medicine from the University of Alabama School of Medicine. After medical school, Dr. Riegert-Johnson trained at the Mayo Clinic in Rochester, Minnesota. There he was a medicine resident and chief medical resident and then gastroenterology fellow. In the middle of his training at Mayo, he went to Baltimore for two years to train in medical genetics at Johns Hopkins Hospital. He was one of the last fellows during Dr. McKusick's tenure.


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