Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments that treat this condition Colon and Rectal Surgery Early-Onset and Hereditary GI Cancers Program Early-Onset Colorectal Cancer Group Gastroenterology and Hepatology Gastrointestinal Neoplasia Clinic Pediatric Surgery Surgery Doctors who treat this condition Edit search filters close Narrow your search By location Phoenix/Scottsdale, AZ By last name There are no doctors whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B There are no doctors whose last name begins with the letter C C There are no doctors whose last name begins with the letter D D There are no doctors whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F There are no doctors whose last name begins with the letter G G There are no doctors whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I There are no doctors whose last name begins with the letter J J There are no doctors whose last name begins with the letter K K Find a doctor whose last name begins with the letter L L There are no doctors whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O There are no doctors whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q There are no doctors whose last name begins with the letter R R active Find a doctor whose last name begins with the letter S S There are no doctors whose last name begins with the letter T T There are no doctors whose last name begins with the letter U U There are no doctors whose last name begins with the letter V V Find a doctor whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X There are no doctors whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-1 out of 1 doctors available Last Name Initial: S Jewel J. Samadder, M.D. Gastroenterologist Phoenix, AZ Areas of focus: Colonoscopy, Endoscopic procedure, Endoscopic mucosal resection, Familial adenomatous polyposis, Barrett's esophagus, B...RCA gene mutation, MUTYH-associated polyposis, Lynch syndrome, Juvenile polyposis syndrome, Peutz-Jeghers syndrome, Cowden syndrome Show more areas of focus for Jewel J. Samadder, M.D. ResearchMayo Clinic researchers are continually developing improved screening methods and treatments for hereditary polyp disorders, such as Peutz-Jeghers syndrome, and gastrointestinal cancers. Mayo maintains the Colon Cancer Family Registry to help keep you informed of new screening techniques and procedures. Mayo scientists are working to discover more about the genetic basis of PJS and other hereditary polyp disorders and to clinically translate those genetic findings to medical care. Surgeons also are working to improve treatments, such as laparoscopic techniques for colorectal procedures. Mayo Clinic's Cancer Risk Assessment, Early Detection and Interception Research Program is focused on developing targeted early detection and data-driven prevention strategies for clinically significant cancer precursors and early-stage cancers. PublicationsSee a list of publications about Peutz-Jeghers syndrome by Mayo Clinic doctors on PubMed, a service of the National Library of Medicine. Research Profiles Edit search filters close Narrow your search By location Arizona Florida Minnesota View all View all physicians • All Locations Boardman, Lisa A. M.D. Minnesota Riegert-Johnson, Douglas L. M.D. Florida By Mayo Clinic Staff Peutz-Jeghers syndrome care at Mayo Clinic Request an appointment Diagnosis & treatmentCare at Mayo Clinic Feb. 21, 2026 Print Peutz-Jeghers syndromeSymptoms&causesDiagnosis&treatmentDoctors&departmentsCare atMayoClinic Research: It's all about patients Show transcript for video Research: It's all about patients [MUSIC PLAYING] Joseph Sirven, M.D., Professor of Neurology, Mayo Clinic: Mayo's mission is about the patient. The patient comes first. So the mission and research here is to advance how we can best help the patient, how to make sure the patient comes first in care. So in many ways, it's a cycle. It can start with as simple as an idea worked on in a laboratory, brought to the patient bedside, and if everything goes right — and let's say it's helpful or beneficial — then brought on as a standard approach. And I think that is one of the unique characteristics of Mayo's approach to research — that patient-centeredness — that really helps to put it in its own spotlight. CON-20358128 Diseases & Conditions Peutz-Jeghers syndrome