Doctors 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. Find doctors and medical staff: Edit search filters close Narrow your search Doctor's Name, Condition Or Procedure By location Rochester, MN Jacksonville, FL Phoenix/Scottsdale, AZ By last name Find a doctor whose last name begins with the letter A A There are no doctors whose last name begins with the letter B B There are no doctors whose last name begins with the letter C C Find a doctor 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 Find a doctor 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 Find a doctor 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 Find a doctor whose last name begins with the letter M M There are no doctors whose last name begins with the letter N N Find a doctor whose last name begins with the letter O O Find a doctor whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q Find a doctor whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S Find a doctor 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 By conditions treated No results found By procedures performed No results found By spoken language No results found 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 11-15 out of 15 doctors available Douglas L. Riegert-Johnson, M.D. Internist Gastroenterologist Medical Geneticist Jacksonville, FL Areas of focus: Upper endoscopy, Colonoscopy, Fecal transplant, Chromoendoscopy, Pancreatic cancer, Familial adenomatous polyposis, Lyn...ch syndrome Show more areas of focus for Douglas L. Riegert-Johnson, M.D. 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. Lisa A. Schimmenti, M.D. Pediatrician Medical Geneticist Rochester, MN Areas of focus: Newborn screening, Genetic testing, Hearing loss in children, Hearing loss, Genetic disorder, Eye problem, Bardet-Biedl... syndrome, Retinitis pigmentosa Show more areas of focus for Lisa A. Schimmenti, M.D. Queenie Tan, M.D., Ph.D. Medical Geneticist Rochester, MN Areas of focus: Genetic disorder, Bardet-Biedl syndrome, Metabolic disorders, Metabolic liver disease, Rare disorders Myra J. Wick, M.D., Ph.D. Gynecologist Medical Geneticist Rochester, MN Areas of focus: Obesity, Stillbirth Pagination Doctor search PrevPrevious Page Go to page 11 Go to page 22 Request an appointment OverviewSpecialty groups May 31, 2025 Share on: FacebookTwitter Clinical GenomicsSectionsOverviewDoctorsSpecialty groupsClinical trialsResearchCosts & insuranceNews from Mayo ClinicReferrals SectionsRequest an AppointmentOverviewDoctorsSpecialty groupsClinical trialsResearchCosts & insuranceNews from Mayo ClinicReferrals ORG-20567159 Medical Departments & Centers Clinical Genomics