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 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 Find a doctor whose last name begins with the letter C C Find a doctor whose last name begins with the letter D D Find a doctor 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 Find a doctor whose last name begins with the letter H H Find a doctor whose last name begins with the letter I I Find a doctor whose last name begins with the letter J J Find a doctor 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 Find a doctor 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 Find a doctor whose last name begins with the letter Q Q active 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 Find a doctor 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 Find a doctor whose last name begins with the letter Y Y Find a doctor whose last name begins with the letter Z Z 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 11-11 out of 11 doctors available Last Name Initial: R Alexander J. Ryu, M.D. Internist Hospitalist Rochester, MN Pagination Doctor search PrevPrevious Page Go to page 11 Go to page 22 OverviewExpertise & rankings April 16, 2024 Share on: FacebookTwitter Hospital Internal MedicineSectionsOverviewDoctorsExpertise & rankingsClinical trialsResearchCosts & insuranceNews from Mayo ClinicReferrals SectionsOverviewDoctorsExpertise & rankingsClinical trialsResearchCosts & insuranceNews from Mayo ClinicReferrals ORG-20480829 Medical Departments & Centers Hospital Internal Medicine Your gift holds great power – donate today! DonateMake your tax-deductible gift and be a part of the cutting-edge research and care that's changing medicine. Donate