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 By last name Find a doctor 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 active 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 There are no doctors 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 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 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 There are no doctors 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 1-2 out of 2 doctors available Last Name Initial: G Omar M. Ghanem, M.D. Metabolic Surgeon Rochester, MN Areas of focus: Bariatric surgery, Laparoscopic surgery, Sleeve gastrectomy, Minimally invasive surgery, Gastric bypass surgery, Biliop...ancreatic diversion with duodenal switch, Diabetes, Obesity, Metabolic syndrome, Gastroparesis, Median arcuate ligament syndrome, Weight regain after bariatric surgery, Diaphragmatic hernia Show more areas of focus for Omar M. Ghanem, M.D. Karen Grothe, Ph.D., L.P. Psychologist Rochester, MN Areas of focus: Bariatric surgery, Cardiovascular disease prevention, Diabetes, Obesity, Binge-eating disorder Request an appointment Conditions treatedPatient stories Feb. 13, 2026 Share on: FacebookTwitter Bariatric Surgery Program in RochesterSectionsOverviewTests & proceduresConditions treatedDoctorsPatient storiesResearchClinical trialsNews from Mayo ClinicReferrals SectionsRequest an AppointmentOverviewTests & proceduresConditions treatedDoctorsPatient storiesResearchClinical trialsNews from Mayo ClinicReferrals ORG-20583972 Medical Departments & Centers Bariatric Surgery Program in Rochester