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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.

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Displaying 1-9 out of 9 doctors available

Last Name Initial: R

Laura E. Raffals, M.D.
1. Gastroenterologist
1. Rochester, MN
Areas of focus:

Ulcerative colitis, Inflammatory bowel disease, Crohn's disease, Pouchitis
Massimo Raimondo, M.D.
1. Gastroenterologist
1. Jacksonville, FL
Areas of focus:

Colonoscopy, Endoscopic ultrasound, Upper endoscopy, Endoscopic mucosal resection, Endoscopic full-thickness biopsy, Fi...ne needle aspiration, Endoscopic biopsy, Colon polyps, Pancreatic cancer, Pancreatic neuroendocrine tumor, Pancreatitis, Pancreatic cyst, Pancreatic insufficiency
Elizabeth Rajan, M.D.
1. Gastroenterologist
1. Rochester, MN
Areas of focus:

Endoscopic ultrasound, Upper endoscopy, Capsule endoscopy, Balloon assisted endoscopy
Francisco C. Ramirez, M.D.
1. Internist
2. Gastroenterologist
1. Phoenix, AZ
Areas of focus:

Upper endoscopy, Colon cancer
Karthik Ravi, M.D.
1. Internist
2. Gastroenterologist
1. Rochester, MN
Areas of focus:

Achalasia, Gastroesophageal reflux disease, Eosinophilic esophagitis, Esophageal spasms
Douglas L. Riegert-Johnson, M.D.
1. Internist
2. Gastroenterologist
3. Medical Geneticist
1. Jacksonville, FL
Areas of focus:

Colonoscopy, Fecal transplant, Upper endoscopy, Chromoendoscopy, Lynch syndrome, Familial adenomatous polyposis, Pancre...atic cancer
Lewis R. Roberts, M.B., Ch.B., Ph.D.
1. Gastroenterologist
1. Rochester, MN
Areas of focus:

Hepatocellular carcinoma
Barry G. Rosser, Jr., M.D.
1. Internist
2. Transplant Hepatologist
1. Jacksonville, FL
Areas of focus:

Liver transplant, Post-transplant long-term care, Pre-transplant evaluation, Nonalcoholic fatty liver disease, Cirrhosi...s, Liver problems, Primary sclerosing cholangitis, Cholangiocarcinoma, Liver cancer, Alcoholic hepatitis, Autoimmune hepatitis, Hepatocellular carcinoma, Hepatopulmonary syndrome, Primary biliary cholangitis
Kevin C. Ruff, M.D.
1. Gastroenterologist
1. Phoenix, AZ
Areas of focus:

Balloon assisted endoscopy, Nutrition (Healthy eating)