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 Gastroenterology and Hepatology Doctors who treat this condition edit search filters Close Narrow your search By Locations Jacksonville, FL By last name A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Reset all filters Displaying 1-1 out of 1 doctors available David S. Loeb, M.D. Gastroenterologist Internist Jacksonville, FL Areas of focus: Capsule endoscopy, Upper endoscopy, H. pylori infection, Peptic ulcer more see full list in profile By Mayo Clinic Staff Request an Appointment at Mayo Clinic Diagnosis & treatment May 17, 2017 Print Share on: FacebookTwitter RelatedH. PyloriUnexplained weight lossNausea and vomitingAbdominal painVomiting blood Helicobacter pylori (H. pylori) infectionSymptoms & causesDiagnosis & treatmentDoctors & departments Research: It's All About Patients CON-20301708 Patient Care & Health Information Diseases & Conditions Helicobacter pylori (H. pylori) infection