Severance Hospital in Seoul is JCI accredited and handles 40,000+ surgeries yearly, showing solid clinical experience. It offers advanced diagnostics such as MRI, CT, PET, and PET/CT to support gastritis evaluation. MRI scans may cost around A$1,300 to A$1,400. The hospital specialises in robotic surgery for digestive tract cancers, though specific gastritis treatments aren't listed. Collaborations with Anderson Cancer Center and Johns Hopkins boost treatment quality and expertise, making it a trusted choice for Australians seeking care abroad.