Conveniently pay your hospital bill online. Patient Portal. Access your medical information on demand. ... 161 River Oaks Dr Canton, MS 39046 (601) 855-4000. 9Min. Visit Website ... (601) 825-2811. 10Min. Visit Website; Directions; Merit Health River Oaks; Merit Health River Oaks. 1030 River Oaks Dr Flowood, MS 39232 (601) 932-1030. 5Min. Visit ....