Zach Grienke (15-3) won his seventh game in his last 10 starts, allowing two runs on six hits and striking out five in six innings.
Aaron Hill had a solo home run for the Diamondbacks, who had three-game winning streak until the powerhouse Dodgers hit town. Patrick Corbin (14-7) took the loss on six runs over seven hits in only two-plus innings.
Los Angeles scored four runs in the first inning on Kemp's two-run double and Uribe's 12th home run of the season. The Dodgers extended their lead to 8-0 before Arizona got on the board in the bottom of the fourth on a ground-ball RBI by Martin Prado.