Corbin (5-0) has made seven starts this season and has given up no more than two earned runs in any of them.
He allowed a run on four hits in 6 1/3 innings Thursday, walking two and striking out four. Corbin also drove in the first Arizona run in the fifth inning on a ground out.
A squeeze bunt by Martin Prado in the sixth produced the other run for the Diamondbacks, who then held on behind Corbin and three relievers to win their fourth in a row.
Cole Hamels (1-5) was the hard-luck loser, surrendering the two Arizona runs on six hits in six innings.