The D-backs outfielder is off to a torrid start at the plate, collecting 11 hits in his first 24 at-bats heading into Sunday's game with the Brewers.
"He's barreling balls, for sure," Arizona manager Kirk Gibson said.
Gibson cited Parra's improvement at hitting breaking pitches as well as the presence of Martin Prado as reasons for Parra's hot start.
"He hit a breaking ball the other night, two strikes, down the left-field line," Gibson said. "So he's made some adjustments, he's learned how to stay back better. He's a strong kid. He's off to a good start. It certainly helps him to be playing every day right now, too. Prado's been a great influence on him. He's happy."
Steve Gilbert is a reporter for MLB.com. Follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.