Maxwell was booked by Scottsdale, Arizona police at his home late Saturday afternoon.
Authorities say that the victim is a food delivery person who stated that Maxwell pointed a weapon at her.
Maxwell, 26, is being charged with aggravated assault with a deadly weapon and disorderly conduct.
"We are disappointed to learn of the allegations. We take this situation and ongoing investigation seriously," the team said in a statement. "We are gathering information from the proper authorities and do not have further comment at this time."
Last week, Maxwell, who made news as the only major league baseball player to take a knee during the playing of the national anthem, said he was denied service at an Alabama restaurant by a waiter who did not agree with the protest.
Maxwell, in his second MLB season, hit .237 with three home runs and 22 RBI in 76 games.