The Senators traded Carey to the Bruins on Friday in exchange for Cody Golubef.
The Senators reassigned Carey to AHL Belleville on Wednesday.
Carey was recalled from AHL Belleville on Monday.
Carey was recalled by the Senators on Tuesday, Steve Lloyd of TSN 1200 Ottawa reports.
Carey signed a one-year, two-way contract with the Senators on Sunday. He will make $700,000 at the NHL level with that figure decreasing to $350,000 in the AHL.
Carey skated for 60 games in 2017-18, notching seven goals and seven assists while averaging 10:16 of ice time.
Carey finished with a minus-1 rating over 9:17 of ice time in Thursday's 4-3 loss to the Flyers.
Carey scored his fifth goal of the season in Monday's 3-2 overtime win against the Sabres.
Carey registered two goals and three shots through 13:32 of ice time during Tuesday's 4-1 win over Anaheim.
Carey logged one hit and blocked one shot in Saturday's 3-2 overtime victory over Boston.