The National Hockey League on Monday suspended him two games without pay for boarding Flyers forward Brayden Schenn in Sunday's 5-4 overtime loss in Washington.
The 22-year-old scored twice in the game and has three goals and nine points in 36 games this season.
Orlov, who was assessed a minor penalty at 9:33 of the third period, will forfeit $7,076.92 that will go to the players' emergency assistance fund.
The Capitals visit Philadelphia on Wednesday and Boston the following night.
Washington recalled blue-liner Jack Hillen from the Hershey Bears of the American Hockey League, general manager George McPhee announced through a team news release.
Hillen, 28, played two games with the Capitals earlier this season before sustaining a right tibial plateau fracture on Oct. 3 against Calgary.
The Minnesota native missed 57 contests before appearing in two games for Hershey and recording two assists on Sunday versus Charlotte.
Hillen, originally signed by the New York Islanders as an undrafted free agent in 2008, has 65 points on 13 goals and 52 assists in 255 NHL regular-season games with the Islanders, Nashville and Washington.