Originally drafted out of high school by the New York Islanders in the seventh-round, 185th overall, of the 2012 NHL Entry Draft, Bischoff was signed to a two-year, entry-level contract with the club following his senior season with the Golden Gophers on March 29, 2017. He immediately joined the Islanders' AHL affiliate, the Bridgeport Sound Tigers for the remainder of the regular season, posting 3 points in 6 games.