Selected by the Ottawa Senators in the seventh round (No. 204) of the 2011 NHL Draft, Dzingel played three seasons at Ohio State University. As a junior in 2013-14, he led the Big Ten Conference in goals (22) and points (46) and was a finalist for the Hobey Baker Award, given to the top player in NCAA Division I.

In 2016-17, his first full NHL season, Dzingel scored 32 points (14 goals, 18 assists) in 81 games, then contributed three points (two goals, one assist) in 15 Stanley Cup Playoff games. His goal with 5:19 remaining in the third period of Game 7 in the Eastern Conference Final against the Pittsburgh Penguins forced overtime, but the Penguins won 3-2 to advance to the Stanley Cup Final.

The Senators signed Dzingel to a two-year contract on July 21, 2017, but he was traded to the Columbus Blue Jackets on Feb. 23, 2019. Between the Senators and Blue Jackets in 2018-19, Dzingel scored an NHL career-high 56 points (26 goals, 30 assists).

He signed a two-year contract with the Hurricanes on July 12, 2019.

Dzingel signed a one-year contract with the Arizona Coyotes on July 28, 2021. He was traded to the Toronto Maple Leafs on Feb. 19, 2022 and claimed off waivers by the San Jose Sharks two days later.

NOTES & TRANSACTIONS

• Big Ten First All-Star Team (2014)
• NCAA West First All-American Team (2014)
• Traded to Columbus by Ottawa with Calgary's 7th-round pick in 2019 NHL Draft (previously acquired) for Anthony Duclair, Columbus' 2nd-round pick in 2020 NHL Draft and 2nd-round pick in 2021 NHL Draft, February 23, 2019.
• Signed as a free agent by Carolina, July 12, 2019.
• Traded to Ottawa by Carolina for Cedric Paquette and Alex Galchenyuk, February 13, 2021.
• Signed as a free agent by Arizona, July 28, 2021.
• Traded to Toronto by Arizona with Ilya Lyubushkin for Nick Ritchie and a conditional NHL Draft pick, February 19, 2022.
• Claimed off waivers by San Jose from Toronto, February 21, 2022.