Josi has a point in 52 of 78 games this season and is averaging more goals (0.27) and points (1.19) per game than he did in 2019-20 (0.23 goals per game, 0.94 points per game) when he won the Norris Trophy for the first time.
"I love this team," Josi said. "I'm getting a lot of free points because guys are playing so well and guys are scoring and our power play is doing so well. It's just so much fun being a part of this team.
"I think it's a complete team effort this year. Obviously some guys are having great years, which is awesome, but it's not just the stats. It's everyone doing their job, which makes it so much fun to play on this team."
Josi had a 13-game point streak from March 2-27 (four goals, 24 assists), the longest ever by a Predators defenseman and tied with Makar for the longest by an NHL defenseman this season.
He scored a goal in a 6-2 loss to the Lightning on Saturday to reach 90 points, but said individual accolades aren't something he's concerned about right now.
"It's definitely not on my mind tonight," Josi said. "We're in a playoff hunt and it was a disappointing night for us. Sometime I'll look back at this and be happy, but tonight was a disappointment with the way it ended and the way we played."
Hedman, who has been a Norris finalist each of the past five seasons and won it in 2017-18, said Josi would be his pick.
"You look at the top two, obviously Josi and Makar," Hedman said last week. "A little bit of different players but really highly skilled offensively. I don't know. It will be a tough vote this year but I will probably go with Josi."
Voting totals (points awarded on a 5-4-3-2-1 basis): Roman Josi, Nashville Predators, 80 points (12 first-place votes); Cale Makar, Colorado Avalanche, 71 (5); Victor Hedman, Tampa Bay Lightning, 51; Adam Fox, New York Rangers, 19; Charlie McAvoy, Boston Bruins, 9; Morgan Rielly, Toronto Maple Leafs, 7; John Carlson, Washington Capitals, 6; Aaron Ekblad, Florida Panthers, 4; Kris Letang, Pittsburgh Penguins, 4; Devon Toews, Colorado Avalanche 2; Quinn Hughes, Vancouver Canucks, 1; Jaccob Slavin, Carolina Hurricanes, 1