The Islanders, who came into the game with the second-fewest number of victories in the Eastern Conference, have won back-to-back contests.
New York built a 3-0 lead before Matt Read spoiled Nabokov's shutout bid with 9:12 left in the game.
After a scoreless first period, Matt Moulson put the Islanders in front 28 seconds into the middle stanza. Josh Bailey added a shorthanded goal in the second, Mark Streit scored on the power play 7:07 into the third and Michael Grabner tacked on an empty-net goal in the final second.
Sergei Bobrovsky allowed the three New York goals on 26 shots.
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