The 22-year-old is be hoping to keep his place in the side after excelling when he was thrown into the deep end against Liverpool last time, filling in at centre-back following the sending-off of Mapou Yanga-Mbiwa.
Dummett scored his first goal for the club in the 2-2 draw and has given Pardew plenty to think about ahead of the derby clash at the Stadium of Light.
The Newcastle boss told The Chronicle: "I don't expect to see him scoring goals - stopping goals is what he will be paid for.
"I thought he did that really well. He made some important interceptions and headers.
"You actually didn't see the join in the back four when Yanga-Mbiwa went off.
"We conceded a lot of possession because we only had 10 but we did really, really well."
Pardew revealed he was going to start Dummett against Liverpool with Mike Williamson struggling in the build-up and - with Fabricio Coloccini out and Mapou Yanga-Mbiwa now suspended - he is pleased he has got options at the back.
He added: "We've worked with the players that have come in. And we look like we've got a lot of good options.
"I was going to start with Dummett for Liverpool because Willo was struggling before the game.
"It was ironic that he came on. He'd had preparation, but I didn't expect him to do his little hop, skip and jump after he scored.
"His family will be proud of him. We've had him since he was nine so it is great to get one through."