Ian Levy is the first Conservative MP for Blyth Valley since 1935.
The lifelong Blyth resident won the seat at the second time of asking having previously tried, and failed, to win in the 2017 election.
He narrowly pipped Labour's Susan Dungworth to the seat with 17,440 votes to 16,728.
Then he gained some 15,855 votes finishing second to veteran Labour MP Ronnie Campbell who represented the area since 1987.
According to Northumberland Conservatives Mr Levy can trace his ancestry in the town back some 500 years, and is an NHS worker working in mental health.
He campaigned for returning passenger rail services to the Blyth Valley, a scheme recently endorsed by Prime Minister Boris Johnson, along with a new relief road for Blyth.
Mr Campbell announced in June he would "step aside" at the next election.
Although the 76-year-old signalled he was ready to call it a day after the 2015 election, he decided to fight the 2017 campaign given the circumstances of the snap poll.
He backed Jeremy Corbyn in the leadership contest and has long been associated with the left of the party.