An Uber driver has allegedly been assaulted and had his car stolen by a “cowardly” group of teenagers in Lake Macquarie, in the New South Wales Hunter region, overnight.

Police said Gabriel Long, 35, was responding to a job on Dudley Road, Charlestown, about 12.30am, and stopped near a group of 15-20 people.

About four teenagers then dragged the driver from his seat and assaulted Mr Long, while another youth climbed onto the roof of his white Hyundai Elantra, police said.

“I got punched all over my body. I was on the ground, my hair was pulling,” Mr Long told 9NEWS.

He managed to escape to a nearby house, but was chased by two people with a baseball and cricket bat who then smashed a car parked in the driveway.

Uber driver Gabriel Long, 35, was allegedly attacked by a group of teenagers last night. (9NEWS)

“I was so weak they would have killed me easily,” he added.

His car was later found crashed into a roundabout nearby on Algona and Dudley roads, with a wallet and two phones stolen from it.

Mr Long suffered cuts to his arms and legs, muscle pain and soreness, but declined medical attention at the scene.

The husband and father works as an aged-care nurse by day, and supplements his income by driving for the ride-sharing service at night.

“Why did they do that to me? I’m not a fighter. I’m just a lover, I care about everybody.”

Sergeant David Mitchell from NSW Police called the alleged crime “cowardly”.

One of the offenders climbed on top of the car while Mr Long was dragged from the driver's seat, police said. (9NEWS

“Any attack on one person by a group of people is certainly a cowardly attack,” Sgt. Mitchell said.

Police have released a description of two teenagers they believe can assist with the investigation into the alleged assault and robbery.

The first offender is described as having an Aboriginal/Torres Strait Islander appearance, aged 17-18, with a slim build, and 175cm–180cm tall. At the time he was wearing a black long-sleeve hooded jumper, police said.

The second youth is described as being of Caucasian appearance, also aged 17-18, with a solid build, 175cm–180cm tall.