"I've always wanted to ensure that anyone who comes into contact with me leaves feeling more positive," he said.
"Plus the human body is an amazing - it's a hugely diverse and interesting group of organs.
"Even small medical interventions can have a powerful outcome."
Mr Pike now volunteers as team events manager for St John, where he organises medical and ambulance personnel on stand-by at major events, such as the races at Tauherenikau, Toast Martinborough and La De Da.
He said he had "lots of funny stories" from working at festivals over the New Year period - particularly from having to notify the parents of overindulgent young party-goers.
"At these events, there's usually a lot of intoxicated young adults," said Mr Pike.
"I once treated a young girl from Napier, and I rang up her parents at 3am on New Year's Day.
"Her mother said, 'that can't be my daughter. She's staying with friends in Wellington'.
"That poor mum - it dawned on her eventually. But some parents are really adamant that it's not their kids out drinking."
Mr Pike said he feels "very humbled, and a little embarrassed" to receive a nomination.
In addition to his work at St John, Mr Pike is also a full-time employee of the NZ Fire Service, based at Masterton Fire Station.