The 'Grommet Blitz' was set up to accelerate the process of identifying children with glue ear and providing an early surgical intervention service throughout Northland. He took an active interest in indigenous ENT health and ran fortnightly clinics in the Far North where accessing health is an issue.
He also co-authored a glue ear book used by general practitioners throughout the country as a reference work.
With another Whangarei surgeon Dr Gathercole was one of the first doctors in New Zealand to receive an Australasian award for their service to the community.
He and Mr Milsom received the Outstanding Service to the Community Award at the inaugural Northland Health Sector Awards in August 2014.
When asked what he will miss the most Dr Gathercole said the patients - "the grateful, grateful patients; and the team, staff and colleagues."
As well as his passion for the job, Dr Gathercole fell in love with the outdoors in New Zealand and has spent many hours fishing and hunting and the couple plan a lifestyle switch to Wanaka. "I've really enjoyed the lifestyle of Northland but we've decided to retire to Wanaka for a change. It's a whole different world there and we're looking forward to biking and skiing. We may come back or we may not," he said.