But working alongside one of the highest Māori populations in the country, he also immerses himself in the rich cultural landscape of New Zealand.
A beautiful land with precious heritage, Dr MacDonald learns words and phrases in the Māori language, helps cook a traditional hot-spring hangi meal, takes on the role of linesman at a Māori Rugby League tournament and even learns a terrifying type of haka.
He dives into heartfelt conversations with colleagues and friends to explore the link between language and identity, uncovering stories of those who have suffered racism because of their Māori heritage, shunning their language as result.
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Dr MacDonald also delves into inequity within the healthcare system for indigenous and minority populations and sees first-hand how Māori culture is reflected within the hospital.
He said: “It’s a personal thing because language is closely connected to our sense of identity and how we see ourselves.”
“It was heartbreaking to hear how some have suffered because of their language and identity but great to hear that people in the Māori culture want to pass on the language to the next generation. It highlights how closely language is related to who we are, and this gives me hope for the future of our own Gaelic language.”
While living in New Zealand, Dr MacDonald also meets fellow Gaels who have made the country their home, and explores the precious ecosystem of exotic forests and geothermal hot water pools.
He added: “New Zealand is such a fascinating country. For the locals, enjoying life is as important as making a living. With that in mind, I’ve jumped at every opportunity – including out of a plane with a parachute! I’ve been working hard in the hospital but I’ve also been trying to do as much as possible outside of work too.”
Follow Dr NZ’s six-month adventure on BBC ALBA and BBC iPlayer on Boxing Day (Thursday 26 December) at 9pm, in Gaelic with English subtitles.
Watch live or on demand: https://www.bbc.co.uk/programmes/m0026fxc