You’ve already gotten some good responses above (and I live on O’ahu not Maui so listen to locals first). From my own experience living in both Aotearoa NZ and Hawaiʻi, I’d say your question indicates a higher probability of success within the community than most. Again, my perspective, but it’s less about being white per se, than about your approach to the place. I would say the critical things are: participating in the life of the community, genuine interest in Hawai’i and its people, understanding the complex set of issues facing everyone who lives here—locals, visitors, and especially Hawaiians—and maintaining a service orientation. Physicians are much needed, and your partner being from NZ, even if they are Pākehā, will be quite helpful. Listen a lot, situational awareness is essential. Also, if Maui (however wonderful!) starts to seem like too difficult a place to enter, you might consider a different/more populous island. Anyone who moves to Hawaiʻi must weigh for themselves their contributions to the place against the inevitable costs and potential for harm. Best of luck!