Namu Atoll's practical link to Honolulu, Hawaii, sets it apart from many remote Pacific destinations on this list: the Marshall Islands' close ties to the United States mean that serious medical cases here are routinely referred not just to the country's own capital but on to Hawaii, and that two-step journey is the honest core of why travel insurance matters for a trip to Namu.
Local health services on the atoll itself are minimal, sufficient for the smallest complaints and little beyond that. Anything more serious is typically stabilized where possible and evacuated to Majuro, the Marshall Islands' capital and the country's main hospital, with further specialist treatment generally meaning an onward flight to Honolulu. Confirm your policy explicitly covers both inter-island transfer within the Marshall Islands and international medical evacuation to Honolulu, since a policy limited to local or even Majuro-based treatment stops short of where a serious case actually ends up.
Getting to and from Namu at all depends on infrequent field-trip ships or small aircraft serving the outer islands, and these schedules can slip for reasons as ordinary as weather, cargo priorities, or simple availability - a factor worth planning around regardless of what brings you to the atoll. The Marshall Islands sit at the edge of the Pacific's typhoon-affected zone, and while direct strikes on Namu are uncommon, the broader storm season, roughly June through November in this part of the Pacific, can still disrupt the inter-island transport this trip already depends on.
Keep any clinic paperwork from Majuro or Honolulu, records of your inter-island transport arrangements, and receipts for any medical transfer, since documentation from an outer atoll this remote is easy to lose track of. Check whether your existing health cover extends this far into the Pacific - most home policies do not - and confirm your travel policy's evacuation claims process before you depart, since Namu leaves little margin to sort out gaps after something has gone wrong.