Health Navigator NZ is an online front door to health information and self-help resources for families, whanau and caregivers….. HEALTH LINE PHONE 0800 611 116 FOR FREE 24-HOUR HEALTH ADVICE Healthline is a free telephone health information service for all the family. The service is staffed by registered nurses who will assess your health needs, and give information and advice to help you decide on the best level of care.