Accident and emergency, mental health and surgery are the services most commonly complained about at the Lakes District Health Board.
Lakes DHB chief executive Ron Dunham said the Health and Disabilities Commissioner (HDC) received eight complaints about care provided by the health board in the first six months of this year. One of the complaints was investigated further.
The complaint rate was 72.97 per 100,000 discharges, below the national rate of 84.67.
Mr Dunham said the service types receiving the most complaints were accident and emergency, mental health and surgery. Care and treatment was the most common issue.
Health board communications officer Shan Tapsell said all complaints offered an opportunity to improve services.