NZNO President Grant Brookes said the lack of funding in primary health, iwi and Maori providers and DHBs was having a "negative ripple effect" at hospitals, "where people are queuing up for help".
Health funding will be a focus for Opposition parties this election year, with Labour saying underfunding in health and other crucial areas such as education mean the Government's suggestion of tax cuts is irresponsible.
Health Minister Dr Jonathan Coleman has said delivering better health services remains the Government's number one funding priority, and the Government's investment in health will reach a record $16.1 billion in 2016/17.
An ageing population and record immigration saw last year's Budget put an extra $2.2b into health during four years to help cope with an ageing population and record immigration.
Any additional health funding will be announced as part of next month's Budget.
There has been recent media attention on mental health services in particular, in response Coleman has acknowledged the increasing demand being placed on mental health and addiction services.