The GP shortage, and what happens after hours

Panels reach for this because it is the most immediate health story in the country and because the mechanism is unusually clean: a funding formula, a workforce curve and a co-payment, producing a queue somewhere else. A candidate who can walk that chain has done more than express concern.

Here is the version worth holding. New Zealand made a settlement in the late 1930s in which hospitals became free and general practice stayed private with a state subsidy. Nearly ninety years later that subsidy is capitation, the private part is the co-payment, and the seam between the two is where the access problem lives. Everything else follows from that.

Patients enrol with a practice, which belongs to a primary health organisation. The PHO receives a capitation payment for each enrolled patient — a fixed sum per head per year, weighted for age and sex and, through schemes such as Very Low Cost Access and interim measures for high-need populations, for deprivation and ethnicity. The practice then charges a co-payment at the visit, which varies widely by practice and is free for children under 14 and lower for community services card holders.

Capitation has real advantages over fee-for-service: it pays a practice to keep a population well rather than to generate visits, and it makes long consultations and nurse-led care financially viable in a way item-of-service billing does not. Its weakness is that the payment is set centrally and adjusted annually, so if the adjustment lags wage and premises inflation the shortfall lands on the patient as a higher fee, or on the practice as a loss. Practices that cannot make the arithmetic work either raise fees, restrict enrolment, or close.

That is what closed books actually mean. A practice with more enrolled patients than it can safely serve stops accepting new ones, and a person moving to that town has no practice to join — so their care becomes episodic, delivered by whoever is available, with no continuity and no record.

The supply side is the part that cannot be fixed quickly. A significant share of the GP workforce is over 55 and approaching retirement, while the pipeline into general practice training has not expanded proportionally. New Zealand has also relied heavily on internationally trained doctors — one of the highest proportions in the OECD — which works while other countries are not competing for the same people, and is fragile when they are.

Why trainees choose otherwise is worth stating without judgement. General practice training is three years against five or more for hospital specialties, but earnings are lower, and buying into a practice partnership means taking on business risk that a salaried hospital job does not carry. Undergraduate exposure to general practice is limited relative to hospital specialties, and students choose what they have seen. And a practice under financial strain with closed books is not a compelling advertisement for the career.

The responses have been at both ends: more GP training places, financial incentives, a rural pathway, and moves to make more use of nurse practitioners and pharmacist prescribers. The honest note is that a doctor entering medical school now will not be an independent GP for about a decade, so every short-term answer to this problem has to be about someone other than a new doctor.

Four kinds of lever, and a strong answer picks one and is honest about what it does not fix.

Money into capitation. Increasing the per-patient payment, or weighting it harder for deprivation and ethnicity, addresses the funding shortfall directly and is the option the sector asks for. It costs a great deal and does not by itself produce more doctors.

Workforce. More GP training places, bonded and rural incentives, and faster registration pathways for internationally trained doctors. All slow, all necessary.

Skill mix. Nurse practitioners with prescribing rights, pharmacist prescribers, expanded nursing roles and health improvement practitioners in practices. This is the fastest lever available and it runs into the same scope-of-practice arguments as everywhere else.

Alternative front doors. Telehealth services, after-hours phone advice, and urgent care capacity. These relieve pressure and can fragment care further, since a telehealth consultation with a doctor who has never met the patient is not continuity.

This arrives in three shapes. The direct one: "Why is it so hard to see a GP?" The scenario one: a patient who has not been seen for two years arrives with advanced disease. And the disguised one — "What is the biggest problem facing New Zealand healthcare?"

For the direct question, walk capitation, co-payment and workforce in that order. For the scenario, ask about enrolment and cost before assuming anything about the patient. For the disguised question, use general practice as the front door and trace the consequences outward.

Start with the Royal New Zealand College of General Practitioners workforce survey, which is where the retirement and training figures come from, then the Ministry of Health pages on enrolment and capitation. The New Zealand Health Survey gives you the cost-barrier data.

Two pieces here give you the surrounding system. How the New Zealand health system actually works explains the free-hospital and paid-GP settlement this rests on, and the health reform story is the restructure it is happening inside. For the interview formats, see our New Zealand interview guides.