01 — The practice
Primary care outside the government-funded framework: diagnosis, treatment, prescriptions, referrals, and screening. Independence means consultation length and approach are set by individual clinical need, and by nothing else.
Nutrition, movement, sleep, stress, and environment are assessed alongside conventional care. Where complementary approaches are considered, they are discussed openly, weighed against the evidence and the individual's circumstances, and never substituted for necessary conventional treatment.
Health rarely changes in a single appointment. Registration is for a year — long enough to understand a full history, make changes, and review what is actually working for that person. One-off consultations are not offered.
02 — Registration
1
Registrations are currently closed. People on the waitlist are contacted in order when a place opens.
2
The fee schedule, subscription terms, and what is and is not included are published before any commitment is made.
3
Registration covers a year of care, paid quarterly in advance. The first consultations build a complete picture of health and history.
4
Consultations in person in Nelson, or by secure video and phone where appropriate to individual clinical need, with the patient portal for administration between visits.
03 — The doctor
Dr de Villiers is a general practitioner with more than three decades in medicine. Her move toward integrative practice followed a plain observation: much of what fills a GP's day has as much to do with how a person eats, moves, sleeps, and lives as with anything a prescription alone can resolve — and those things differ for every individual.
Her practice remains grounded in conventional medicine — examination, investigation, prescribing, and referral where they are needed — extended with the time and attention that a small independent practice makes possible.
Registration and standards
Any doctor's registration can be verified on the Medical Council of New Zealand's public register.
04 — Fees
Health Function is not government-funded, which is what allows consultations to run to individual clinical need rather than the clock. In place of per-visit billing, patients pay a subscription: registration is for a year, billed quarterly in advance.
The complete fee schedule — what the subscription covers, what is billed separately (such as laboratory tests), and how cancellation works — is set out on the fees page and agreed before registration. There are no charges that have not been published first.
The subscription includes
05 — Questions
No. The practice is based in Nelson and sees patients from around New Zealand. Consultations are held in person or by secure video and phone where that suits the individual's clinical need; some assessments do require an in-person visit.
Conventional general practice, extended with attention to nutrition, movement, sleep, stress, and environment. Where complementary approaches are considered, they are discussed openly, weighed against the available evidence and the individual's circumstances, and used alongside — never instead of — conventional treatment that is needed.
Population guidelines are written for the average of many people; they are a starting point, not an end point. At Health Function, assessment and treatment are worked out for the individual — their history, circumstances, and goals — within the standards that apply to all registered doctors in New Zealand.
No. The practice works only with registered patients, because meaningful primary care depends on knowing a full history and having time to follow through. Registration is for a year.
Registrations are currently closed. The waitlist below is the only route in: when places open, people on the list are contacted in order.
Health Function provides ongoing planned care for registered patients. It is not an emergency or after-hours service. In an emergency always call 111; for urgent after-hours advice call Healthline on 0800 611 116.
Clinical records are held in the practice's clinical record system in accordance with the Health Information Privacy Code 2020. The waitlist form on this website is for contact details only — it is not a clinical channel, and health information should not be included in it.
Perspectives
Individualised medicine
Why the research that guides medicine is built on the average of many people — and what it means to study the only patient who is actually you.
The practice of medicine
How medicine was quietly automated — and what a small independent practice can do to keep it personal.
Physiology
The nerve that links mind and body, and why a heartbeat's tiny variation is a useful window onto an individual's health.
06 — Waitlist
Leave contact details below to join the waitlist. When places become available, people on the list are contacted in order. Joining creates no obligation on either side.
This form is for contact details only — please do not include health or clinical information. If you need medical help now, contact your regular general practice; in an emergency call 111.