HomeNZ Medical Roles

NZ Medical Roles Explained

Understanding HO, SHO, Registrar, and Trainee Registrar — where do IMGs fit in?

NZ Hospital Hierarchy

The New Zealand hospital system has a clear hierarchy of medical staff. Understanding these roles is crucial for IMGs — both for your NZREX exam and for navigating your career in NZ.

Consultant / Specialist / SMO

Vocational scope — Fully qualified specialist

The senior doctor who has completed vocational training and holds specialist registration. Consultants make final clinical decisions, supervise registrars, and are responsible for patient care overall.

FellowshipVocational Registration10+ Years

Registrar / Trainee Registrar

Post-graduate training — Specialist trainee

Trainee Registrars are doctors in specialist formal college training programme. A Non-trainee Registrar is not enrolled in to a training program yet (service role) and are often doctors who are trying out various specialties before deciding on which one they would like to apply to. All Registrars manage day-to-day patient care and supervise junior doctors.

PGY 3+Specialty TrainingSupervised Practice

Senior House Officer (SHO)

Junior doctor — Gaining experience

An SHO is a junior doctor with 2-3 years of post-graduate experience. They have more responsibility than an HO, may run clinical services under supervision, and are preparing for registrar roles. Most UK (and comparable healthcare system) grads enter the NZ system at SHO level. NZREX grads DO NOT usually start here.

PGY 3-4RotationalCommon IMG Entry

House Officer (HO)

First-year doctor — Foundation role

The House Officer is the most junior doctor in the hospital hierarchy. They work under direct supervision, manage routine patient care, and rotate through different specialties. Equivalent to "junior resident", "RMO" or "FY1" in other countries. NZREX grads usually start at this level (PGY1).

PGY 1/2Provisional RegistrationSupervised

What's the Difference: Registrar vs Trainee Registrar?

Trainee Registrar

  • Enrolled in a formal college training programme
  • Has a clear training pathway and milestones
  • Rotates through approved training positions
  • Has structured supervision and assessment

Registrar (Non-Training)

  • Working at registrar level but not in a training programme
  • Service role — filling a workforce need
  • May apply for training later
  • Still supervised by a consultant

Where Do IMGs Typically Enter?

Most IMGs who pass NZREX enter the NZ system at House Officer / PGY1. Your entry point is influenced by:

Country of Graduation — Comparable Healthcare System = likely to skip PGY1, enter PGY2 onwards
Registration in Comparable Healthcare Systems — Registration and experience in these countries helps
Specialty exams — Can influence where you start, especially if you apply for Vocational Registration
MCNZ scope (General/Vocational) — Your registration scope determines what you can do

Key Terms

PGY = Post-Graduate Year

DHB = District Health Board

RMO = Resident Medical Officer

SMO = Senior Medical Officer

CME = Continuing Medical Education