What is a locum doctor?
/What is a locum doctor, and why SA healthcare can't function without them
Every day, across South Africa's hospitals, clinics and health facilities, a doctor calls in sick, takes leave or hands in their resignation. The ward still opens. The patients still arrive. The shift still needs to be covered.
That gap is filled by a locum doctor.
Locum cover is not a stopgap. It is part of how safe staffing is planned, and facilities that treat it as an emergency measure carry risks they don't need to. This post sets out what a locum doctor is, how the role works in practice, and why the South African health system could not function at its current scale without them. Nursing Services of South Africa has been in healthcare staffing since 1943, and what follows draws on that experience.
What does "locum" mean?
The word comes from the Latin locum tenens, meaning "one who holds the place." A locum doctor is a qualified, registered physician who steps into a temporary role at a healthcare facility, covering for an absent colleague or filling a vacancy while a permanent appointment is made.
The key word is temporary. A locum is not a trainee and not a student on placement. A locum doctor holds the same qualifications, carries the same clinical responsibilities and delivers the same standard of care as any permanent member of staff. The difference is duration and flexibility.
That is also why the term is often misunderstood. Some facilities assume temporary cover means a compromise on quality or continuity. In practice, a properly verified locum who is matched to the setting is held to exactly the same standard as the doctor they are covering.
What locum doctors actually do
A locum doctor performs the full scope of their specialty or general practice role. They consult patients, make clinical decisions, write prescriptions, refer, admit and discharge, exactly as a permanent doctor would. Their registration with the Health Professions Council of South Africa (HPCSA) remains active and in good standing. Before any placement, a reputable locum agency verifies that registration, together with the doctor's qualifications, indemnity insurance and compliance documents.
In practice, locum doctors work across every type of healthcare setting in South Africa:
Private hospitals needing cover for a specialist on leave
Government and provincial hospitals managing staff shortages
GP practices requiring a stand-in during holiday periods
Day clinics that need temporary capacity during peak demand
Occupational health sites at mines and industrial facilities
Old age homes and frail care facilities without a resident doctor
Rural and remote clinics with limited permanent medical staff
Military hospitals, correctional services and academic teaching hospitals
The clinical work is identical to permanent employment. What changes is the structure of the engagement.
How a locum doctor engagement works
A healthcare facility identifies a gap: a vacancy, a period of leave, an unexpected absence or a surge in patient demand. It contacts a locum doctor staffing agency. The agency matches the facility's requirements (specialty, location, shift pattern and duration) to a pool of verified, available doctors.
The agency handles compliance, documentation and coordination. The facility receives a qualified doctor, ready to work, without carrying the full administrative and employment burden of a permanent hire.
For the doctor, the arrangement offers flexibility. They choose when and where they work, take on assignments that fit their availability and maintain their clinical skills across different environments. Many locum doctors are between permanent positions, building experience or deliberately choosing independent practice as a career model.
The agency can move quickly, but the best outcomes come from facilities that have a relationship in place before the gap appears. A placement made with time to match the doctor to the setting is a better placement than one made in a crisis.
Locum doctor vs permanent doctor: what is the difference?
The clinical role is equivalent. The structural difference comes down to four factors.
Duration. A permanent doctor joins a facility on an open-ended employment contract. A locum doctor covers a defined period: a single shift, a week, a month or longer.
Employment relationship. A permanent doctor is an employee of the facility or practice. A locum doctor typically works through an agency or as an independent contractor, which changes how tax, benefits and liability are structured.
Flexibility. A permanent hire requires notice periods, recruitment timelines and onboarding. A locum placement can happen within 24 hours when urgent cover is needed.
Cost structure. Permanent employment carries fixed costs: salary, benefits, leave provisions and employer contributions. Locum cover is variable, scaling up or down with actual demand.
Neither model replaces the other. Permanent staff provide continuity, institutional knowledge and long-term patient relationships. Locum doctors provide agility, the ability to maintain safe staffing ratios when permanent capacity falls short. The facilities that manage this best treat the two as parts of one staffing plan, not as alternatives.
Why South Africa's health system depends on locum doctors
South Africa faces a documented shortage of doctors relative to its population. According to the South African Medical Association, the country has fewer than 9 doctors per 10,000 people, well below the World Health Organisation's recommended ratio. That shortage is uneven. It concentrates in rural provinces, in public health facilities and in specialties such as emergency medicine, anaesthetics and psychiatry.
Against that backdrop, locum doctors do more than cover leave. They sustain services that would otherwise close. A rural district hospital with a single permanent doctor cannot function if that doctor is ill or on annual leave without a locum in place. A private hospital cannot safely run an ICU or a casualty unit below minimum doctor-to-patient ratios. A day clinic cannot see its full patient list if its GP is away.
The National Health Insurance (NHI) framework is also likely to increase pressure on healthcare staffing as it rolls out. As the system attempts to extend access to primary and secondary care across a wider population, demand for flexible, deployable clinical staff, including locum doctors, will grow, not shrink. For facilities, the practical lesson is to build locum relationships and compliance checks into staffing plans now, rather than waiting for demand to force the issue.
What to look for in a locum doctor
Whether you manage a private hospital, a public health facility or a GP practice, the standard you hold a locum doctor to should match the standard you hold your permanent staff to. Most facilities check registration. Fewer check whether the doctor has worked in a comparable setting, which is often what determines how quickly they settle in. Verify:
Relevant qualifications and specialist recognition where applicable
Valid professional indemnity insurance
Up-to-date compliance documentation
A track record of locum placements in comparable settings
A credible locum doctor staffing agency carries out this verification on your behalf, maintains a live database of compliant candidates and provides 24-hour support to handle urgent placements.
Nursing Services of South Africa has placed locum doctors across private hospitals, government facilities, occupational health sites, remote clinics and specialist environments since 1943. Every doctor on our books is HPCSA-registered, fully verified and ready to step in at short notice.
The bottom line
A locum doctor is a qualified, HPCSA-registered physician who fills a temporary medical role, delivering the same standard of care as permanent staff, with the flexibility to respond to gaps that would otherwise leave patients without a doctor.
South Africa's healthcare system is stretched, and patient demand does not pause because a doctor is unavailable. Locum doctors are the mechanism that keeps wards open, clinics running and patients seen, every day, in facilities of every kind, across every province. The facilities that serve their patients best are the ones that plan for that cover before they need it.
Ready to place a locum doctor? Contact Nursing Services of South Africa, available 24 hours a day, 365 days a year.
NSSA WhatsApp Chat: 060 070 2436 | Tel: 087 357 0642 | Email: info@nurses.co.za
