If you manage drivers who need a D4 medical for their HGV, LGV or PCV licence, you may have wondered whether their own GP can simply carry out the assessment. It seems like the obvious, convenient option. In practice, the answer is more nuanced, and understanding why matters if you want your drivers back on the road quickly and without delays to their licence.
Technically, yes. Any doctor who is fully registered with the General Medical Council and licensed to practise in the UK can complete a D4 medical examiner's report, and that includes a driver's own GP. There is no legal requirement for the assessment to be carried out by a specialist occupational health provider.
However, being legally permitted to do something and being well set up to do it properly are two different things. This is where employers who send drivers to their GP by default often run into avoidable problems.
D4 medicals are not an NHS service. They are a private appointment that falls outside a GP's core contracted work, which means many practices simply do not offer them at all. Where a GP does agree to carry one out, it is usually treated as an add-on to a busy clinical list rather than a dedicated service, and appointment slots can be difficult to secure at short notice.
This creates a real problem for fleet managers. If a driver's D4 is due for renewal and their GP cannot fit them in for several weeks, that driver may end up unable to work Group 2 duties while you wait. For a business relying on a full complement of licensed drivers, even one gap in your rota can disrupt schedules and contracts.
A general GP sees a huge range of patients and conditions every day, and DVLA fitness-to-drive standards are a small, specialist part of that workload. Group 2 licences carry a higher medical bar than a standard car licence, covering detailed vision requirements, cardiovascular checks and neurological assessment, and the doctor completing the form needs to know exactly what the DVLA is looking for.
Doctors who carry out D4 medicals regularly, as opposed to occasionally, tend to be faster and more accurate at spotting borderline issues before they become a problem. This matters because an incorrectly completed or incomplete D4 form can be sent back by the DVLA, adding weeks to the renewal process and leaving your driver off the road for longer than necessary.
Vision testing is a good example. Group 2 eyesight standards are stricter than for a car licence, and not every GP practice has the right equipment or experience to test against them properly. If your driver's GP cannot complete the vision section, they will need a separate appointment with an optician or optometrist, adding another step and another wait to the process.
Because D4 medicals fall outside NHS funding, GP practices are free to set their own private fee, and this can vary considerably. Some GPs charge more than a dedicated driver medical clinic simply because it is not their core business and the appointment takes time away from NHS patients.
For employers managing several drivers, cost and convenience add up quickly. Sending each driver to their own individual GP means dealing with different practices, different fees and different waiting times across your workforce, with no consistency and little visibility over when each medical will actually happen. That makes it hard to plan ahead or track renewal dates with any confidence.
A specialist occupational health clinic carries out D4 medicals as a core part of its work, not as an occasional extra. That means appointments are more readily available, doctors are experienced specifically in DVLA Group 2 standards, and the full assessment, including vision testing, can usually be completed in one visit.
For fleet managers, this translates into fewer delays, fewer resubmitted forms and a more predictable process overall. It also means your drivers are examined against the same standard every time, rather than the outcome depending on which GP happened to see them that day.
There is a compliance benefit too. When you are responsible for keeping a whole fleet road-legal, having a single, reliable provider you can turn to for every driver's D4 medical makes it far easier to track renewal dates, plan appointments around shift patterns and demonstrate that you are meeting your duty of care as an employer.
If you only have one or two drivers due a D4 medical, sending them to their own GP might work out fine, provided the practice offers the service and can see them promptly. But for most fleet operators, haulage companies and logistics businesses managing several drivers across different renewal dates, relying on individual GPs creates unnecessary friction and risk.
A dedicated clinic that specialises in driver medicals removes that uncertainty. Your drivers get a thorough assessment from a doctor who does this work every day, appointments are easier to arrange around your operation, and you get a consistent point of contact for the whole fleet rather than a patchwork of different GP practices.
At Essential Medicals, we carry out D4 medicals for fleet operators, haulage companies and logistics businesses across Enfield and North London. Our doctors assess drivers against DVLA Group 2 standards every day, so your workforce gets an accurate result first time, including vision testing completed in the same appointment.
We offer flexible appointment slots to fit around your drivers' shift patterns, and for businesses managing multiple drivers, we provide block booking options that make scheduling simpler and costs more predictable across your fleet.
If you want a reliable, specialist alternative to sending your drivers to individual GPs, get in touch with our Enfield clinic to discuss D4 medicals for your workforce. Our team can talk you through the process and find appointment times that work around your operation.
