• Hannah

What's involved in a D4 Driver's Medical?

A D4 Driver's Medical is a medical check performed by a GP to ensure that a person is physically and mentally fit enough to drive a Passenger Carrying Vehicle (PCV), Heavy Goods Vehicle (HGV) or Large Goods Vehicle (LGV). We are often asked about the driver medical and what's involved in order to complete the DVLA D4 medical form. Hopefully, we will be able to answer the questions you have about this medical before you're due to go. The main thing to keep in mind is not to worry. You do not need to be in perfect health (not many people these days are!), just reasonably good health. Do not be put off applying due to minor medical conditions, it's important to undergo your medical to see how you do. What's likely is that you may be in better health than you think you are. The D4 driver medical will be required each time your license comes up for renewal, to make sure the information is up-to-date and that you are still safe and clear to drive a PCV, LGV or HGV. 

Who conducts the driver's medical?

The driver's medical must be conducted by a doctor or GP registered in the UK through the General Medical Council (GMC). You are able to have a driver's medical through your NHS practice or through a private GP. However, many NHS surgeries will no longer conduct driver medicals anymore, due to the difficulty in obtaining insurance to cover driver medicals. It is for this reason that it may be easier to visit a private GP to have your medical test conducted.

The eyesight part of the medical is conducted by an optician and should be completed before your medical with the doctor. You will need to take your D4 medical form to the opticians, and also remember any driving glasses or prescriptions will need to be taken with you to the opticians. Any high street optician can carry this part of the medical out, and it is normally conducted free of charge.

If I can't get it through my NHS GP, how much will it cost?

Prices can vary drastically depending on where you go and prices range from around £50 to £150. These prices vary depending on who is conducting the medical, overheads and how much it costs to cover for insurance purposes. Some GPs can sometimes take more time conducting the test to be thorough, and this time may be reflected in the cost.

At Vaila Health the cost of a PCV, HGV or LGV medical is £90.

What do I need to take to the driver's medical?

You need to take a few things with you to your medical appointment. It is important to remember your driving license and your D4 medical form (as the GP may be unable to conduct the medical without them!). You also need to take a list of any current medications you are taking and any hospital letters or details or letters from hospital consultants if you are being treated for any medical conditions or concerns. 

To speed up the process of the medical, it may be worthwhile completing the first page of the D4 form and add your name and date of birth to the pages and any other relevant information before attending your appointment. The medical is comprised of two parts; the interview, and the physical examination, and usually takes around 30 minutes to complete.

What is discussed during the driver's medical interview?

The interview is also conducted by the GP, and during this, they will discuss with you any existing medical conditions you have which may interfere with your ability to drive safely. It is a criminal offence to make a false medical declaration to obtain a driving license, so you must be honest with the GP during this discussion.

Below is a list of items you may be asked during your interview:

  • If you have any neurological issues, such as seizures, strokes, blackouts, etc.

  • If you have diabetes

  • You will be asked if you have had any history of mental health issues including depression, dementia or psychosis. 

  • You will be asked if you have any heart conditions and what current medications you are on (this is where the medication list comes in handy!).

You will also be asked about your general health, whether your drink or smoke and if you have any issues with your hearing or problems sleeping. Again, it's important to be honest during your interview with your GP. Your D4 medical form will have more information on what may be discussed during this part of the medical.

What happens during the driver's medical physical examination?

This part of the test helps the doctor to establish if you are healthy enough to drive a PCV, LGV or HGV without putting yourself or anyone else at risk. Don't worry too much about this, and remember you do not have to be in perfect medical health, just healthy enough not to put anyone at risk whilst on the roads. 

During the examination, the doctor will check your blood pressure, urine, height and weight, and note all the information on the D4 form for you. It's as simple as that! There may be additional tests required if you have indicated health problems, but in most cases, the medicals are completed simply and easily in just 30 minutes.

Handy hint: Double check your medical D4 form before you leave the GP surgery!

Double-check that the information you have added is correct and legible, and check that your doctor has filled out all the sections on the form and has signed all relevant pages. Your doctor will pass you back the form, and it is your responsibility to send it across to the DVLA so they can process your application. The medical is valid for four months, so it is important to send across the form to the DVLA as soon as possible, so you do not have to end up paying for another medical.

What medical conditions are likely to affect my application?

There are no definitive yes or no scenarios to which medical conditions could prevent you from passing the examinations, but if you have any of the below conditions then it is likely that your LGV, PCV or HGV license may be refused: 

  • Epilepsy

  • Insulin treated or dependent diabetes

  • Poor vision

  • A progressive or degenerative illness or disease

  • A history of alcohol or drug abuse

  • Severe mental illness

  • Any physical disability which may impair your driving abilities

  • Heart issues

  • Neurological disorders

  • Certain prescription medications.

However, you should not let this put you off of applying for your license. If some of your conditions are in the past, then you may still be able to pass your examination. All medicals are conducted on a case by case basis, and you may still be ruled fit to drive even if you have had a previous medical concern.  

Is there anything I need to do after I've passed my driver's medical?

Even when you have passed, you will still need to report any future medical conditions that could affect your driving to the DVLA. The conditions include any of the above listed in the interview section and also any other conditions such as cancer. Essentially, it's better to let them know than not declare something that could come back to bite you later on.

Once you have reported a new medical condition, it may be requested that you undergo a new driver's medical. It is important that you keep in mind that these tests are not designed to stop you from driving, but rather to make sure you can physically and mentally handle the responsibility of ensuring the safety of yourself and others whilst on the road for work.

At Vaila Health

We offer PCV, LGV and HGV driver's medicals at our clinics in St Andrews, Perth and Dundee, for just £90. The eyesight part of the test must, however, be conducted by an optician, although the benefit of this is that the sight part of the test is usually free of charge. Once you have completed the sight section of the D4 medical, you will be able to make an appointment with one of our GPs to have the rest of the medical conducted. Remember to bring the D4 form and your driving license with you, along with a list of any medication you currently take. The test should take no longer than around 30 minutes, and the GP will provide you with a completed D4 DVLA medical form to send off to the DVLA.

In summary

The D4 driver's medical is conducted for those looking to obtain a license to drive a PCV, HGV or LGV. The medical includes a sight test which is conducted at an opticians free of charge, and an interview and physical examination conducted by a registered GP. Costs range from around £50-£150 depending on where you choose to have your medical done. The medical is conducted to ensure your safety and the safety of passengers, other vehicles and pedestrians so it is important that you are honest during your medical and that it is conducted thoroughly by a GP registered by the General Medical Council (GMC). 

Find your copy of the D4 Driver's Medical Form here.

If you have any questions about the D4 driver's medical or would like to book with us for £90, feel free to email us at to find out more. 


Vaila Health

St Andrews | Perth | Dundee

0333 577 5999 |


0333 577 5999

Croftwell Clinic, Prior Muir, St Andrews, KY16 8LP
Tay MediSpa Clinic, 53-55 York Place, Perth, PH2 8EH

Heal Clinic, 14 Dudhope Street, Dundee, DD1 1JU

Vaila Health is not an emergency service. If you have concerns about a serious urgent medical condition such as a Heart attack, Stroke or Meningitis then please dial 999 or go straight to A&E. © 2020 Vaila Health, All Rights Reserved

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