A new service is now live to help find your NHS number. This service is for anyone living in England who has forgotten or does not know their NHS number. You can also use this service on behalf of someone else where the name, date of birth and registered home postcode is known. You can opt for the number to be sent to you by text, email or letter.
Your NHS number is a 10 digit number, like 485 777 3456. It is on any letter you receive from the NHS.
You do not need to know your NHS number to use NHS services, but it can be useful to have it.