Scouseboy
What was your purpose of posting/starting a thread
"Facts about your old NHS number in England" ?
It was not a query.
You did not define "old NHS number" nor why you added "in England"
What was your purpose of posting a mention of "wiki" ?
You did not define what should be the search parameter for/within "wiki"
National Insurance Numbers (NINOs) have always been a National Insurance account number where your National Insurance contributions (deductions from pay) have been accumulated.
You may (still) ask for a statement(/balance) of your contributions.
(Try it!)
You must give your NINO (as above) to reference your NI Account
The amount in your account is what your Retirement Pension is based upon.
Format of NINO is XX 123456 Y cc (from initial conception)
Where XX is various (exclusions apply), always alpha (Temporary NINO = TN)
123456 (Temporary NINO = ddmmyy DoB)
Y (accounting identity / Temporary NINO = value "X" /) Always alpha, Now seemingly unecessary
cc Check chars/digits allowed for on initial design, never publicly implemented
NINO has never been used as NHS number, nor vice versa.
So, NINO format currently XX 123456 as per my latest HMRC correspondence.
My NHS number is now format 123 456 789 as per my latest hospital visit(s)
To be able to work in GB you must have a NINO
Ray