National Insurance number
The National Insurance number is a number used in the United Kingdom in the administration of the National Insurance or social security system. It is also used for some purposes in the UK tax system. The number is described by the United Kingdom government as a "personal account number".
NHS Pension Scheme
The NHS Pension Scheme is a pension scheme for people who work for the English NHS and NHS Wales. It is administered by the NHS Business Services Authority, a special health authority of the Department of Health of the United Kingdom. The NHS Pension Scheme was created in 1948.