The short answer is .. it could be. Some cancer screening is done through your GP, like cervical cancer smear. But for historical reasons, this is not true of breast cancer. There is a national NHS Breast Screening Programme, which organises mammography, which are x-rays used to look for early breast cancer that you cannot feel. There are pros and cons of national organisation.
The test is very quick, and testing centres are usually in easily accessible places like your local supermarket carpark.
The programme provides free breast screening every three years for all women aged 50 and over. Because the programme is a rolling one which invites women from GP practices in turn, not every woman receives an invitation as soon as she is 50 (until 71) years. But she will receive her first invitation before her 53rd birthday. The system is coordinated by your near hospital breast cancer unit.
So what are the pros and cons?
Pros
Cons