Some of that lab work is contracted out of the NHS, but your NHS doctor is largely steered by clinical guidelines rather than profit or ass-covering. Eg https:

Some of that lab work is contracted out of the NHS, but your NHS doctor is largely steered by clinical guidelines rather than profit or ass-covering. Eg https://www.synnovis.co.uk/about-synnovis https://www.synnovis.co.uk/about-synnovis