The NCSC, the guideline body to the NHS consult, is entirely Cloud/SaaS/IaaS hosted, even it that technically forms PaaS too.
Excellent. Are they providing the funding to migrate to it? While the cloud is great as it forces you to properly realise and cost solutions on going, the knock on effect of this is, it costs money! The NHS does not have enough funding, does not fund IT sufficiently and the case for taking money directly out of healthcare and in to IT is always a tough sell unless it has clear benefits to providing healthcare.