No, Dunelm isn't currently running an NHS discount but that doesn't mean it will always be the case. We have seen Dunelm offer a 15% Blue Light Card discount in the past, so it may be offered again in the future.
The Blue Light Card discount is only available for those in the emergency services who have signed up for the subscription plan on the website. It costs £4.99 for a 2-year subscription and offers those working in the NHS, ambulance service, fire service, police, and similar sectors, up to 15,000 discounts across a huge range of UK stores.