Josh Dresner Josh Dresner Copyright NHS Digital User researcher Josh Dresner is a user researcher working on the NHS app. Blogs By Josh Dresner. 14 October 2019 Why is there an 8am rush on the NHS App? Josh Dresner, User Researcher, has been digging deep into users' experience of the NHS App. He has found some GP practices using the app to transform access to services, while others are still stuck in old ways.