It turns out that the designers of Discourse thought that was a problem that they would want to solve.
There is not. Discourse is designed to support Civilized Discussion. Reddit is the opposite of that. If you want Reddit, you should use Reddit.
But some will. What I would recommend is that you make the site be www.healthcareworkers.com and use forcewww.com to redirect the non-www to your forum. There are many other ways to solve that problem.