Certain Posts go to certain pages

I would like to be able to have separate pages for certain things. I would like any posts with a category of “Celiac” to go to a page I create on my blog. Everything else should go to the main page.

I’ve tried to “Write Page”, but I can’t see any way to filter the posts I want to go to that page. I’d like to be able to give the link of that one page to a group of folx I am helping out.

Is it possible to filter posts to go to somewhere else besides the main page?