How should I handle conflict between custom taxonomy and categories in a directory site?

[angelamaemae]

Hello! I posted about this a week ago but haven't solidly figured it out yet.

I'm building a website that is a directory of local therapists. I have categories for my blog and custom taxonomy to classify therapists. My problem is that my categories and my custom taxonomy overlap by necessity. For example I have the category "anxiety therapy" and the custom taxonomy "anxiety".

1. Will this confuse google?...Do you think google will be able to figure out the differences between my blog archives and my therapist listing archives?...even though their names are similar and in a couple of cases the same?

2. should I noindex my categories because the point of my site is to get customers to the directory....not the blog?.....even though the blog has lots of useful content? I should note here that I have my custom taxonomy pages set up so that they will display the 6 most recent blog posts in the corresponding category at the bottom of the page....so maybe that makes noindexing the categories more ok?

Thank you for your help!