Why listings decide more than your website does
Your website is the only source that says what you want it to say, which is exactly why a model does not trust it on its own. Listings are the corroboration. They are where an assistant checks that the clinic is real, open, in the city it claims, and offering what the site says it offers.
This is also the part that quietly rots. A suite number changes, a second phone number gets added for a campaign, a treatment is dropped from the menu but not from Yelp, and nobody notices because no listing shows an error. The clinic simply stops being named.