When you set up your chiropractic website, you will have some choices over how your internal linking is set up. There are roughly two types of structures you can have.
Flat architecture is when you are only a few clicks away from any page on your site. If you have an extensive menu system like ChiroMatrix can provide, then you can easily be in the clear for this and do well with Google.
Tall architecture is when you have to take a relatively large amount of clicks from the homepage to one of your smaller pages. The more clicks you have to go deep, the less credibility those bottom pages have with the search engines.
With your chiropractic website, try to keep your site architecture as flat as possible.