Ah, I see, and take your point. I should have worked on a more reader-friendly version of this graph so I just assume people don't understand its bizarre nature. But, my work had been done many years ago with the investigation.

Here's the part that stood way out even with that unsophisticated graph: the flat land between various prescription codes. It's just there. It draws the eye and makes you ask questions, which is what we did. Another dimension not pictured there is distribution of doctors vs prescriptions. Theirs stood out on that too.

Even in their busiest years, they didn't treat any common ailments with any degree of distributed variety. By contrast, rest of the clinics did business as usual: whoever walked through their door got treated for whatever random thing they had.