Hollering her name and medications all over the store is bad enough, but it just got a whole lot more public with the lawsuit and this article in the paper.
Is "Crazy", and "psycho" entered by a drugstore clerk "medical information" - or more technically, "protected health information"? I don't think so. It is an opinion only, and certainly not a medical diagnosis, as the article itself even states. Also, HIPAA obviously does not prohibit health care personnel such as the Walgreens pharmacists working different shifts from sharing at least some "protected health information" with each other. Even though the informatoin is linked throughout the Walgreens nationwide database, it is unlikely that anyone who works at Walgreens spends time reading comments made about customers other than the one they are waiting on at any particular time.
There may be some kind of lawsuit here, but I don't see a HIPAA violation.