Actually AC does allow you to search medications for just one provider - any report can be run for an individual provider.
I see lists of patients who are not my own every day when I log on to the hospital computer or look up a radiology report in DR - this is not a HIPPA violation. If I open their chart and start digging around, that would be a HIPPA violation. This is true whether two doctors are partners, office mates, or complete strangers.
Finally, I am not sure what you mean by the charts being "mixed together". If we ever separate our office practices, I suppose we will each take a copy of the database and delete the patients that don't belong to us.
