Perhaps, like me, you're old enough to remember when doctors kept paper records to document your health and medical care (variously called a medical record, file or chart). I certainly remember those days... along with floppy disks, tape decks and rotary phones. And, while I always assumed that there might be idiosyncrasies in how each doctor or medical practice documented my health care, I sort of figured that the patient charts from different medical practices were more similar than they were different. Once paper records became less common and electronic health record (EHR) systems became the norm that assumption just transferred over to how I thought about EHR systems.
This is surprising to me for a few reasons. I see different doctors (who are part of different medical practices altogether), but they use an EHR from the same company. I know this because the patient portal that I access is the same for both, but I have to make sure that I'm logging into the right version of that EHR's patient portal or I'm communicating with the wrong office about medications and appointments.