NVR2L8, you probably should have mentioned to the surgical staff that you had relatives who could access your schedule and that you didn't want any confidential information on the surgery to be accessible by them. Perhaps your file should be flagged to make sure it can't be accessed without setting off some sort of alert.
We know from the September Watchtower, 1987 and other articles that the WT encourages loyal JWs to treat HIPAA and similar laws as mere suggestions and as not binding to a God-trained conscience.