We'll see what the PM system with AC comes up with. You guys are right that my PM system has a scheduler and will call patient's the day before their appointment for reminders but I use AC's scheduler as it seems to make the office flow better. Ideally, if AC's PM system is worth a dang, we would become an all AC office. The scheduler with my PM system is much better than ACs but except that AC's is quicker because it's in house on my server versus over the web.
At this point in time, I have no good way to remind me that patient's are due a colonoscopy and send out mass mailings for everyone who is due for one each month. Definitely a work in progress.
Maybe I'll create a big old fashioned log book.