Dietitian Appointments Dataset, Including Whether They Showed Up Or No-showed/last Minute Cancelation.

I am currently a MSDS student. I am trying to come up with an idea for my capstone project.

My wife is a Registered Dietitian and her biggest annoyance is the amount of no-shows and last minute cancelations she gets. I want to try to build a model predicting the likelihood of a patient keeping their appointment. Presumably based on features like payment method (out-of-pocket vs insurance), age, reason for appointment, etc.

Where can I get such data?

If I can’t find data for Dietitians specifically, I would look into other medical practitioners, so those leads would be appreciated as well.