What does this say about a doctor

So I love the doctor that delivered both of my babies, she’s just all around awesome. The other day I was reading reviews on yelp from about something that seemed a-little odd to me. Three reviews from different patients said they had been loyal patients of this doctor for many years and some even had their kids delivered by her. All of these ladies had similar situations where they had leave the doctors practice because they either lived too far or moved out of town but came back and wanted to continue seeing this doctor. Well when they called to schedule an appointment they were told that because they had left the doctor as a patient they can no longer be seen at the practice. I don’t know what to think about that, it doesn’t sound made up and I don’t think my doctors office would do that.