They call her a doctor but she is not a medical doctor unless she has a second doctor degree
She has a PhD
Medical doctors get MD degrees that are not PhDs
There are research degrees called MDPhDs but these degrees do not allow you to practice medicine
Doctor David Duke actually has a degree with a name of the subject or field he got his degree in
I am going to assume her PhD does not count because it does not say what she got her PhD in in the article