“...require health-care providers to charge all patients the same rates.”
SO...we might then conclude that you, as a small business owner, charge ALL your customers the same rate for goods and services? I don’t think so.
Well, as a part owner of a small business, I can say we "do" charge all our customers the same rate for goods and services. And AFAIK, all our suppliers do the same. Of course, there "are" discounts for quantity purchases, but any customer is eligible for them.