Got a phone call from Dr B's office a little while ago. My hematocrit levels went down again, so he is referring to me a hematologist. The doctor he referred me to is just next to Dr B's office! How convenient is that?! I just looked him up to make sure he's on my insurance's list of providers and he is! Woohoo! So I don't have to pay extra. I'll call first thing in the morning for an appointment.