I guess you just have to figure out how to get a "good radiologist". I'm hazarding a guess that most Doctors (especially non-diving) aren't going to be in the frame of reference that submerging one's self is a proper idea from the start. I can see defensive medicine playing a large part in the doctor-patient conversation.
You might be surprised. Most physicians are receptive to their patients' recreational activities and want to help them continue. Diving physicians in particular do not like to tell divers that they can't dive, but of course there are absolute contraindications. The air trapping mentioned above would be one.
Perhaps a drive down to Duke is recommended for the OP post-treatment?
We would be happy to see him, though depending on where he is in Northern VA he might be closer to Shock/Trauma in Baltimore.