Self-Referrals

I am curious as to how many practices in this specialty take self-referrals outside of second opinions. It was my understanding that this was not allowed by Medicare and other big carriers. That was our practice rule as well when I began 10+ years ago.

Is this still the case or am I thinking too "old school"? If there are any links/written rules on this....please post here also!

Thanks in advance.

Self-Referrals