Not all services require a referring physician's name on a Medicare claim.

Medicare bundles all post-operative care (including complications) unless the complication requires a return trip to the operating room.

A nurse practitioner can bill Medicare for consultations, but must do it under his or her own number within a group.

With one exception, Medicare doesn't pay for consultations over the phone.

Medicare bundles the local anesthetic and its administration into the procedure.

Time limit for filing a claim varies; can be as few as 15 months or as many as 27 months.

The code for multiple lesions includes the first one that is treated.

Any related services on the same day as admission are bundled into the payment for H&P.

Inconvenience codes can't be used for visits within "office hours."