Can a colon & rectal practice bill for a physician assistant's (PA) services for inpatient procedures (i.e. 44140, 44150, 44160, 44205, 44206, 44207)? If so, how much of the physician's billing amount can you bill for the physician assistant's services? Can someone direct me where to find information such as modifiers to use (i.e. 66 - Surgical Team) with surgical codes where PA is involved? Is there a CMS guideline that addresses billing for PA service? Any information will be greatly appreciated