In In re Boone, 223 S.W.3d 398, 405-06 (Tex. App.--Amarillo 2006, orig. proceeding), a physician assistant was supervised by a physician, and both were held to have violated a single standard of care that dealt with when to discontinue anticoagulation medication following surgery. Boone, 223 S.W.3d at 405-06.
The Amarillo Court concluded that, "while relators may disagree with the expert's opinions concerning the standard of care applicable to each of those individual defendants, the report contains a fair summary of his opinions and adequately informs them of the specific conduct called into question." Id. at 406.