Stress Echo supervision by Mid Level NP

[dkinser]

I have a coding question for Stress Echo's.
A mid Level NP or PA will be supervising the test in the office and the physician
will be reading the interp. I understand that the physician does need to be
in the office during the test. Would the following codes be correct?
93350 Billed under NP
93018 " " MD
93016 " " NP