I don't know any surgeons personally, not any more, but my ex-wife was an RN that worked exclusively in surgery. I can't see any of those people stepping out of a surgery for a call from the insurance company. Hell, I called her mid-surgery, thinking I was having a heart attack and she hesitated to leave. And she was just the nurse!
Most of those guys were seriously crusty. Just can't see a surgeon saying, "Gosh! I have to bail mid-procedure and take this insurance call!" For that matter, I can't see anyone who would dare interrupt a working surgeon for anything short of a drastic family matter, maybe not even then. Something smells about this story.