At 42, still bearlike and buttoned-up, he looks slightly grizzled, a man in a hurry.

FORBES: The Second Coming

He usually works with Michael Argenziano, an affable, bearlike man who is chief of adult cardiac surgery. (Oz trained Argenziano, and they have worked together for years.) I hovered in the background, watching the operation on one of the giant monitors suspended from the ceiling.

NEWYORKER: The Operator