The Bionic CIO

By ANDREA L. FOSTER

Harvard Medical School's technology chief tests a controversial implant on himself

Tom Cruise, move over.

John D. Halamka, Harvard Medical School's chief information officer, jets around the globe, scales mountains, and saves lives. And although he hasn't taken down traitors like Mr. Cruise's character in Mission Impossible, Dr. Halamka is nearly as audacious.

He is a doctor who has spent years in the emergency room and on improving technology at the medical school and