Under Hammergren’s leadership, McKesson has emerged as the leading provider of supply, information and care management solutions designed to reduce the cost and improve the quality of healthcare. During his tenure, the company has more than doubled its revenues to $102 billion, expanded into new markets and advanced to number 18 on the Fortune 500. It also has experienced a cultural transformation driven by the establishment of a set of core values ICARE, a commitment to continuous process improvements and a collaborative approach to serving its customers.

This year Hammergren co-authored the book, Skin in the Game: How Putting Yourself First Today Will Revolutionize Health Care Tomorrow, in which he describes the history of America’s healthcare system, provides an explanation of its current state and outlines the great strides that he sees being taken in the near future.

In 2009, Hammergren will become the chairman of the Healthcare Leadership Council, a coalition of chief executives of the nation’s leading healthcare companies and organizations. In addition, he has been named one of Modern Healthcare’s “100 Most Powerful People in Healthcare” five years in a row. Hammergren is a member of the Hewlett Packard board of directors. He also is a director of Nadro, S.A. de C.V., a leading pharmaceutical distributor in Mexico.