Koop served as surgeon general from 1982 to 1989, under Presidents Ronald Reagan and George H.W. Bush.
He was outspoken on public health issues and did much to elevate the office of the surgeon general.
He died at his home in Hanover, New Hampshire, the college said in a news release.
“Dr. Koop did more than take care of his individual patients — he taught all of us about critical health issues that affect our larger society,” said Dartmouth President Carol L. Folt. “Through that knowledge, he empowered each of us to improve our own well-being and quality of life. Dr. Koop’s commitment to education allowed him to do something most physicians can only dream of: improving the health of millions of people worldwide.”
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