AB, Harvard University, 1952; Master of Arts in Teaching, Harvard University, 1954.
Assistant commissioner Food and Drug Administration, Washington, 1965—1968. Consultant, writer Cron Communications, Chevy Chase, Maryland, 1969—1977, from 1991. Director information Federal Trade Commission, Washington, 1977—1979.
Speech writer Office of Surgeon General, 1979—1989. Director information National Association Elementary School Principals, Alexandria, Virginia, 1989—1991. Editor Better Ways to Health, Chevy Chase, 1995—1996.
Co-founder Magnificent Public, Bethesda, Maryland, 2005. Adjunct professor journalism George Washington University, Washington, 1979-1996. Writer, editor National Institutes of Health, Bethesda, Maryland, since 1991, National Health Service Corps, Bethesda, since 1992, National Science Foundation, Washington, since 1993, Cardiology Research Foundation, Washington, since 1995, National Academy of Sciences, since 1996.
Chairman board directors Education Study Center, Washington, 1968-1973. Trustee Intermet, Washington, 1971-1975. Board directors National Coalition Consumer Education, Madison, New Jersey, 1989-1994.
Member Washington Indiana Writers, District of Columbia Science Writers Association, New York Academy of Sciences.
Married Rosalie Heilpern, January 17, 1954 (deceased December 1998). Children: Elizabeth Daryl Koozmin, Adam David. Married Suzanne Harris, February 11, 2005.