Paul Kotin, M.D.
NIEHS Director 1968–1971

David P. Rall, M.D., Ph.D.
NIEHS Director 1971–1990
NTP Director 1978–1990

Kenneth Olden, Ph.D.
NIEHS and NTP Director
1991–2005

David A. Schwartz, M.D., M.P.H.
NIEHS and NTP Director
2005–2007

Linda S. Birnbaum, Ph.D., D.A.B.T., A.T.S
NIEHS and NTP Director
2009–2019

Richard Woychik, Ph.D.
NIEHS and NTP Director
2020–2025

Martin Rodbell, Ph.D., Nobel Laureate
Nobel Prize in Physiology or Medicine
1994
NIEHS Scientific Director
1985–1989