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David Michaels PhD, MPH is an epidemiologist and professor at the George Washington University School of Public Health. He has held high-level, Senate-confirmed public health positions in the administrations of President Barack Obama (in which he was Assistant Secretary of Labor for Occupational Safety and Health) and President Bill Clinton (Assistant Secretary of Energy for Environment, Safety and Health).

Michaels is a leader in efforts to defend the integrity of the science underpinning public health and environmental protections, and is the author of The Triumph of Doubt: Dark Money and the Science of Deception (Oxford University Press, 2020) and Doubt is Their Product (Oxford University Press, 2008), as well as numerous articles in Science, JAMA, and other leading scientific publications.

Since the COVID-19 pandemic began, Michaels has focused on improving the protection of workers exposed to SARS-CoV-2. He has written and consulted extensively on the topic and was a member of the Biden-Harris Transition COVID-19 Advisory Board. He served on the National Academy of Sciences, Engineering and Medicine’s expert panel that developed a Framework for Equitable Allocation of Vaccine for the Novel Coronavirus, and is a member of the National Academies expert panel on Respiratory Protection for the Public and Workers without Respiratory Protection Programs at their Workplaces.  He is a founding member of the Lancet COVID-19 Commission’s Task Force on Safe Work, Safe School, and Safe Travel, and was a member of the National Academy of Social Insurance’s COVID-19 Task Force Epidemiology Working group.

Michaels served as Assistant Secretary of Labor for Occupational Safety and Health from 2009 through January 2017, and was the longest serving administrator in OSHA's history.  Under his leadership, OSHA strengthened exposure standards for silica and beryllium, and issued new rules on safety, injury and illness record-keeping and reporting, and hazard communication. He launched OSHA’s Temporary Workers Initiative; greatly increased the agency’s activities protecting healthcare workers; expanded OSHA's activities to protect whistleblowers under Sarbanes-Oxley, Dodd-Frank, and 19 other financial, environmental, transportation, and public health laws; and issued OSHA's first compliance guide and recommended practices for employers for preventing and addressing workplace retaliation.


Since leaving OSHA, much of Michaels' work has focused is on the relationship between safety and health management systems, operational excellence and sustainability. He has lectured extensively on the topic and directed OSHA's first activities on sustainability in environment, social and governance (ESG).

From 1998 through January 2001, Michaels served as the Department of Energy's Assistant Secretary for Environment, Safety and Health.  In this position, he had primary responsibility for protecting the health and safety of workers, the neighboring communities and the environment surrounding the nation's nuclear weapons facilities. Michaels was the chief architect of the historic initiative to compensate workers in the nuclear weapons complex who developed cancer or other diseases following exposure to radiation, beryllium and other hazards. Since its enactment in 2000, The Energy Employees Occupational Illness Compensation Program has provided more than $20 billion in benefits to sick workers and their families. He also oversaw promulgation of two major public rules: Chronic Beryllium Disease Prevention and Nuclear Safety Management.

Throughout his career, Michaels has focused on the health of disadvantaged communities and the impact of infectious diseases on underserved populations.  He founded and directed the Epidemiology Unit of the Montefiore-Rikers Island Health Service, the first such unit in a jail in the United States, conducting studies on tuberculosis, sexually-transmitted diseases, drug abuse, mental health, homelessness and HIV.  In the early 1990s, Michaels developed a widely-cited mathematical model estimating the number of children and adolescents orphaned by HIV/AIDS.


Michaels received the American Association for the Advancement of Science's Scientific Freedom and Responsibility Award for his work on behalf of nuclear weapons workers and for his advocacy for scientific integrity. He is also the recipient of the American Public Health Association's David P. Rall Award for Advocacy in Public Health, the John P. McGovern Science and Society Award given by Sigma Xi, the Scientific Research Society, and the American Conference of Governmental Industrial Hygienists' William D. Wagner Award.


Michaels is a graduate of the City College of New York and holds an MPH (Master of Public Health) and PhD from Columbia University.

Michaels can be contacted at Dr.David.Michaels [at]​

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