Top CDC Adviser Joins RFK Jr’s Department of Health and Human Services

Martin Kulldorff is no longer chair of the Advisory Committee on Immunization Practices.

Martin Kulldorff speaks during a meeting of the CDC's Advisory Committee on Immunization Practices in Chamblee, Ga., on Sept. 18, 2025. Elijah Nouvelage/Getty Images

Martin Kulldorff, who was chair of the panel that advises the Centers for Disease Control and Prevention, is joining the Department of Health and Human Services (HHS) to advise Health Secretary Robert F. Kennedy Jr., officials announced on Dec. 1.

Kulldorff was appointed chief science officer of the HHS Office of the Assistant Secretary for Planning and Evaluation, HHS said. The office is the department’s think tank and provides policy advice to the secretary of health.