![Howard Frumkin](https://www.hsph.harvard.edu/c-change/wp-content/uploads/sites/2343/2020/01/Howard_Frumkin-sq.jpg)
Howard Frumkin MD, DrPH, MPH
Member, Board of Advisors
An internist, environmental and occupational medicine specialist, and epidemiologist, who has worked in academia and public service.![Dr. J. Nadine Gracia](https://www.hsph.harvard.edu/c-change/wp-content/uploads/sites/2343/2022/01/J.-Nadine-Gracia-Photo-450x450.jpg)
J. Nadine Gracia MD, MSCE
Member, Board of Advisors
Dr. Gracia is a national health equity leader with extensive leadership and management experience in federal government, the nonprofit sector, academia, and professional associations.![Howard Koh](https://www.hsph.harvard.edu/c-change/wp-content/uploads/sites/2343/2021/01/Howard-Koh-sq.jpg)
Howard Koh MD, MPH
Member, Board of Advisors
Dr. Koh is the former U.S. Assistant Secretary for Health and now advances health leadership education and training across Harvard.![Jeff Nesbit](https://www.hsph.harvard.edu/c-change/wp-content/uploads/sites/2343/2020/01/Jeff-Nesbit3-sq-450x450.jpg)