Kathryn Hall is the new leader of Cambridge Public Health. (Photo: Cambridge Health Alliance)

A new chief public health officer for Cambridge began work Monday with a public announcement by the Cambridge Health Alliance, the health system that runs the municipal department. The hiring of chief Kathryn Hall was announced internally a month ago.

Hall replaces Derrick Neal, who was removed from office in March. The leader bridging the period between Neal and Hall was Tracy Rose-Tynes, brought back temporarily from a 2025 retirement as senior director of clinical services with Public Health and the Health Alliance. 

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Hall brings more than two decades of progressive leadership spanning public health, academic medicine, research and biotechnology, CHA spokesperson David Cecere said. From 2021 to 2024, she served as deputy commissioner of population health and health equity at the Boston Public Health Commission, where she helped guide communicable disease strategy, Covid response and health equity programming.

Most recently, Hall was senior vice president for research and programs at the New York Academy of Medicine. She is also a part-time assistant professor in preventive medicine at Brigham and Women’s Hospital and Harvard Medical School.

She is “committed to data-driven, equity-centered public health strategy,” said Assaad Sayah, CHA’s chief executive and commissioner of public health for Cambridge. “She is exceptionally equipped to guide the CPHD across its core priorities, including community health and wellness, communicable disease prevention, emergency preparedness, environmental health, epidemiology, regulatory enforcement and school health.”

As first reported in September, Hall has a background at Harvard and in the biotech industry in Cambridge. She spent a decade in biotech focused on drug discovery and development before joining the fellowship in integrative medicine at Beth Israel Deaconess Medical Center. She holds a doctorate in microbiology and molecular genetics from Harvard University, and master’s degrees from the Harvard T.H. Chan School of Public Health and from Emerson College, the latter for visual media arts.

“I’ve had deep ties to Cambridge for most of my career, and returning to serve this community feels like coming home,” Hall said.

The Cambridge Public Health Department is budgeted at $9 million annually, with a staff of 57, for the current fiscal year. The Health Alliance serves Cambridge, Somerville and Boston’s Metro North communities.