Biography:

Tatum O’Sullivan, RN, BSN, MHSA, CPHRM, DFASHRM, CPPS, was the 2024 President of the American Society for Healthcare Risk Management. She is the Healthcare Loss Control Expert for Munich Re Specialty – North America. She was recently the Director of Safety, Risk, and Patient Family Relations at Mass General Brigham Medical Group in Massachusetts.

She is a Certified Professional in Health Care Risk Management (CPHRM) and Distinguished Fellow of the American Society for Health Care Risk Management (DFASHRM). Tatum is a dedicated member of the American Society for Health Care Risk Management (ASHRM), where she has served and chaired committees. Prior to serving as President, she was served as an Advisory Board member from 2019-2021.

She has been on the Board of the Northern New England chapter affiliated with ASHRM serving as Secretary and later as President in 2014 and 2017. She also served on the Board of the Massachusetts chapter as Secretary and as President in 2018. She has chaired and volunteered on various committees for the local chapters. In 2016, Tatum received the Paulette L. Gagnon Award from the Northern New England Society for Healthcare Risk Management. This is the chapter’s highest honor and goes to members who have distinguished themselves in promoting the chapter, the profession of risk management, and in the development of other risk professionals. 

Tatum has presented on risk management and patient safety strategies locally, nationally, and internationally. She was a contributor on a publication for Health Care Management Review in 2017 and is a co-author for several ASHRM publications. Tatum was a contributor to the 2025 ASHRM white paper, Strategies for Promoting Risk Professional Resilience. She is a registered nurse and holds a Bachelor of Science in Nursing and a Master in Health Services Administration.