Donald S. Baim was the Section Chief of Interventional Cardiology at the Beth Israel Hospital, a Harvard affiliate hopsital. He was an international leader in interventional cardiology. He was involved in the design and initial clinical assessment of coronary stents and directional coronary atherectomy. He mentored numerous generations of fellows who went on to become leading interventional cardiologists. He was one of the founders of the Cardiovascular Data Analysis Center (CDAC) that then became the Harvard Clinical Research Institute (HCRI). In 2016, HCRI was renamed the Baim Institute for Clinical Research in his honor. His legacy lives on through the achievements of the Baim Institute.