Daniel Hale Williams was a general surgeon known for performing the first documented, successful pericardium surgery in the US in 1893. Born to interracial parents, he faced numerous struggles in his journey to become a physician. He later founded the first non-segregated hospital in the United States, Chicago's Provident Hospital. He also founded a nursing school for African Americans.
Denton Cooley was a heart and cardiothoracic surgeon. He is best known for performing the first implantation of a total artificial heart. He did his surgical training at the Johns Hopkins School of Medicine and later worked at Baylor College of Medicine. He founded The Texas Heart Institute and was a consultant at Texas Children's Hospital.
Cardiac surgeon Michael DeBakey pioneered many treatments of cardiovascular ailments and also invented instruments such as the roller pump, later used for open-heart surgery procedures. He was also instrumental in developing MASH units and was awarded several prestigious awards, such as the Presidential Medal of Freedom and the Congressional Gold Medal.

Cardiologist Robert Coleman Atkins lent his name to the Atkins Diet, which promotes controlled carbohydrate consumption and eventually led to him being named the 2002 Time Person of the Year. Though he initially aspired to be a comedian, he later switched his focus to medicine and joined Cornell.

Famed for her dedicated service to underserved community in Bayou La Batre, Alabama, American physician Regina Mercia Benjamin held several important positions including that of the 18th Surgeon General of the United States. Throughout her career, she worked for the disadvantaged people, focusing on preventive health measures, mortgaging her home to rebuild Bayou La Batre Health Clinic after Hurricane Katrina.


Bernadine Healy created history by becoming the first woman to serve as the director of the National Institutes of Health. Apart from being a seasoned cardiologist, she had also taught medicine at institutes such as Johns Hopkins and had been the president of the American Red Cross and other non-profits.

Renowned American cardiologist Eric Topol is the founder-director of the Scripps Research Translational Institute. He is known for his pathbreaking research on genes that can be targeted for the prevention of heart diseases. He was also one of the first to question the safety factor of the medicine Vioxx.

Born into a family of Polish immigrants, Robert Lefkowitz grew up to be a cardiologist and biochemist, and later taught at Duke University. He is best known for his research on the signal-receiving receptor molecules, such as the GPCRs, which eventually won him a Nobel Prize.
A pioneer of cross-circulation, Clarence Walton Lillehei successfully conducted cardiac surgeries by linking the circulatory systems of healthy people with those of his patients, thus eventually developing the open-heart surgery. Affectionately known as the King of Hearts, he won awards such as the Harvey Prize and the Lasker Award.

Paul Dudley White was inspired to take up medicine by his physician father and ended up graduating in medicine from Harvard. A pioneer of preventive medicine, he also contributed to the study of blood coagulation and published 700 articles. He was also a medical officer during World War I

Apart from being a qualified doctor, George A. Sheehan has also gained fame as an author of books in running. Though he followed in his father’s footsteps to become a cardiologist, he later followed his early passion of track by writing bestsellers such as Running & Being.
Adrian Kantrowitz was an American cardiac surgeon who attempted the world’s first pediatric heart transplant. Although his initial interest was in neurosurgery, he later switched to cardiac surgery. He also invented the intra-aortic balloon pump, an easy-to-use device which helped to save millions of lives.

Along with fellow cardiologist Ray H. Rosenman, Meyer Friedman identified Type-A behavior and discovered a link between Type-A people and heart disease. They noticed that the chairs used by heart patients appeared to have more worn-out upholstery, as such patients fidgeted more than others. He also penned over 500 articles on heart disease.


Popularly known as the father of exercise cardiology, Robert A. Bruce was the man behind the Bruce Protocol, a diagnostic test used to monitor heart function. He was associated with the medical school of the University of Washington and was one of the major figures of the Seattle Heart Watch program.