Famous 20th Century Physicians

Widely regarded as the father of analytical psychology, Carl Jung is one of the most important contributors to symbolization and dream analysis. The concepts of socionics and a popular psychometric instrument called Myers-Briggs Type Indicator (MBTI) were developed from Jung's theory. Apart from working as a psychiatrist and psychoanalyst, Carl Jung was also an artist, craftsman, builder, and prolific writer.

Alexander Fleming was a Scottish microbiologist and physician. He is credited with discovering penicillin, the world's first effective antibiotic substance; a discovery that changed the course of history. He also discovered lysozyme, an antimicrobial enzyme which forms part of the innate immune system. In 1999, Fleming was named in Time magazine's 100 Most Important People of the 20th century list.

If the world is successful in its fight against polio, the credit goes to American virologist Jonas Salk who developed a vaccine for the disease. Described as a “miracle worker”, his concerns for humanity were reflected in the fact that he did not claim a patent for the vaccine. He founded the Salk Institute for Biological Studies, based in California.

James Watson is a geneticist, molecular biologist, and zoologist. He is credited with co-authoring the academic paper that propounded the double helix structure of nucleic acids such as DNA for which he was awarded the Nobel Prize in 1962. In 1977, he was honored with the Presidential Medal of Freedom. In 1997, he was awarded the National Medal of Science.

Nobel Prize-winning British biophysicist Francis Crick is best known for his ground-breaking work to determine the structure of the DNA, along with James Watson, Maurice Wilkins, and Rosalind Franklin. He taught at various institutes, such as the Salk Institute, and was also awarded the Order of Merit.

Born into a middle-class African-American family, Charles R. Drew initially excelled in football and track and field, and ended up earning athletic scholarships to fund his studies. He grew up to be a renowned surgeon and revolutionized the storage of blood plasma in blood banks.

British surgeon Joseph Lister was a pioneer of antiseptic medicine usage and made a huge contribution to the development of preventive medicine for bacterial infection. His achievements have been honored by many, such as the makers of Listerine antiseptic and mouthwash, who named their product after him.

Neurosurgeon Ben Carson is credited with many pioneering neurosurgical procedures. He became a Library of Congress “Living Legend” and received the Presidential Medal of Freedom. He later contested in the 2016 presidential primaries, has authored numerous books, was a Secretary of Housing and Urban Development, and earned 60 honorary doctorates.

Regarded as the father of psychoanalysis, Sigmund Freud was a neurologist. Despite suffering criticism, psychoanalysis remains influential in the fields of psychology and psychiatry; such is the influence Freud has on humanities. Scholars believe that Freud is one of the most influential personalities of the 20th century and that his impact is comparable to that of Marxism and Darwinism.

American paediatrician Benjamin Spock was the first paediatrician who studied psychoanalysis to comprehend needs of children and family dynamics. He penned Baby and Child Care, a best-seller book of the twentieth-century. His concepts of child-rearing influenced generations of parents. Spock was also an Olympic gold-medallist in rowing and ran during the 1972 United States presidential election as People's Party nominee.

Vivien Theodore Thomas was laboratory supervisor who never went to college; yet he rose above poverty and racism to develop a procedure for treating cyanotic heart disease. Initially billed as janitor, he began his career as assistant to surgeon Alfred Blalock first at Nashville University and later at Johns Hopkins, and in time discovered the life-saving technique, eventually becoming a teacher of operative techniques.

Nigerian-American physician, forensic-pathologist and neuropathologist Bennet Omalu is most-noted for discovering chronic traumatic encephalopathy (CTE) in American football players. He was serving at Allegheny County coroner's office in Pittsburgh at that time. He presently serves as President and Medical Director of Bennet Omalu Pathology, chief medical examiner for San Joaquin County, and as professor at the University of California, Davis.

Nobel Prize-winning Australian physician Barry Marshall, along with his colleague Robin Warren, proved that gastric ulcers were caused by the bacteria Helicobacter pylori and not by spicy food and other causes as previously believed. Their research made it possible to cure such ulcers by treating the bacteria with antibiotics.

Former NASA astronaut Mae Jemison became the first Black woman to fly into space, as a mission specialist on the Space Shuttle Endeavour. A qualified physician, she has served as a Peace Corps doctor, too. She has written several books and established a non-profit and a tech research organization.

Ron Paul is a physician, author, and retired politician who has played an important role in promoting libertarian vision by delivering speeches on American college campuses. A doctor by profession, Ron Paul served in the U.S. Air Force as a flight surgeon from 1963 to 1968. His life and career inspired the 2012 film Ron Paul Uprising.

Johns Hopkins Hospital co-founder William Osler was also an avid historian. He redefined medical education with his emphasis on clinical experience and his book The Principles and Practice of Medicine. Born to a missionary father in Canada, he was to follow in his father’s footsteps but decided to study medicine instead.

Patch Adams is an American physician, clown, comedian, author, and social activist. Credited with founding the Gesundheit! Institute, Adams advocates an alternative health care model. He also organizes volunteers who travel to various countries every year in order to bring a smile to the faces of patients, orphans, and other people.

Austrian psychiatrist Viktor Frankl founded logotherapy. He also authored several books, most notably his bestselling autobiographical depiction of his ordeal at various Nazi concentration camps, Man's Search for Meaning. He had lost his parents, brother, and wife in the Holocaust. He later won honors such as the Oskar Pfister Award.

Jack Kevorkian was a pathologist who believed that euthanasia or mercy killing of terminally ill patients was necessary. He later claimed to have helped 130 patients die and earned the nickname “Dr. Death.” He was later convicted of murder for his role in the voluntary euthanasia of a patient.

Frederick Banting was a Canadian medical scientist and physician. In 1923, Banting and Scottish biochemist John James Rickard Macleod received the Nobel Prize in Medicine for the discovery of insulin and its therapeutic potential. Aged 32 at that time, Banting remains the youngest Nobel laureate in physiology or medicine. He was knighted by King George V in 1934.

Maria Montessori was an Italian educator and physician best known for developing the Montessori method of education, a student-friendly method, which is being used in several public and private schools around the world. In 2020, she was nominated by Time magazine as one of their Top 100 Women of the year.

Albert Schweitzer was an Alsatian polymath who won the Nobel Peace Prize in 1952 for his philosophical work, Reverence for Life. He is credited with founding the Albert Schweitzer Hospital, which was a direct result of his philosophical expression. Schweitzer is also credited with influencing the Organ reform movement, which began in the mid-20th-century.

Sam Sheppard went from being a popular doctor at the Bay View Hospital to a murder suspect. After spending a decade behind bars, convicted of bludgeoning his wife, Marilyn Reese, to death in their bedroom and sentenced to life, he was eventually acquitted due to a lack of sufficient evidence.

Osamu Tezuka was a Japanese manga artist, cartoonist, animator, and film director. He revolutionized the manga genre in Japan and was lovingly called  "the Godfather of Manga". A prolific artist, he created works for both children and adult-oriented projects. He was the recipient of several awards, including the Winsor McCay Award and the Japan Cartoonists Association Award. 

François Duvalier was a Haitian politician. From 1957 to 1971, he served as the president of Haiti. Over the course of his political career, Duvalier's regime became despotic and totalitarian. In 1964, Duvalier declared himself President for Life and remained in power until his death. Since his demise, several books have been written about his rule in Haiti. 

Erich Fromm was a German social psychologist, psychoanalyst, sociologist, and socialist. A German Jew, he fled the Nazi regime and settled in the United States. He was a co-founder of  The William Alanson White Institute and was associated with the Frankfurt School of critical theory. He is best remembered for authoring the book Escape from Freedom.

Former physician Andrew Wakefield had his name removed from the medical register due to his association with a fraudulent 1998 study that claimed there was a link between autism and the vaccine for measles, mumps, and rubella. An anti-vaccination activist, he also taught at the Royal Free and University College.

Born in New Zealand, to a doctor father from Dublin, Maurice grew up to be a Nobel Prize-winning biophysicist. His X-ray diffraction studies of DNA helped James D. Watson and Francis Crick, his fellow Nobel laureates, ascertain the DNA structure. He was also part of the Manhattan Project.

Alfred Kinsey was an American biologist, sexologist, and professor of zoology and entomology. He is credited with founding the Indiana University's Institute for Sex Research in 1947. Kinsey's research on human sexuality and his other works have influenced cultural and social values in the USA as well as internationally. In 2012, Kinsey was inducted into Chicago's Legacy Walk.

René Gerónimo Favaloro was an Argentine educator and cardiac surgeon. He is best remembered for his work on coronary artery bypass surgery. Favaloro is credited with establishing the Favaloro Foundation in an attempt to emulate Cleveland Clinic. He is also credited with founding the Basic Investigation Laboratory, which was financed with his own money.

Frantz Fanon was a French-West Indian born in Martinique, a former French colony. A skilled psychiatrist and physician, he realized the impact of colonialism on the human mind while treating French soldiers and Algerians. The author of books such as The Wretched of the Earth, Fanon supported the Algerian independence movement.

Maria Belon is a Spanish motivational speaker and physician. She achieved popularity after surviving the Indian Ocean earthquake and tsunami in 2004. Belón was badly injured and nearly died. The story inspired the 2012 disaster drama film The Impossible, in which Maria Belon was played by Naomi Watts. Belon has also appeared in many TV shows.

Robert Leckie was an American writer and US Marine. He is best remembered for authoring sports books, children's books, autobiographies, fiction books, and books about the history of the United States military. One of Robert Leckie's memoirs, Helmet for My Pillow, became the basis for the popular war drama miniseries The Pacific.

A reputed Polish doctor, Henryk Goldszmit was better known by his pseudonym, Janusz Korczak, which he used to write several children’s books. Apart from working as a pediatrician and a military doctor, he also owned a Jewish orphanage and stayed with the children while the Germans deported him and other staff to Treblinka.