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Charles Herbert Best, physiologist, co-discoverer of insulin (born 27 Feb 1899 in West Pembroke, Maine; died 31 Marh 1978 in Toronto, ON). Best is perhaps best known for his role in the discovery of insulin, a treatment for diabetes mellitus. He was posthumously inducted into Canada’s Walk of Fame in 2021.

George Cornell Ebers, neurologist, researcher (born 24 July 1946 in Budapest, Hungary). Ebers has published extensively with more than 300 publications in peer-reviewed journals, three books, 25 book chapters, and multiple editorials to his name. He has contributed significant medical research into multiple sclerosis (MS). A former professor at Western University and the University of Oxford, Ebers was awarded the John Dystel Prize for Multiple Sclerosis Research.

Elizabeth Catherine Bagshaw, physician (born 18 October 1881 near Cannington, ON; died 5 January 1982 in Hamilton, ON). Bagshaw had a successful 70-year medical practice, specializing in family medicine and obstetrics (see Childbirth in Canada). She is perhaps best known for her work as the medical director of Canada’s first birth control clinic in Hamilton, Ontario (see History of Birth Control in Canada).

Maude Elizabeth Seymour Abbott, cardiac pathologist, physician, curator (born 18 March 1868 in St. Andrews East, QC; died 2 September 1940 in Montreal, QC). Maude Abbott is known as the author of The Atlas of Congenital Cardiac Disease (1936), a groundbreaking text in cardiac research. Though Abbott graduated in arts from McGill University (1890), she was barred from studying medicine at McGill because of her gender. Instead, she attended Bishop’s College (now Bishop’s University), earning a medical degree in 1894. As assistant curator of the McGill Medical Museum (1898), and curator (1901), she revolutionized the teaching of pathology by using the museum as an instructional tool. Abbott’s work paved the way for women in medicine and laid the foundation for modern heart surgery. (See also Women in STEM).

Irma LeVasseur, MD, first French-Canadian female doctor and founder of the Hôpital Sainte-Justine in Montreal and the Hôpital de l’Enfant-Jésus in Québec City (born 20 January 1877 in Québec, QC; died 18 January 1964 in Québec, QC.) Dr. LeVasseur was one of the very few female doctors of her era and was a pioneer in pediatric medicine. She devoted her life to sick children, founding major institutions that continued her work after her death.

Henry Norman Bethune, surgeon, inventor, political activist (born 4 March 1890 in Gravenhurst, ON; died 12 November 1939 in Huang Shiko, China). Norman Bethune was an innovative thoracic surgeon who made significant contributions in the field, including the invention or redesign of surgical instruments. He was also an early advocate of universal health care in Canada. A member of the Communist Party, Bethune volunteered during the Spanish Civil War, where he pioneered the mobile blood transfusion unit. In 1938, he travelled to China, where he became a battlefield surgeon for Chinese Communist forces under Mao Zedong. Bethune’s commitment to the welfare of soldiers and civilians during the Sino-Japanese War made him a hero in the People's Republic of China.

​Frances Oldham Kelsey, CM, pharmacologist (born 24 July 1914 in Cobble Hill, BC; died 7 August 2015 in London, ON). As an employee of the United States Food and Drug Administration (FDA), Kelsey blocked the sale of thalidomide in the United States. The drug, which had been widely prescribed in Europe and Canada, was later shown to cause severe birth defects in children whose mothers had taken the drug while pregnant. In recognition of her “exceptional judgment” and determination, Kelsey received the President’s Award for Distinguished Federal Civilian Service. Kelsey and her work have been widely lauded in the United States but are less known in Canada. She was made a Member of the Order of Canada shortly before her death.

Jean Chamberlain Froese, CM, MD, MEd, FRCSC, obstetrician, associate professor, international expert in women’s reproductive health (born 27 March 1965 in St. Thomas, ON). Chamberlain Froese is founding director of Save the Mothers and the founder and co-director of McMaster University’s International Women’s Health Program.

George Brock Chisholm, CC, CBE, ED, psychiatrist, medical administrator, soldier (born 18 May 1896 in Oakville, ON; died 4 February 1971 in Victoria, BC). Brock Chisholm earned  honours for courageous service in the First World War, including a Military Cross (MC) and Bar. He obtained his MD from the University of Toronto in 1924 and became an influential psychiatrist following training at Yale University. He introduced mental health as a component of the recruitment and management of the Canadian Army during the Second World War. He directed the army’s medical services, served in the federal government as deputy minister of health, and became the founding director-general of the World Health Organization (WHO). His vocal attacks on methods of indoctrinating children with societal myths made him a controversial public figure. He was an often provocative advocate of world peace and mental health.

Charles Lightfoot Roman, MD, CM, surgeon, author, researcher, lecturer (born 19 May 1889 in Port Elgin, ON; died 8 June 1961 in Valleyfield, QC). Charles Lightfoot Roman was one of the first Black Canadians to graduate from McGill University’s Faculty of Medicine and became a recognized expert in industrial medicine. He was also one of the first Black Canadians to enlist for service in the First World War and was the only known Black person to serve with the Canadian General Hospital No. 3 (McGill). Lightfoot Roman was also likely the first Black Grand Master of a traditional Masonic lodge.

Onyenyechukwu (Onye) Nnorom, family physician, specialist in public health and preventive medicine (born 27 February 1981 in Montreal, Quebec). Nnorom is the associate director of the residency program in public health and preventive medicine at the University of Toronto’s Dalla Lana School of Public Health. She also leads the Black health curriculum at the university’s medical school. Her work addresses the health inequities that racialized and immigrant communities face.

Alfred Schmitz Shadd, educator, physician, farmer, politician, pharmacist, editor, civic leader (born 1870 in Raleigh Township, Kent County, ON; died 1915 in Winnipeg, MB).

Bonnie Henry, provincial health officer of British Columbia (2018 to present), epidemiologist, physician (born 1965 in Charlottetown, Prince Edward Island). Dr. Bonnie Henry is best known for leading British Columbia’s response to the COVID-19 pandemic. She has also worked to eradicate polio and to contain Ebola and SARS. Henry is a family care physician and a specialist in preventative medicine. She is the first woman to serve as BC’s provincial health officer.

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Dr. Theresa Tam, BMBS, physician, Chief Public Health Officer of Canada (born 1965 in Hong Kong). Dr. Tam is Canada’s chief public health officer, the federal government’s lead public health professional. She has expertise in immunization, infectious diseases and emergency preparedness. She has served on several World Health Organization emergency committees and has been involved in international missions to combat Ebola, MERS (Middle East respiratory syndrome) and pandemic influenza. She has also worked toward the eradication of polio. Dr. Tam became widely known to Canadians through media briefings as she led the medical response to the novel coronavirus and the COVID-19 pandemic.

Jean Coutu, O.C., O.Q., pharmacist, entrepreneur and philanthropist (born 29 May 1927 in Montreal, Quebec). Jean Coutu is the founder of the Jean Coutu Group, a chain of pharmacies established in 1969 under the name Pharm-Escomptes Jean Coutu. He is also the cofounder of the Marcelle and Jean Coutu Foundation, a private charitable foundation. Jean Coutu has received many honours and awards recognizing both his career and his philanthropy.

Flordeliz (a.k.a. Gigi) Osler (née Sharma), FRCSC, senator, physician and educator (born 1968 in Winnipeg, MB). Dr. Osler is an Otolaryngology – Head and Neck surgeon (ENT) surgeon and has practiced in Winnipeg since 1998. She was the past president of the Canadian Medical Association, making her the first female surgeon and the first woman of colour to assume the role. Osler was appointed to the Canadian Senate in 2022, making her the second senator of Filipino descent and the first woman of Filipino heritage to sit in the Senate.

Dominique François Gaspard, physician and community builder (born 22 December 1884 in New Orleans, Louisiana; died 6 February 1938 in Montreal, QC). Gaspard was a respected doctor and a trailblazer in Montreal’s Black district. After serving with distinction at a field hospital during the First World War, he devoted himself to medical practice in Montreal. He also worked to create social and intellectual outlets for Black men in the city. A bilingual Catholic, he was unique in the city’s early-20th-century anglophone Protestant Black community. His story speaks of a complexity of language, ethnicity and migration not often explored in narratives of Quebec’s English-speaking and Black communities.

Robert Baird McClure, CM, OOnt, medical missionary, moderator United Church of Canada (born 23 November 1900 in Portland, OR; died 10 November 1991 in Toronto, ON). As a medical missionary, McClure provided medical care and services in numerous countries, including China, Egypt and India. He was elected a lay moderator of the United Church of Canada in 1968. McClure received numerous honours and awards in recognition of his services.