Medical and health researchers

Harold A. Chapman

Harold A. Chapman is an American physician-scientist and Professor of Medicine at UCSF, known for research on lung injury, repair, macrophage biology, and lung epithelial progenitors.

Harold A. Sackeïm, also published as Harold Sackeim, is an American clinical psychologist who led electroconvulsive therapy research at Columbia for 30 years and is the founding editor of Brain Stimulation.

Harold Alan Pincus

Harold Alan Pincus, also published as Harold A. Pincus, is an American psychiatrist at Columbia University known for work on quality and measurement in mental health care.

Harold Dudley

Harold Ward Dudley (1887–1935) was a British biochemist who discovered the enzyme glyoxalase with Henry Dakin, prepared the first international insulin standard, and isolated the ergot alkaloid ergometrine.

Harold E. Johns

Harold E. Johns (Harold Elford Johns) was a Canadian medical physicist who led the design of one of the first cobalt-60 cancer therapy units, the "cobalt bomb", in 1951.

Harold E. Lebovitz

Harold E. Lebovitz is an American endocrinologist and diabetologist, a longtime Professor of Medicine at SUNY Downstate known for research on hormone resistance and diabetes.

Sep 17, 2026

Harold E. Varmus

Harold E. Varmus (born 1939) is an American oncologist who shared the 1989 Nobel Prize with J. Michael Bishop for discovering the cellular origin of retroviral oncogenes, and later directed NIH, Memorial Sloan Kettering, and the NCI.

Harold F. Dvorak

Harold F. Dvorak is an American pathologist and vascular biologist at Harvard Medical School who discovered VEGF, the key growth factor behind tumor angiogenesis, in 1983.

Harold Gainer

Harold (Hal) Gainer (died 2023) was an American neuroscientist who worked at NIH from 1969 to 2012, known for work on neurosecretion and posterior pituitary hormones.

Harold I. Feldman

Harold I. Feldman is an American physician-epidemiologist at the University of Pennsylvania who studies kidney disease, led national NIH-funded kidney research networks, and edits the American Journal of Kidney Diseases.

Harold J. Burstein

Harold J. Burstein is an American medical oncologist specializing in breast cancer, a professor at Harvard Medical School, and a Dana-Farber clinician known for NEJM reviews and treatment guidelines.

Harold J. Wanebo

Harold J. Wanebo was an American surgical oncologist at Roger Williams Medical Center in Rhode Island, known for linking blood tests and tumor depth to cancer prognosis.

Harold Leeming Sheehan

Harold Leeming Sheehan (1900–1988) was a British pathologist who, working from autopsies in Glasgow, showed in 1937 that postpartum hemorrhage and shock can destroy the anterior pituitary, the condition now called Sheehan's syndrome.

Harold O. Conn

Harold O. Conn (1925–2011) was an American hepatologist at Yale and the West Haven VA hospital who coined "spontaneous bacterial peritonitis" and created the West Haven criteria for hepatic encephalopathy.

Harold P. Freeman

Harold P. Freeman was an American surgical oncologist who pioneered patient navigation for poor and uninsured cancer patients, founding the first navigator program in Harlem in 1990.

Harold R. Collard

Harold R. Collard is an American pulmonologist and physician-scientist who has been Vice Chancellor for Research at the University of California, San Francisco since 2022, known for interstitial lung disease and pulmonary fibrosis research.

Harold S. Margolis

Harold S. Margolis was an American CDC medical epidemiologist who led federal viral hepatitis research and was senior author of the landmark 1999 national hepatitis C prevalence study.

Harold T. Shapiro

Harold T. Shapiro, born 1935, is a Canadian-born American economist who was president of the University of Michigan from 1980 to 1988 and Princeton's 18th president from 1988 to 2001.

Harold W. Jaffe

Harold W. Jaffe is an American physician and epidemiologist who joined the CDC's 1981 AIDS task force, led its first national case-control study, and directed its HIV center.

Harriet P. Dustan

Harriet P. Dustan, also known as Harriet Dustan, was an American internist and hypertension researcher who helped make high blood pressure a treatable disease, and who served as president of the American Heart Association.

Harriet S. Gilbert

Harriet S. Gilbert is an American hematologist whose research centered on polycythemia vera and vitamin B12-binding proteins, working at Mount Sinai and Albert Einstein College of Medicine.

Harriette Chick

Harriette Chick (1875–1977) was a British microbiologist and nutritionist who proved rickets was a deficiency disease through controlled feeding trials in Vienna, and a founder of nutrition science.

Harriette G.C. Van Spall

Harriette G.C. Van Spall is a Canadian cardiologist and clinical trialist at McMaster University whose research focuses on heart failure care, digital health equity, and inclusive trial design.

Harris Busch

Harris Busch was an American biochemist and cancer researcher who chaired pharmacology at Baylor College of Medicine from 1960 to 1998 and first observed ubiquitin attached to another protein.

Harrison Black

Harrison Black was an American thoracic surgeon at the Peter Bent Brigham Hospital and Harvard Medical School, known for early open-heart surgery and closed mitral valve surgery.

Harry A. Derow

Harry A. Derow was an American physician and kidney disease researcher at Harvard Medical School and Beth Israel Hospital in Boston, active from 1935 through the 1950s.

Harry A. Quigley

Harry A. Quigley, also known as Harry Quigley, is an American ophthalmologist who holds the Maumenee Professorship at Johns Hopkins and directs its Glaucoma Center of Excellence.

Harry B. Greenberg

Harry B. Greenberg is a virologist and physician-scientist at Stanford University School of Medicine, lead inventor of the first licensed rotavirus vaccine in 1998 and co-chair of the program behind India's Rotavac.

Harry Campbell (physician and epidemiologist)

Harry Campbell is a Scottish physician and epidemiologist at the University of Edinburgh known for the first global estimates of childhood pneumonia burden from RSV and influenza.