Medical and health researchers

Joshua A. Boyce

Joshua A. Boyce is an American allergist-immunologist, chief of allergy and clinical immunology at Brigham and Women's Hospital and Harvard professor who chaired NIH food allergy guidelines.

Joshua A. Salomon

Joshua A. Salomon is a health policy researcher and Professor of Health Policy at Stanford School of Medicine, directing the Prevention Policy Modeling Lab for infectious disease modeling.

Joshua C. Denny

Joshua C. Denny is an American physician and biomedical informatics researcher known for developing PheWAS and serving as CEO of the NIH's All of Us Research Program since 2020.

Joshua Hare

Joshua M. Hare is an American cardiologist and stem cell therapy researcher at the University of Miami, known for trials of mesenchymal stem cells in heart disease and Alzheimer's.

Joshua N. Goldstein is an American emergency physician and clinical researcher at Massachusetts General Hospital and Harvard Medical School, known for trials in stroke, seizures, and anticoagulation reversal.

Joshua Rabinowitz

Joshua D. Rabinowitz is a Princeton chemistry professor and director of the Ludwig Princeton Branch, known for metabolomics, isotope-tracing methods, and cancer metabolism research, including the oncometabolite 2-hydroxyglutarate.

Joshua Starmer

Joshua Starmer is the founder and CEO of StatQuest, a YouTube channel explaining statistics, data science, and machine learning with pictures, toy datasets, and songs.

Sep 17, 2026

Joshua Yarrow

Joshua F. Yarrow is an American rehabilitation scientist studying sex-steroid hormones, bone, and muscle after spinal cord injury; he directs the Eastern Colorado GRECC and won a 2014 PECASE award.

Jost B. Jonas

Jost B. Jonas, born 1958, is a German ophthalmologist who was Professor and Chairman of Ophthalmology at Heidelberg University's Mannheim faculty, known for glaucoma research and the Beijing Eye Study.

Josué de Castro

Josué de Castro (1908–1973) was a Brazilian physician and federal deputy who argued hunger is socially produced, wrote The Geography of Hunger, and chaired the FAO Council.

Joy E Lawn

Joy E. Lawn is a Ugandan-born, British-trained pediatrician and perinatal epidemiologist at the London School of Hygiene & Tropical Medicine, known for global neonatal death and stillbirth research.

Joyce Bischoff

Joyce Bischoff is a vascular biologist and Professor of Surgery at Harvard Medical School whose lab identified the stem cell that gives rise to infantile hemangioma.

Joyce M. Slingerland

Joyce M. Slingerland, also known as Joyce Slingerland, is a Canadian-trained physician-scientist credited with discovering the cell-cycle inhibitor p27, and has been Professor of Oncology at Georgetown University since 2020.

Józef Brudziński

Józef Brudziński (1874–1917) was a Polish pediatrician and neurologist remembered as the father of Polish pediatrics, who described four signs, including the neck sign, for detecting meningitis.

József Baló

József Baló (1895–1979) was a Hungarian physician, pathologist, and oncologist who described Baló's disease, a rare demyelinating brain disease, in 1928, directed pathology institutes at Szeged and Budapest, and co-discovered pancreatic elastase.

József Marek

József Marek (1868–1952) was a Hungarian veterinary pathologist and professor at the Royal Hungarian Veterinary College whose 1907 paper on poultry polyneuritis gave its name to Marek's disease.

Juan C. Celedón

Juan C. Celedón (J.C. Celedon) is an American pulmonary physician-scientist at the University of Pittsburgh who led the VDKA vitamin D asthma trial and was 2020 American Thoracic Society president.

Juan Carlos Ayus

Juan Carlos Ayus, also published as Juan C. Ayus, is an Argentine-born nephrologist at UC Irvine known for work on hyponatremic encephalopathy and rapid correction of hyponatremia.

Juan Carlos García‐Pagán

Juan Carlos García-Pagán is a Spanish hepatologist who heads the Hepatic Hemodynamic Section at the Hospital Clínic de Barcelona and led a landmark 2010 trial of early TIPS for variceal bleeding.

Juan J. Badimón

Juan J. Badimon is a Spanish-born pharmacologist and Professor of Medicine at Mount Sinai in New York, known for work on HDL cholesterol, high-risk plaque, and empagliflozin in heart failure.

Juan Oliver (nephrologist)

Juan A. Oliver is a nephrologist and physician-scientist at Columbia University in New York, known for his work on vasodilatory shock and kidney stem cells.

Juan P. Casas

Juan P. Casas, also known as Juan Pablo Casas, is a Colombian-trained genetic epidemiologist at UCL and LSHTM who uses Mendelian randomisation to test cardiovascular causes.

Juan P. Frías

Juan P. Frías (Juan Pablo Frías) is a Chilean-born endocrinologist and clinical trialist who has led more than 250 diabetes studies and directs the Los Angeles Institute for Metabolic Research.

Juan Rodés

Juan Rodés was a Spanish hepatologist who founded the Liver Unit of the Hospital Clínic de Barcelona in 1968, building it into one of Europe's leading liver centers.

Juan W. Valle

Juan W. Valle is a Peruvian-born, British-based medical oncologist and Professor Emeritus at the University of Manchester, known for the ABC-02 and TOPAZ-1 trials in biliary tract cancer.

Juan‐R. Malagelada

Juan-R. Malagelada (Joan Ramon Malagelada Benaprés) is a Spanish gastroenterologist known for the 2003 Lancet review "Gut flora in health and disease" and studies of gastric motility.

Judd E. Hollander

Judd E. Hollander, also known as Judd Hollander, is an American emergency medicine physician and researcher at Thomas Jefferson University known for chest pain research.

Judith A. Ferry

Judith A. Ferry is an American diagnostic hematopathologist who directs hematopathology at Massachusetts General Hospital, holds a Harvard pathology chair, wrote the textbook Extranodal Lymphomas, and helped shape the WHO lymphoma classification.