Medical and health researchers

Karl Lisch

Karl Lisch (1907–1999) was an Austrian ophthalmologist who led the eye department at the Wörgl hospital and gave his name to the Lisch nodule, an iris lesion that remains a diagnostic criterion for neurofibromatosis type 1.

Karl M. Johnson

Karl M. Johnson (died October 2023) was an American physician and virologist who isolated Machupo virus, co-identified Hantaan virus, and led the 1976 commission that named Ebola virus.

Karl Oskar Medin

Karl Oskar Medin (1847–1927) was a Swedish pediatrician and professor at the Karolinska Institutet who first described poliomyelitis as an epidemic disease, from the 1887 Stockholm outbreak.

Karl Sudhoff

Karl Sudhoff (1853–1938) was a German physician who became Germany's first professor of medical history in 1905 and founded the world's first institute for it, in Leipzig.

Karl Swedberg

Karl Swedberg is a Swedish cardiologist and Senior Professor at the University of Gothenburg who first reported survival benefits of four heart failure drug classes.

Karl Touton

Karl Touton (1858–1934) was a German dermatologist who practiced in Wiesbaden, gave his name to the Touton giant cell, and described hundreds of new Hieracium taxa.

Sep 20, 2026

Karl Tryggvason

Karl Tryggvason, born 1947, is an Icelandic medical biochemist and nephrology researcher who discovered nephrin, the gene behind congenital nephrotic syndrome, and was Professor of Medical Biochemistry at Karolinska Institutet from 1994 to 2014.

Karl Welte

Karl Welte (born 1942 in Tettnang, Germany) is a German pediatric hematologist who took G-CSF from laboratory purification to the standard treatment for severe congenital neutropenia.

Karl Wittmaack

Karl Wittmaack (1876–1972) was a German otorhinolaryngologist who founded the Pneumatisationslehre theory of temporal-bone pneumatization, assembled a collection of over 1700 temporal bones, and was twice nominated for the Nobel Prize.

Karl Y. Bilimoria

Karl Y. Bilimoria is an American surgical oncologist and health services researcher who led the FIRST Trial of resident duty hours and became chair of surgery at Indiana University in 2022.

Karl-Henrik Robèrt

Karl-Henrik Robèrt is a Swedish physician and cancer researcher who founded The Natural Step in 1989 and co-developed the Framework for Strategic Sustainable Development, a planning method built on four sustainability principles.

Karl‐Heinz Kück

Karl-Heinz Kück is a German cardiologist and electrophysiologist who led cardiology at Asklepios Klinik St. Georg in Hamburg for 25 years and the VTACH and FIRE AND ICE trials.

Karla Kerlikowske

Karla Kerlikowske is an American physician-scientist, professor at the University of California, San Francisco, known for research on mammography screening and breast cancer risk prediction.

Karlman Wasserman

Karlman Wasserman (1927–2020) was an American exercise physiologist and physician who coined the term "anaerobic threshold" and pioneered cardiopulmonary exercise testing, leading the pulmonary division at Harbor-UCLA from 1967 to 1997.

Kashmira Date

Kashmira A. Date is an American physician and epidemiologist who spent over a decade at the CDC leading cholera and typhoid vaccine work, winning a 2014 PECASE award.

Kasturi Haldar

Kasturi Haldar is an American malaria and rare-disease researcher at the University of Notre Dame who showed how the malaria parasite develops resistance to artemisinin drugs.

Sep 20, 2026

Katalin Suszták

Katalin Suszták, also written Katalin Susztak, is a Hungarian-born American physician-scientist and professor at the University of Pennsylvania known for kidney disease genetics, the first kidney cell atlas, and APOL1 research.

Sep 20, 2026

Katayoun Rezvani

Katayoun Rezvani, known professionally as Katy Rezvani, is a physician-scientist who leads allogeneic natural killer cell therapy research at MD Anderson Cancer Center in Houston, Texas.

Kate Russell Woodworth

Kate Russell Woodworth is an American medical epidemiologist and pediatrician known for containing antimicrobial-resistant organisms and for building national surveillance of health threats to pregnant women and infants.

Katherine A. Gallagher

Katherine Ann Gallagher is a vascular surgeon-scientist at the University of Michigan who studies why wounds fail to heal in diabetes, elected to the National Academy of Medicine in 2022.

Katherine A. Siminovitch

Katherine A. Siminovitch, also known as Katherine Siminovitch, is a Canadian rheumatologist at the University of Toronto who identified over 100 gene variants contributing to autoimmune disease risk.

Katherine Iverson

Katherine M. Iverson is an American clinical research psychologist at VA Boston's National Center for PTSD who studies intimate partner violence screening and treatment for veterans.

Katherine Jones (molecular biologist)

Katherine A. Jones is a molecular biologist and Professor Emerita at the Salk Institute, known for identifying P-TEFb, the elongation factor HIV Tat recruits, and for APC's repression of Wnt genes in colon cancer.

Katherine K. Matthay

Katherine K. Matthay is a pediatric hematologist-oncologist at UCSF who led the landmark CCG-3891 neuroblastoma trial, co-authored the INRG classification, and founded the NANT consortium.

Katherine L. O'Brien

Katherine L. O'Brien, also published as Kate O'Brien, is a Canadian-born pediatric infectious disease physician and vaccinologist directing immunization at the World Health Organization since 2019.

Katherine M. Detre

Katherine M. Detre, born Katherine Maria Drechsler (1926–2006), was a Hungarian-born American epidemiologist at the University of Pittsburgh who co-founded its Epidemiology Data Center and led the BARI coronary trials.

Katherine M. Flegal

Katherine M. Flegal, also published as K M Flegal, is an American epidemiologist who spent nearly 30 years at the CDC's National Center for Health Statistics studying obesity.

Kathleen A. Dracup

Kathleen A. Dracup is an American cardiovascular nursing scientist and Dean Emerita of the UCSF School of Nursing, known for research on heart disease patients and their families.

Kathleen I. Pritchard

Kathleen I. Pritchard is a Canadian medical oncologist and clinical trials scientist at Sunnybrook in Toronto who chaired Canada's breast cancer trials group from 1984 to 2007.