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Rate My Professor Gregg Semenza

Johns Hopkins University

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5.04/23/2026

A role model for academic excellence.

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About Gregg

Gregg L. Semenza is a distinguished professor in the field of Medicine at Johns Hopkins University School of Medicine, holding appointments as Professor of Genetic Medicine, Pediatrics, Oncology, Medicine, Radiation Oncology and Molecular Radiation Sciences, and Biological Chemistry. He serves as Director of the Vascular Program at the Institute for Cell Engineering and occupies the C. Michael Armstrong Professorship in Genetic Medicine. Semenza received his A.B. from Harvard University in 1978 and both M.D. and Ph.D. degrees from the University of Pennsylvania in 1984. He completed a residency in pediatrics at Duke University Medical Center followed by postdoctoral training in medical genetics at Johns Hopkins University, where he joined the faculty in 1990. His research centers on the molecular mechanisms of oxygen homeostasis, pioneering the discovery of hypoxia-inducible factor 1 (HIF-1), a basic helix-loop-helix transcription factor that orchestrates cellular adaptations to low oxygen levels by regulating genes involved in angiogenesis, erythropoiesis, glycolysis, and cell survival.