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Gregg Semenza, M.D., Ph.D.

2019 Nobel Prize in Physiology or Medicine
2016 Lasker Award for Basic Medical Research

Dr. Semenza is a professor of pediatrics, radiation oncology and molecular radiation sciences, biological chemistry, medicine, and oncology at the Johns Hopkins University School of Medicine. Dr. Semenza is the C. Michael Armstrong Professor of Pediatrics and serves as the director of the vascular program at the Institute for Cell Engineering. Dr. Semenza has led the field in uncovering how cells adapt to changing oxygen levels. He is best known for his groundbreaking discovery of the HIF-1 protein, which controls genes in response to changes in oxygen availability. The finding has far-reaching implications in understanding and treating low-oxygen health conditions such as coronary artery disease and tumor growth. Dr. Semenza was awarded the 2019 Nobel Prize in Physiology or Medicine by the Royal Swedish Academy of Sciences for this groundbreaking research.

Thomas H. Marshburn, M.D.

Thomas H. Marshburn, M.D.Emergency Room Physician, NASA Astronaut, and AquanautDr. Marshburn was selected by NASA in 2004. He holds a Bachelor of Science in Physics from Davidson College, North Carolina; a Masters in Engineering Physics from the University of Virginia; a Doctorate of Medicine from Wake Forest University; and a Masters in Medical Science from the University of Texas Medical Branch. The North Carolina native is a veteran of two spaceflights, STS-127 and Expedition 34/35.Before […]

Sameer Nagda, M.D., M.B.A.

Sameer Nagda, M.D., M.B.A.2021 and 2016, United States Olympic Women’s Soccer Team – Team Physician2019 FIFA Women’s World Cup Champion, Team USA – Team PhysicianFellowship Trained Sports Medicine Surgeon – Knee, Shoulder, ElbowDr. Sameer Nagda is a Sports Medicine and shoulder specialist at the Anderson Clinic, and an Assistant Professor of Clinical Orthopaedic Surgery at Georgetown University School of Medicine. He evaluates and surgically treats problems of the knee, shoulder, and elbow. He has particular […]

Richard Sacra, M.D.

Richard Sacra, M.D.Humanitarian Physician and Ebola SurvivorDr. Sacra has served as a medical missionary in Liberia, West Africa, since 1995. His many contributions include caring for patients; training nurses, medical students and interns; leadership development; and helping to increase the hospital’s response to HIV and AIDS, including starting a counselling program for patients living with the virus. He is also helping to develop a Christian Family Practice Residency training program for Liberian doctors. Despite his […]

Pardis Sabeti, M.D., Ph.D.

Pardis Sabeti, M.D., Ph.D.Associate Professor, Harvard School of Public Health InstituteMember of the Broad Institute of Harvard and MITDr. Sabeti is a computational geneticist who has created some of the most widely used algorithms to mine genomes for instances of human adaptation and created powerful molecular tools to clarify their biology. In 2014, she was named a TIME magazine “Person of the Year” as an Ebola fighter and in 2015 was one of TIME’s 100 […]