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John Ackerman Olson, Jr, MD

  • Professor of Surgery

John Ackerman Olson, Jr, MD


  • General Surgery

  • Surgical Oncology

  • Endocrine Surgery

About John Ackerman Olson, Jr, MD

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John A. Olson, Jr., MD, PhD is an Endowed Professor and Vice Chair of Surgery at The University of Maryland School of Medicine. He is a board-certified surgeon who specializes in endocrine and oncologic surgery with a focus on surgical diseases of the thyroid, parathyroid, adrenal glands and breast. Dr. Olson is a member-elect of the American Surgical Association and a member of the Halsted Society, the Society of Clinical Surgeons, the Society of University Surgeons and the Southern Surgical Association. He has been named to America's Top Doctors, Best Doctors, and US News and World Report's top 1% of doctors in his specialty in the United States.
Dr. Olson's research laboratory is funded by the National Institutes of Health to investigate the molecular pathogenesis of parathyroid tumors. He also has been co-principle investigator of clinical trials that documented the ability of aromatase inhibitors to improve surgical outcomes for women with breast cancer. His clinical research also focuses on genetic determinants of breast cancer clinical outcomes.
Dr Olson joined the faculty of the University of Maryland School of Medicine in 2012 following a 12-year tenure on the faculty of Duke University in Durham, North Carolina. Prior to working at Duke, he trained in surgical oncology at the Memorial Sloan-Kettering Cancer Center in New York, in general surgery at Washington University in St. Louis Missouri and was a Registrar of the Royal Infirmary in Edinburgh Scotland. Dr. Olson received his MD and PhD degrees from the University of Florida in Gainesville. 
Dr. Olson is married to Kimberly Hillner Olson. They have two children, Elizabeth and Jack. They reside in the Homeland community of Baltimore.

Gender: Male


  • UM Upper Chesapeake Health

  • UM St. Joseph Medical Center

  • University of Maryland Medical Center Midtown Campus

  • University of Maryland Medical Center

  • Member of UM Faculty Physicians, Inc.