Dr. Geoffrey Ling MD, PhD, is a pharmacologist,  physician, co-founder and CEO of On Demand Pharmaceuticals. Clinically, he is a professor of neurology, neurosurgery, anesthesiology and critical care medicine at Johns Hopkins University and the Uniformed Services University of the Health Sciences. Dr. Ling is an attending neurocritical care physician at Johns Hopkins Hospital. He serves as the Chair of the Veterans Administration’s National Research Advisory Council.

Dr. Ling is a retired U.S. Army colonel after 21 years on active duty. He served as an intensive care physician with the 452 nd CSH (combat support hospital) in OEF-Afghanistan (2003) and 86 th CSH and 10 th CSH in OIF-Iraq (2005). Colonel Ling has had four in-theater missions as a member of the Joint Chiefs of Staff “Gray Team” to assess traumatic brain injury (TBI) care in both combat theaters (2009, 2011). The 10th CSH named him their first “Physician of the Month.” Dr. Ling was also a “requested by name” consultant to Congresswoman Gabby Gifford’s trauma team following her tragic attack.

He was the Founding Director of the Biological Technologies Office at the Defense Advanced Research Projects Agency (DARPA), where he was previously a program manager and Deputy Director of the Defense Sciences Office. He served as an Assistant Director in the Science Division of President Obama’s White House Office of Science, Technology and Policy (OSTP). His BA with honors is from Washington University in St. Louis, MD from Georgetown University (elected to AOA) and his PhD in neuropharmacology is from Cornell University. He completed his neurology residency at Walter Reed Army Medical Center, neuro critical care fellowship at Johns Hopkins and research fellowship in neuropharmacology at the Memorial Sloan Kettering Cancer Center. He is board certified in both neurology and neuro critical care. He has published more than 200 peer-reviewed articles and book chapters.