Dr. Alfredo Quiñones-Hinojosa received a medical degree from Harvard University, where he graduated cum laude. He went on to complete his residency in neurosurgery at the University of California, San Francisco, where he also completed a postdoctoral fellowship in developmental and stem cell biology.  At Johns Hopkins University in Baltimore, Maryland, Dr.  Quiñones is an Associate Professor of Neurosurgery and Oncology, Neuroscience and Cellular and Molecular Medicine. In addition to directing the Brain Tumor Surgery Program at Johns Hopkins Bayview Hospital, and the Pituitary Surgery Program at the Johns Hopkins Hospital, Dr. Quiñones leads the Brain Tumor Stem Cell Laboratory.  He focuses on the surgical treatment of primary and metastatic brain tumors, with an emphasis on motor and speech mapping during surgery as well as in the treatment of patients with pituitary and skull base tumors using transphenoidal endonasal and minimally invasive surgical approaches.

Today he is known as Dr. Q, an internationally renowned neurosurgeon and neuroscientist who leads cutting edge research to cure brain cancer.  Named as one of the 100 most influential Hispanics in 2008, Dr. Q was also selected by Popular Science magazine as one of their 6th Annual Brilliant Ten-in their search for young genius influencing the course of science.  Among his extensive publications in the medical field, Dr. Q is the lead editor for the upcoming edition of Schmidek and Sweet's Operative Neurosurgical Techniques, the world's preeminent encyclopedia of neurosurgery.

Dr. Q conducts numerous research efforts on elucidating the role of stem cells in the origin of brain tumors and the potential role stem cells can play in fighting brain cancer and regaining neurological function.  He has received R01 funding from the National Institute of Health for his work with stem cells and cancer and his awards include also grants from the Howard Hughes Medical Institute Physician-Scientist Early Career Award, the Robert Wood Johnson Foundation, an the Maryland Stem Cell Foundation.