Dr. Denis P. O'Brien, M.D., is an accomplished orthopedic surgeon based in Olney, Maryland, with over 40 years of medical experience. He has focused his practice on less invasive joint replacement techniques, notably the anterior approach total hip replacement, demonstrating a commitment to improving patient outcomes. Dr. O'Brien completed his medical education at Georgetown University School of Medicine and has served in the U.S. Navy, which adds to his extensive background in the field....