WILLIAM W. O'NEILL, M.D., F.A.C.C., F.S.C.A.I.

Dr. O’Neill earned his medical degree from Wayne State University School of Medicine. He completed his cardiology fellowship at the University of Michigan Hospital, and he is board certified in internal medicine and cardiovascular disease by the American Board of Internal Medicine. He is a Fellow of the American College of Cardiology and the Society for Cardiovascular Angiography and Interventions.

Dr. O’Neill has been Chief, Royal Oak Division of Cardiovascular Disease at William Beaumont Hospital, since December 1987. Under his direction, Beaumont has become one of the nation's top centers for heart catheterization, including high-risk balloon angioplasty, laser angioplasty, and multi-vessel atherectomy.

Previously, he was Director of the Cardiac Catheterization Laboratory at the University of Michigan Hospital in Ann Arbor, and Associate Professor of Medicine at the University of Michigan Medical School.

The author of more than 600 publications, Dr. O’Neill has been listed annually in The Best Doctors in America since 1993. He is a world leader in the field of interventional cardiology and in developing new techniques to diagnose and treat obstructed coronary arteries. His innovations include the mechanical rotary atherectomy technique, which uses a catheter with a rotating, diamond-tipped burr to carve away and disintegrate plaque that obstructs the arteries.