Dr. John Hayes concentrates his cardiology practice on diagnosing and treating patients with heart rhythm disturbances. “It’s a pleasure to provide people with quality care and improve their health,” he said.
He came to Marshfield Clinic in 1991, attracted by its high-quality practice, the community’s family-oriented environment and positive feedback from patients who had been referred to Mayo Clinic during his residency there.
Dr. Hayes earned his medical degree at Rush University Medical Center-Rush Medical College, Chicago. He completed his residency in internal medicine at the Mayo School of Graduate Medical Education, Rochester, Minnesota; and a fellowship in cardiology and electrophysiology at the University of Washington, Seattle.
Dr. Hayes is board-certified in internal medicine, cardiovascular disease and clinical cardiac electrophysiology, and is a Fellow of the American College of Cardiology and the Heart Rhythm Society. He also serves as a clinical associate professor at the University of Wisconsin School of Medicine and Public Health, Madison.
He and his wife have three children. He enjoys fitness activities such as running, bicycling and basketball.