Cardiologist 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.
came to Marshfield Clinic Health System 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,
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
He and his wife have three children. He enjoys fitness activities such as running, bicycling and basketball.