Dr. Thomas H. Johnson is a cardiologist in Maplewood, Minnesota and is affiliated with multiple hospitals in the area, including M Health Fairview University of Minnesota Medical Center and M Health Fairview St. John's Hospital. He received his medical degree from University of Minnesota Medical School and has been in practice for more than 20 years. Dr. Thomas H. Johnson has expertise in treating coronary artery disease, hypertension & high blood pressure, pulmonary heart disease, among other conditions - see all areas of expertise. Dr. Thomas H. Johnson accepts Medicare, Aetna, Blue Cross, United Healthcare - see other insurance plans accepted.