A local cardiologist is a physician who works with patients who have a variety of cardiovascular diseases. From stroke to coronary microvascular disease, a local cardiologist can help. A patient with a heart condition may need medication, lifestyle changes (like quitting smoking) or cardiovascular surgery. If your local family physician thinks that you would benefit from working with a local cardiologist, they may refer you to one. However, if you have a serious problem such as a heart attack or a condition that requires a bypass surgery, you may have to call 911 or see an emergency medicine provider at the hospital.