Most cardiologists do not necessarily make as much money as a heart surgeon, but cardiologists truly can be more valuable in my estimation due to the fact that they can check problems before they manifest into something much larger. I for one would rather visit a cardiologist any day as opposed to having to visit a heart surgeon.
Cardiologists and heart surgeons of course end up working with the same patients.
Occasionally issues can arise such as contracting cancer around the heart. Because of these issues a cardiologist may refer you to a good oncologist to monitor the situation as well. A good oncology clinic is located in Huntsville, Alabama. Parker Griffith, a current Congressman from Alabama use to practice oncology there. Cardiologists also are important in monitoring the heart of a heart patient after a surgery, just to make sure they don't feel any lightheaded spells or grow tired easily, have shortness of breathe for an extended period of time. Obviously most heart patients are going to feel these symptoms for a certain period of time, otherwise they would not be coming into the doctor's office to begin with. Cardiologists want to make sure that people are around in order to see their children and their grandchildren grow up.
Cardiologists also have to carry some malpractice insurance in case they misdiagnose something in their line of work and then someone may file a lawsuit against them because of it. They don't have to carry as much malpractice insurance as a surgeon typically does however. Cardiologists even tend to win important awards when they end up inventing something cool like a new heart monitor or a new type of drug to help people cope with the heart issues that they may face. Often times drug companies like Pfizer would write a big, fat check to a cardiologist who is able to develop the next wonder drug. If a cardiologist is able to come forward with that kind of information they deserve a big pay day.
Cardiologists are big on making sure you develop a good exercise routine. I would guess that a cardiologist would be one of the biggest proponents of gym class and recess for young people in order to keep those hearts young and active. A cardiologist would want to monitor your heart rate as you are exercising on some sort of bike or treadmill to see how much your heart rate increases or decreases. If there is too much of a fluctuation involved they may want to bring you in for further tests. If those further tests bring up some other problems, that could cause you to make regular visits to a cardiologist. The cardiologist is hopefully something that your insurance would cover if you do happen to be lucky enough to have affordable health insurance.