You will still need to see your primary care doctor
are specially trained to deal with problems involving the heart. In addition to managing your heart condition and any medications specific to your heart condition, they also may perform some basic primary care functions if they are related to the heart (such as checking and treating high cholesterol).
However, there are numerous other functions that a primary care doctor performs that a cardiologist will not. These include annual complete physical examinations, maintaining vaccinations up to date, screening for cancer and other health problems, dealing with acute illnesses, and many other things.
Ideally, you should maintain followup with both your cardiologist and your primary care doctor. Usually they will be staying in contact with each other as well, to make sure that your care is well coordinated and of high quality.
If you have any concerns or questions about how each one of your personal physicians will interact with each other and what specifically the responsibilities of each one will be, the best thing to do would be to sit down and talk with them each and have them clarify for you what they see their role in your overall health plan to be.