If you have found a good doctor that you like, it can be helpful to see this person on a regular basis for all of the above reasons, as well as it can be beneficial to have a relationship with a primary care physician. The more familiar a busy doctor is with you as a person, as well as a with you as a patient with a medical history, they may be able to better understand you and your needs if they have more of a repore and familiarity with you.