How many kinds of doctors are there in the US? ______.

There are two kinds of doctors in the US, family doctors and specialists. Family doctors have an office in the same area, where their patients live. They know most of the patients by name and often check the health of everyone in the family. The other type of doctors—specialists, know a great deal about special health problems, such as a heart disease, or a broken bone. It costs a lot of money to see a doctor in the US. Besides, medicines are also expensive. So, medical insurance is very important in America.