A pediatrician is a physician who specializes in the diagnosis and treatment of conditions that affect the health of children. The selection of a pediatrician is an important decision that each and every parent is tasked with making. Therefore, prior to making a decision regarding a pediatrician for your child, you should give careful consideration to a number of different factors and conduct an appropriate amount of research. One of the best things you can do for your children's health is to select a pediatrician for them and establish a close relationship with the doctor.