For the 18th year in a row, Children's Hospital Boston has been rated one of the nation's top hospitals specializing in pediatric care, according to a survey by U.S.News & World Report. Children's Hospital Boston is a 377-bed comprehensive center for pediatric health care. As one of the largest pediatric medical centers in the United States, Children's Hospital's pediatric department offer a complete range of child health care services for children from birth through 21 years of age. (Our Advanced Fetal Care Center can begin interventions at 15 weeks gestation, and in some situations we treat adults.)