The single largest health insurer for children is this "aid" program set up by the U.S. government in 1965
In 2015, Medicare 
provided health insurance for over 55 million46 million people age 65 and .... 
administers Medicare, Medicaid, the Children's Health Insurance Program (CHIP)
, the Clinical... [DOC] [TLE] Health Insurance for Children - Princeton University [PAR] Expansions of the program during the 1980s and 1990s made Medicaid the 
largest single insurance provider for children in the United.