A national provider identifier (NPI) is a unique ten-digit identification number required by HIPAA for all health care providers in the United States.
Generally, the law in New Hampshire is that child support ends when the child turns 18 or graduates from high school, whichever is later. Yet, the answer to the question is not that simple. Sometimes, there may be a circumstance which can extend child support, for example if your child is disabled.
In some states, child support stops when a child is 18 or graduates from high school, in others, it stops at 21 (For more information, visit Termination of Support- Age of Majority).