Hendrick had previously served as the Oklahoma Secretary of Health and Human Services under former Republican governor Frank Keating until that post was split into two positions under Henry.
He graduated summa cum laude from Southern Nazarene University earning his undergraduate degree in accounting.
Three years after graduating from SNU, Hendrick passed the Certified Public Accountant's examination and earned both a Master of Business Administration and a Juris Doctor degree from the University of Oklahoma.
Hendrick has also served on several national committees for legislative organizations, primarily sharing state solutions to America's health care and welfare problems.
Hundreds of thousands of Oklahomans are affected daily by more than 40 state and federal human services programs administered by his Department.
[2][3] In 2008, Children's Rights, along with Oklahoma law firms Fredric Dowart Lawyers, Seymour & Graham LLP, Day, Edwards, Propester & Christensen PC, and international firm Kaye Scholer, filed a lawsuit against Hendrick, other commissioners of the Department of Human Services, and the governor of Oklahoma.
The Complaint alleged violations of the constitutional rights of the children in the state's care by routinely placing them in unsafe, unsupervised and unstable living situations, where they were frequently subjected to further maltreatment.
He serves on the boards of the National Children's Alliance, Nazarene Theological Seminary and the American Public Human Services Association.