For other uses, see Killeen (disambiguation). Killeen is a city in Bell County, Texas, United States. According to the recent populations estimates, the city's population was 140,806, making it the 21st most populous city in Texas. It is the principal city of the KilleenâTempleâFort Hood Metropolitan Statistical Area.
CAQH is a non-profit alliance of health plans and trade associations, developing and leading initiatives that positively impact the business of healthcare. Consider how joining CAQH may be the right career choice for you.
Operating Rules. CAQH CORE: Operating Rules to Drive the Business of Healthcare. Established in 2005, CAQH CORE is a multi-stakeholder collaboration of more than 130 organizations âproviders, health plans, vendors, government agencies, and standard-setting bodies â developing operating rules to simplify healthcare administrative transactions.