An assessment of Hawaii QUEST medical plans performance using Medicaid HEDIS measures, 1996-1997.

What is Medicaid HEDIS? HEDIS (Health Plan Employer Data and Information Set) is the performance measurement system for health plans developed by the National Committee for Quality Assurance (NCQA). The NCQA is an organization which accredits health plans as well as other types of health care organizations. The number of NCQA accredited managed care plans now exceeds 330, covering three quarters of all HMO enrollees or roughly 45 million Americans. HEDIS data is collected by more than 90 percent of all health plans. Medicaid HEDIS is an adaptation of HEDIS 2.0/2.5 for use by health plans with Medicaid managed care programs. In 1997, Medicaid HEDJS was incorporated into HEDIS 3.0. Therefore, QUEST plans will report their HEDIS data for the 1998 fiscal year in HEDIS 3.0 format.