HEDIS Data Submission

NCQA collects HEDIS survey results directly from health plans and PPOs through the Healthcare Organization Questionnaire (HOQ), and collects HEDIS nonsurvey data through the Interactive Data Submission System (IDSS). All HEDIS data collected by NCQA are maintained in a central database with strict controls to protect confidentiality. Click the links below for more information about the data submission process.

HEDIS data are important to researchers working to improve the health care system, and to NCQA staff seeking to improve HEDIS measures. Commercial data help calculate national performance statistics and benchmarks, and set standards for measures in NCQA's Accreditation programs. With plan permission, commercial data are also included in Quality Compass®. Health plans, purchasers, consultants and the media use Quality Compass data for comparative health plan performance analyses.

NCQA collects Medicare HEDIS data on behalf of the CMS, and collects Medicaid HEDIS data on behalf of state agencies. For its Health Plan Report Cards, NCQA also collects commercial data on behalf of some states and the U.S. Office of Personnel Management.

Data Submission Resources

IDSS Resources

IDSS Import Template and Materials 

HEDIS 2019 NCQA PLD File Requirements

HEDIS 2019 NCQA Patient Level Detail File Update


HOQ Application

For access to the HOQ application through NCQA applications online, please login to my.ncqa.org.