This Issue Brief presents analyses of data available through the HEDIS by Geography tool, accessible at https://hbg.iha.org. The tool allows users to display and compare measures of both quality of care and use of health care resources throughout California. Rates can be displayed by product line and geographic area -- from as granular as a ZIP code to as extensive as statewide averages. Two main themes are highlighted in this brief:
- Health plan products that rely primarily on integrated care delivery networks, such as HMOs and Medicare Advantage, generally have higher quality scores without using more resources.
- Resource use and health care quality vary widely throughout the state.