Insurance Coverage

Health insurance is the primary vehicle for obtaining access to medical care and for reimbursing the providers who deliver it. CHCF California Health Care Almanac reports analyze health coverage trends, looking at California health insurers, employer-sponsored coverage, as well as public programs, while tracking data on the state’s uninsured residents.

December 2019 Edition — California Health Insurance Enrollment

Katherine Wilson

Coverage Trends

In 2018, California health insurers covered 32.8 million enrollees. This quick reference guide shows enrollment by regulator, market, and insurer. Data files are also available to download.

2019 Edition — California Employer Health Benefits

Coverage Trends

Workers who have health insurance through their employer bear a portion of the costs for their health care. This quick reference guide presents data from the 2018 California Employer Health Benefits Survey.

2019 Edition — California Health Insurers

Katherine Wilson

Coverage Trends, Medi-Cal

California Health Insurers: Large Insurers Remain on Top provides a snapshot of the insurance market in California at the end of 2017. This Almanac report looks at market share, enrollment, financial performance, and consumer satisfaction.

Medical Loss Ratio Resources

Katherine Wilson

Coverage Trends

The medical loss ratio (MLR) is the percentage of premium that health insurers spend on medical care and quality improvement activities. These resources include the most recent MLR database with data from 2012 to 2018, as well as documents that describe the MLR and how to use the database.

2019 Edition — California’s County-Based Health Plans

Katherine Wilson

Coverage Trends

The state's county-based health plans are public entities organized through one or more counties to ensure that Medi-Cal enrollees, and in some cases county employees and Covered California enrollees, receive comprehensive care. Where are these plans and who do they cover? How have they changed between 2012 and 2018?

2019 Edition — Medi-Cal Facts and Figures

Len Finocchio, Matthew Newman, Eunice Roh, Blue Sky Consulting Group

Medi-Cal, Coverage Trends

Medi-Cal, California’s Medicaid program, is the state’s health insurance program for Californians with low incomes, including children, persons with disabilities, seniors, and adults with low incomes. Get the latest data on this program, which covers one in three Californians.

2018 Edition — California’s Uninsured

Coverage Trends, Expanding Health Coverage

Since the implementation of the ACA in 2014, the uninsured rate in California dropped to an all-time low of 9% in 2016. However, 2.9 million Californians remained uninsured. This Almanac report takes a look at who was uninsured in 2016.

The Private Insurance Market in California, 2015

Coverage Trends

More than half of Californians get their health insurance through private carriers. This infographic shows how the largest plans stack up in terms of enrollment and revenue.

HMO Enrollment in California: The Dynamics of Decline, 2004-2015

Katherine Wilson

Coverage Trends

In the '70s and '80s, California led the nation in HMO adoption. Over the past dozen years, however, the state's commercial HMO enrollment has fallen dramatically. Get the data on the dynamics of this decline.

Covering Kids: Children’s Health Insurance in California

Keck School of Medicine, Diringer and Associates

Compared to the nation, more of California's children have public health coverage and fewer have coverage through their parents' work. This Almanac report looks at trends in children's coverage.