Using the most recent data available, this Almanac provides an overview of mental health statewide: disease prevalence, suicide rates, supply and use of treatment providers, and mental health in the criminal justice system.

This set of quality measures focuses on behavioral health, including mental health and substance use.

California Health Insurers: Staying the Course provides a snapshot of the insurance market in California at the end of 2020. Data from the state’s two insurance regulators — the California Department of Managed Health Care and the California Department of Insurance — and other sources were used to examine market share, enrollment, financial performance, and consumer satisfaction.

California's health care system is moving toward acknowledging substance use disorders (SUDs) as chronic illnesses, yet only about 10% of people with an SUD in the last year received treatment. Substance Use in California: Prevalence and Treatment provides an overview of substance use and addiction in the state.

California’s emergency departments (EDs) provide a critical source of health care to people with acute medical conditions or who have experienced trauma or injury. EDs are expected to treat all patients regardless of their ability to pay. California Emergency Departments: A Critical Source of Care looks at the most recent data on supply, visits, and wait times, as well as trends from 2009 to 2019.

Disparities among historically marginalized groups in California occur across many demographic categories. This Almanac provides data that show how people of color face barriers in accessing health care, often receive suboptimal treatment, and are most likely to experience poor outcomes in the health care system.

Workers in California are shouldering more of the costs for their health benefits, paying both a larger share of premiums and higher deductibles and copays. California Employer Health Benefits: Are Workers Covered? presents data from the 2020 California Health Benefits Survey.

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

In 2020, California health insurers covered 33.8 million enrollees. This quick reference guide shows enrollment by regulator, market, and insurer. Data files are also available to download.

This Almanac report presents data on the providers and programs that compose California’s system for providing health care to people with low incomes.

Health Care Costs 101: US Spending Growth Outpaces Economy provides a detailed look at national health care spending in 2019, just prior to the onset of the COVID-19 pandemic.

Although the number of active physicians increased by 21% between 2006 and 2018, and exceeded the 10% population growth, many areas in California face substantial shortages of primary care providers and specialists. This Almanac report describes the state's landscape for physician services.

California's health care industry employed more than 1.7 million people in 2019. Six Almanac quick reference guides provide data on wages, education, and workplaces for selected health professions.

Nursing is the single largest health profession in the state. These quick reference guides look at supply, demographics, education, distribution, and pay for registered nurses and licensed vocational nurses.

This Almanac report describes the state’s supply and use of long-term care services, Medicare and Medi-Cal spending on services, and quality of care.

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 2019, as well as documents that describe the MLR and how to use the database.

Nearly half a million babies were born in California in 2018, representing one in eight of all births in the US. While the number of births has declined since 2000, childbirth remains the number one reason for hospitalization in the state. Maternity Care in California: A Bundle of Data provides an overview of the delivery of maternity care in California and compares the state’s performance by demographic groups, over time, and provides a comparison to national numbers.

All Californians should have access to the care they need, when they need it, at a price they can afford. Californians with low incomes often face greater barriers to care than those with higher incomes. This Almanac quick reference guide provides a look at the data provided by the 2017 California Health Interview Survey.

Many surgeries are performed in freestanding, or “same-day,” ambulatory surgery centers (ASCs), whose numbers have increased dramatically over the past 11 years. However, due to a legal decision that removed reporting requirements for ASCs in the state, little is known about the volume of procedures, type of procedures, and financial operation of the vast majority of these facilities. This report looks at the most recent data on the supply, use, quality, and finances of freestanding ASCs in California.