County-Level Physician Supply and Preventable Hospitalizations in California

California county data contains hospitalization rates for seven prevention quality indicators and supply rates for physicians treating those conditions. Anticipated retirement of practicing physician specialists is also provided by county. Rates are calculated per 100,000 population.

Use Cases

• Analyze the relationship between physician supply rates and hospitalization rates for specific Prevention Quality Indicators like COPD or diabetes.
• Model the potential impact of anticipated physician retirement on county-level hospitalization rates for conditions such as heart failure or asthma.
• Identify geographic disparities in access to outpatient care by comparing PQI hospitalization rates across California counties.

Strengths

• Data covers seven specific Prevention Quality Indicators, including COPD, hypertension, and diabetes.
• Rates are standardized per 100,000 population for cross-county comparison.
• Includes a forward-looking metric on anticipated physician retirement by county.
• Published by the State of California's Department of Health Care Access and Information.

Limitations

• The underlying sample size of hospitalizations or physician counts per county is unknown.
• Data may reflect geographic bias, being limited to California counties only.
• The specific calculation methodology for anticipated retirement is not detailed.

Provenance

Source

State of California, Department of Health Care Access and Information (HCAI).

Collection Method

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Time Range

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Freshness

Last updated in November 2025.

Geography

California, United States (county-level).