120.7 per 100K
828:1 · 47,508 providers
US 119.6
Medicare-enrolled: 50% (CMS Doctors & Clinicians, August 2026)
Ltrl Health Data
California
Healthcare providers per resident, insurance coverage and preventive care, compared with the US.
Population 39,355,309 (Census, 2025)Provider data: NPPES, September 202658 counties
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Healthcare providers
Dentists
101.0 per 100K
990:1 · 39,739 providers
US 80.5
Medicare-enrolled: 1% (CMS Doctors & Clinicians, August 2026)
Mental health providers
540.2 per 100K
185:1 · 212,614 providers
US 396.3
Medicare-enrolled: 9% (CMS Doctors & Clinicians, August 2026)
Other primary care providers
113.6 per 100K
880:1 · 44,718 providers
US 169.7
Medicare-enrolled: 42% (CMS Doctors & Clinicians, August 2026)
Primary care physicians
| Measure | Providers | Per 100,000 | Residents per provider | US | Trend |
|---|---|---|---|---|---|
| Dentists Medicare-enrolled: 1% (CMS Doctors & Clinicians, August 2026) | 39,739 | 101.0 | 990:1 | 80.5 | |
| Mental health providers Medicare-enrolled: 9% (CMS Doctors & Clinicians, August 2026) | 212,614 | 540.2 | 185:1 | 396.3 | |
| Other primary care providers Medicare-enrolled: 42% (CMS Doctors & Clinicians, August 2026) | 44,718 | 113.6 | 880:1 | 169.7 | |
| Primary care physicians Medicare-enrolled: 50% (CMS Doctors & Clinicians, August 2026) | 47,508 | 120.7 | 828:1 | 119.6 |
Trend: June 2021 to September 2026. State and US figures are pooled (total providers ÷ total population) for the same period.
Coverage and preventive care
Flu vaccinations41.0%
US 44.0% · CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023
US 36.0% · CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023
US 2,769 · CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023
US — · U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024
US — · U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024
US — · U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024
| Measure | California | US | Source |
|---|---|---|---|
| Flu vaccinations | 41.0% | 44.0% | CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023 |
| Mammography screening | 30.0% | 36.0% | CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023 |
| Preventable hospital stays | 2,428 | 2,769 | CMS Office of Minority Health, Mapping Medicare Disparities Tool, 2023 |
| Uninsured (under 65) | 6.9% | — | U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024 |
| Uninsured adults (18–64) | 8.3% | — | U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024 |
| Uninsured children (under 19) | 3.1% | — | U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE), 2024 |
Counties: dentists per 100,000
Showing 50 of 58. Flagged rows are listed after ranked rows.
Registered, not necessarily practicing. Provider counts come from the national provider registry (NPPES): active individual clinicians, counted once under their primary specialty at their practice-location county. Some registered clinicians are retired or see few patients. Counts under 10, or places with fewer than 10,000 residents, are flagged and left out of rankings. Nothing is estimated or imputed. Methodology
Sources: NPPES (CMS), September 2026; Census population estimates; Census SAHIE; CMS Mapping Medicare Disparities. Ltrl is not affiliated with County Health Rankings & Roadmaps.