Healthcare providers in California

Fonteum tracks 46,514 healthcare providers in California across the 14 medical specialties it ingests from the CMS NPPES NPI Registry, alongside 8,224 Medicare-certified facilities across 6 care families from CMS Care Compare, with HRSA shortage-area and OIG exclusion context. Displayed figures include available source, snapshot-date, and methodology-version metadata. Snapshot 2026-05-06 – 2026-05-07.

Provider supply by specialty in California

Active-provider counts for the 14 specialties Fonteum ingests from the CMS NPPES NPI Registry, with per-100,000 density (U.S. Census PEP V2025) and the national density rank of 51 jurisdictions. This covers the tracked specialties only — not every NPPES provider in California.

Source:CMS NPPES·Snapshot 2026-05-06 – 2026-05-07

Provider records in California

Medicare-certified facilities in California

8,224 Medicare-certified facilities operate in California across the families Fonteum tracks from CMS Care Compare. Each family links to its facility-level page for California.

Health professional shortage areas in California

Provider exclusions and sanctions in California

Related California healthcare data

• Hospital operating margins in California

  CMS HCRIS cost-report margins vs the national average.

• Oncology (Medical) access gap in California

  1.6 per 100k — national density rank #31.

• Obstetrics & Gynecology access gap in California

  2.3 per 100k — national density rank #28.

• Plastic Surgery access gap in California

  2.6 per 100k — national density rank #6.

• Home health agencies in California

  3,147 Medicare-certified home health agencies on CMS Care Compare.

• Hospice providers in California

  2,155 Medicare-certified hospice providers on CMS Care Compare.

• Nursing homes in California

  1,162 Medicare-certified nursing homes on CMS Care Compare.

• Dialysis facilities in California

  737 Medicare-certified dialysis facilities on CMS Care Compare.

• Ambulatory surgical centers in California

  645 Medicare-certified ambulatory surgical centers on CMS Care Compare.

• Hospitals in California

  378 Medicare-certified hospitals on CMS Care Compare.

Frequently asked questions about California providers

How many healthcare providers does Fonteum track in California?

Fonteum tracks 46,514 providers in California across the 14 medical specialties it currently ingests from the CMS NPPES NPI Registry. This is the supply within those tracked specialties, not every NPPES-registered provider in California. The snapshot date is 2026-05-06 – 2026-05-07.

Which medical specialty has the most providers in California?

Among the 14 tracked specialties, Chiropractic is the largest in California with 11,752 providers, or 29.8 per 100,000 residents — a national density rank of #22 of 51. Counts come from the CMS NPPES NPI Registry.

What Medicare-certified facilities are in California?

California has 8,224 Medicare-certified facilities across 6 families Fonteum tracks from CMS Care Compare, including nursing homes, hospitals, home health agencies, hospices, dialysis facilities, and ambulatory surgical centers. Each family links to its facility-level Care Compare page for California.

Are there provider exclusions or sanctions in California?

California reports 7,896 OIG LEIE federal exclusion records by address state, drawn from the OIG List of Excluded Individuals and Entities (loaded source date: May 8, 2026; checked July 12). State Medicaid exclusion lists are tracked for select states; California is covered by the federal OIG list on the sanctions hub. Displayed records link to their source exclusion list when a source URL is available.

Does Fonteum track shortage areas in California?

HRSA currently designates 1,623 active Health Professional Shortage Areas in California — 559 primary care, 546 dental health, and 518 mental health. A HPSA marks a geography, population, or facility with too few clinicians relative to need, scored 0–26 by HRSA.

How current is the California provider data?

The California provider counts use the CMS NPPES supply-by-state snapshot dated 2026-05-06 – 2026-05-07, under methodology nppes-supply-by-state/v2026.05. That page snapshot is not a claim of current NPPES or Care Compare coverage; source and date fields vary by section.

How California provider data is built

Provider counts aggregate the CMS NPPES supply-by-state datasets under methodology nppes-supply-by-state/v2026.05; facility counts read the latest CMS Care Compare snapshots; HPSA and exclusion figures draw from HRSA and OIG / state Medicaid sources. Supported values display the available source name, snapshot date, and methodology version.

NPPES dataset · Methodology · Source registry · Browse by specialty · All states

Fonteum is a US public-records evidence platform spanning healthcare, federal procurement, sanctions and watchlists, federal enforcement, intellectual property, securities filings, and global company registers. Production registry status is reported separately from loaded and fresh coverage. Dated platform counts come from the public platform-stats snapshot; source-file hashes are reported where present, and deterministic fact-to-signature linkage is not claimed.