How many OB-GYNs are there in California?

888 active OB-GYNs are listed in California per the 2026-05-06 CMS NPPES snapshot. That works out to 2.25 per 100,000 residents using U.S. Census 2024 population estimates.

Where does California rank nationally for OB-GYN supply?

California ranks 28 of 51 U.S. states + DC by per-capita OB-GYN density. It sits at or below the 10-per-100k underserved threshold used by the parent Fonteum study.

U.S. Centers for Medicare & Medicaid Services NPI Registry (NPPES) — public API Combined with U.S. Census Bureau Population Estimates Program, 2024 Vintage (V2024) Snapshot date: 2026-05-06. The full per-state dataset is published at fonteum.com/research/obgyn-supply-by-state-2026.

PROVIDER ACCESS GAP · STATE

OB-GYNs per 100,000 in California

Name: California — OB-GYN supply per 100,000
Creator: Fonteum Research
Published: 2026-05-06
License: https://fonteum.com/editorial-policy

2.25 active OB-GYNs per 100,000 residents — ranked 28 of 51 U.S. states + DC.

OB-GYNs per 100,000 residents

2.25

888 active OB-GYNs · 39,431,263 residents · California

National rank: 28 / 51
Percentile: 47th
Underserved threshold: 10 / 100k
Quartile: Q3

Comparable areas

Three states whose OB-GYN per-100k density is closest to California's — useful for benchmarking.

Tennesseerank 272.26 / 100k
Missourirank 292.24 / 100k

Methodology · Corrections log · Editorial policy

OB-GYNs per 100,000 in California

Comparable areas

OB-GYNs per 100,000 in California

Comparable areas

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OB-GYNs per 100,000 in California

Comparable areas

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OB-GYNs per 100,000 in California

Comparable areas

Compliance posture

Citeable result

Source provenance

Limitations

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