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2.67 active OB-GYNs per 100,000 residents — ranked 15 of 51 U.S. states + DC.
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Colorado has 159 active OB-GYNs (2.67 per 100,000 residents) — ranked 15 of 51 U.S. states + DC. Source: CMS NPPES NPI Registry + U.S. Census Bureau, snapshot 2026-05-06. Threshold for "underserved" in the parent study: 10 per 100,000. Citation: Fonteum Research, /research/obgyn-supply-by-state-2026.
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