12.50 active cardiologists per 100,000 residents — ranked 10 of 51 U.S. states + DC.
Three states whose cardiologist per-100k density is closest to Rhode Island's — useful for benchmarking.
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Rhode Island has 139 active cardiologists (12.50 per 100,000 residents) — ranked 10 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: 4 per 100,000. Citation: Fonteum Research, /research/cardiology-supply-by-state-2026.