9.95 active cardiologists per 100,000 residents — ranked 23 of 51 U.S. states + DC.
Three states whose cardiologist per-100k density is closest to Indiana's — useful for benchmarking.
Plain-text citation block — paste verbatim into a brief, story, or report.
Indiana has 689 active cardiologists (9.95 per 100,000 residents) — ranked 23 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.