How many cardiologists are there in Wisconsin?

599 active cardiologists are listed in Wisconsin per the 2026-05-06 CMS NPPES snapshot. That works out to 10.05 per 100,000 residents using U.S. Census 2024 population estimates.

Where does Wisconsin rank nationally for cardiologist supply?

Wisconsin ranks 22 of 51 U.S. states + DC by per-capita cardiologist density. It sits above the parent study's underserved threshold.

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/cardiology-supply-by-state-2026.

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cardiologists per 100,000 in Wisconsin

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

10.05 active cardiologists per 100,000 residents — ranked 22 of 51 U.S. states + DC.

cardiologists per 100,000 residents

10.05

599 active cardiologists · 5,960,975 residents · Wisconsin

National rank: 22 / 51
Percentile: 59th
Underserved threshold: 4 / 100k
Quartile: Q2

Comparable areas

Three states whose cardiologist per-100k density is closest to Wisconsin's — useful for benchmarking.

North Carolinarank 2110.05 / 100k
Indianarank 239.95 / 100k

Virginiarank 20

10.16 / 100k

Citeable result

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Wisconsin has 599 active cardiologists (10.05 per 100,000 residents) — ranked 22 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.

Source provenance

U.S. Centers for Medicare & Medicaid Services NPI Registry (NPPES) — public API
U.S. Census Bureau Population Estimates Program, 2024 Vintage (V2024)
Snapshot date: 2026-05-06

Open the parent cardiologist-supply study →

Limitations

This figure measures density (per-capita supply), not access. Drive time, appointment availability, insurance acceptance, and wait times are not modeled here.
The CMS NPPES registry counts NPI-1 individual providers with the relevant taxonomy code. It does not capture PA-led or NP-led practices that operate under a different taxonomy.
NPPES does not publish a county-level field of practice in its public API. County- and ZIP-scoped queries surface state-level density, with the geographic context preserved on this page.
Population is the U.S. Census Bureau 2024 vintage estimate. Population shifts post-2024 are not yet reflected.
The "underserved" threshold is the parent study's transparent baseline cutoff; it is not a regulatory or clinical definition. See the parent study for the rationale.

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