Provider directory · By specialty
Healthcare providers — Cardiology
CMS NPPES registration records for the Cardiology specialty — national supply, per-state distribution, and national MIPS quality context, with field-level provenance back to the federal source.
35,006 active Cardiology providers are registered in the CMS NPPES NPI Registry across all 50 states and the District of Columbia, snapshotted 2026-05-06. The table below shows how that supply is distributed by state — both the raw active-provider count and the population-adjusted density (providers per 100,000 residents, U.S. Census PEP). Each record carries field-level provenance back to its federal source.
Cardiology providers by state
All 51 jurisdictions, ranked by active-provider count. Density rank is 1 = highest providers per 100,000 residents. Population denominators are U.S. Census Bureau PEP V2025 estimates.
| State | Active providers | Per 100k | Density rank |
|---|---|---|---|
| California | 3,275 | 8.3 | 32/51 |
| New York | 3,111 | 15.7 | 4/51 |
| Florida | 2,567 | 11 | 16/51 |
| Texas | 2,329 | 7.4 | 40/51 |
| Pennsylvania | 1,882 | 14.4 | 5/51 |
| Illinois | 1,482 | 11.7 | 12/51 |
| Ohio | 1,349 | 11.4 | 14/51 |
| New Jersey | 1,322 | 13.9 | 6/51 |
| Massachusetts | 1,292 | 18.1 | 2/51 |
| North Carolina | 1,110 | 10 | 21/51 |
| Michigan | 1,106 | 10.9 | 17/51 |
| Georgia | 970 | 8.7 | 29/51 |
| Virginia | 895 | 10.2 | 20/51 |
| Minnesota | 782 | 13.5 | 7/51 |
| Tennessee | 747 | 10.3 | 19/51 |
| Maryland | 738 | 11.8 | 11/51 |
| Arizona | 713 | 9.4 | 25/51 |
| Indiana | 689 | 10 | 23/51 |
| Missouri | 671 | 10.7 | 18/51 |
| Washington | 671 | 8.4 | 30/51 |
| Connecticut | 605 | 16.5 | 3/51 |
| Wisconsin | 599 | 10 | 22/51 |
| Louisiana | 516 | 11.2 | 15/51 |
| Colorado | 468 | 7.9 | 36/51 |
| South Carolina | 450 | 8.2 | 33/51 |
| Kentucky | 442 | 9.6 | 24/51 |
| Alabama | 417 | 8.1 | 34/51 |
| Oregon | 358 | 8.4 | 31/51 |
| Oklahoma | 299 | 7.3 | 42/51 |
| Kansas | 261 | 8.8 | 27/51 |
| Iowa | 255 | 7.9 | 35/51 |
| Nevada | 243 | 7.4 | 41/51 |
| Arkansas | 219 | 7.1 | 43/51 |
| Utah | 212 | 6.1 | 49/51 |
| Mississippi | 195 | 6.6 | 46/51 |
| New Hampshire | 182 | 12.9 | 8/51 |
| Maine | 177 | 12.6 | 9/51 |
| West Virginia | 154 | 8.7 | 28/51 |
| District of Columbia | 153 | 21.8 | 1/51 |
| Nebraska | 153 | 7.6 | 38/51 |
| New Mexico | 140 | 6.6 | 47/51 |
| Rhode Island | 139 | 12.5 | 10/51 |
| Delaware | 122 | 11.6 | 13/51 |
| Idaho | 102 | 5.1 | 51/51 |
| Hawaii | 96 | 6.6 | 45/51 |
| Montana | 86 | 7.6 | 39/51 |
| South Dakota | 64 | 6.9 | 44/51 |
| North Dakota | 61 | 7.7 | 37/51 |
| Vermont | 60 | 9.3 | 26/51 |
| Alaska | 45 | 6.1 | 48/51 |
| Wyoming | 32 | 5.4 | 50/51 |
Quality context: MIPS scores
Fonteum publishes the national CMS Quality Payment Program (QPP) MIPS score distribution. A per-specialty cross-tab is not yet available in the public QPP release, so the figures below are national across all participating clinicians — not specific to Cardiology.
Frequently asked questions
How many Cardiology providers are there in the United States?
Fonteum tracks the active Cardiology providers registered in the CMS NPPES NPI Registry across all 50 states and the District of Columbia. The national total and per-state breakdown are shown in the distribution table on this page, sourced from the NPPES supply file.
Which states have the most Cardiology providers?
By active-provider count, the states with the most Cardiology providers are California, New York, Florida. California has the most (3,275 active providers). Full per-state counts are in the distribution table above.
Where are Cardiology providers most scarce relative to population?
Adjusted for population (providers per 100,000 residents, U.S. Census PEP), Idaho, Wyoming, Utah have the lowest Cardiology provider density in the current snapshot. Density rank is shown for every state in the table above.
Does Fonteum report MIPS quality scores for Cardiology?
Fonteum publishes the national CMS Quality Payment Program MIPS score distribution for 477,137 Performance Year 2023 clinician-score rows (mean 83.06, median 85.49). A per-specialty cross-tab is not yet available in the public QPP release, so these figures are national rather than specific to Cardiology. Individual clinician scores can be looked up by NPI with the MIPS score lookup tool.
What does "active provider" mean in this data?
An active provider is an NPI record in the CMS NPPES NPI Registry whose primary taxonomy classifies it under the Cardiology specialty, in the snapshot Fonteum ingested. The count reflects registered providers, not practicing headcount or facility affiliations.
Where does this Cardiology provider data come from?
Provider counts come from the CMS National Provider Identifier (NPPES) registry; population denominators for the per-100k density come from the U.S. Census Bureau Population Estimates Program (PEP V2025). The methodology names the datasets and dated observations used; record-level provenance fields can be null.