Cardiovascular Disease Physician: how many are there, and how many are in private practice?

National totals

What this specialty covers

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

Reading the sole-proprietor share

For this specialty, 4,123 records, or 12.3%, are flagged as sole proprietors in NPPES. This field is self-reported and is an imperfect proxy for private practice because it does not by itself establish ownership, employment arrangement, independence, or practice setting.

By state

New NPI registrations by year

Counts reflect the year each NPI was first issued, among records still active today. The final year is partial: this data covers through 2026-01-11.

Data notes

• The sole-proprietor field is self-reported by the provider in NPPES and is an imperfect proxy for private practice.
• A sole-proprietor count shown as <11 is suppressed: the true value is below 11, which could include zero.
• These are active NPI records, not a direct count of individual physicians. A clinician or organization may have more than one NPI.
• The count includes records selecting this taxonomy as their primary classification in NPPES, so it may not include every clinician who provides cardiovascular care.
• Providers are counted once, by their primary taxonomy code only.

Source: CMS National Plan and Provider Enumeration System (NPPES) Data Dissemination file, FOIA-disclosable public data under CMS-6060-N. Aggregated by Hero EMR on 2026-08-03; deactivated NPIs excluded; specialty assigned from the primary taxonomy code (NUCC 25.1). Counts below 11 are suppressed. Individual providers are never published. All provider data pages.

Common questions