246X00000X Cardiovascular Specialist/Technologist

Definition

An allied health professional who performs diagnostic examinations at the request or direction of a physician in one or more of the following three areas: invasive cardiology, noninvasive cardiology, and noninvasive peripheral vascular study. Cardiovascular technologists are one type of allied health professional for which the Committee on Allied Health Education and Accreditation has accredited education programs

— NUCC Health Care Provider Taxonomy, version 26.1

Where 246X00000X sits

• Group: Technologists, Technicians & Other Technical Service Providers — code 17 of 65 in the group
• Classification: Specialist/Technologist Cardiovascular 246X00000X

This is the general code for Specialist/Technologist Cardiovascular. 3 more specific codes sit beneath it; pick one of those when the provider's training or certification matches it, and this one otherwise. A provider may report more than one taxonomy code on an NPI but marks one as primary.

Medicare

246X00000X has no entry in the CMS Medicare Provider and Supplier Taxonomy Crosswalk. That usually means Medicare does not enroll this kind of provider under its own specialty — the provider can still hold an NPI and use this code on claims to other payers.

Related codes

History of 246X00000X

NUCC's notes record no dated changes for 246X00000X. The code set is republished every January and July, when codes are added, retitled or marked inactive; this page reflects version 26.1, so check the NUCC site if you are reading it after the next release.

Similar codes in other groups

If 246X00000X is not quite right, these codes in other groups share a word with it — often the same field practised by a different kind of provider:

• 207RC0000X Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians)

Using 246X00000X

The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.

Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV). Checked 2026-10-24. Methodology.