NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

On-Site Cardiovascular Imaging LLC

Sonography Specialist/Technologist Cardiovascular in San Antonio, TX · enumerated 2009 · authorized official Simon Huizar, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1164653861

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name On-Site Cardiovascular Imaging LLC
Practice address 8026 Vantage Dr, Suite 130 G, San Antonio, TX, 78230
Enumeration date Jul 30, 2009
Last updated in NPPES Apr 11, 2010

Taxonomy & classification

246XS1301X Sonography Specialist/Technologist Cardiovascular Technologists, Technicians & Other Technical Service Providers · License 42353 (TX) Primary

Authorized official

Name Simon Huizar
Title President

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Who is the authorized official for On-Site Cardiovascular Imaging LLC?
NPPES lists Simon Huizar (President) as the authorized official for this organization.
What is the NPI number for On-Site Cardiovascular Imaging LLC?
The NPI for On-Site Cardiovascular Imaging LLC is 1164653861, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-04-11.