NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Javier Alonso, M.D., Ph.D., P.A.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Corpus Christi, TX · enumerated 2006 · authorized official Michelle Bauer, Administrator.

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

National Provider Identifier

1558315036

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Javier Alonso, M.D., Ph.D., P.A.
Practice address 5242 Holly Rd, Corpus Christi, TX, 78411
Fax (361) 992-6622
Enumeration date May 20, 2006
Last updated in NPPES Jul 1, 2015

Taxonomy & classification

208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License L2095 (TX) Primary

Authorized official

Name Michelle Bauer
Title Administrator

Other identifiers

Identifier Type State Issuer
DG6514 Other TX MEDICARE RAILROAD
148161601 Medicaid TX -

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

What is the NPI number for Javier Alonso, M.D., Ph.D., P.A.?
The NPI for Javier Alonso, M.D., Ph.D., P.A. is 1558315036, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Javier Alonso, M.D., Ph.D., P.A.?
NPPES lists Michelle Bauer (Administrator) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-07-01.