Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Carlos E Alvarez-Meraz, MD
Specialist in San Antonio, TX · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356450050
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Registry record
Entity type Individual (Type 1)
Name Dr. Carlos E Alvarez-Meraz
Credential MD
Sex Male
Practice address 7434 Louis Pasteur Dr Ste 109, San Antonio, TX, 78229
Phone (210) 614-3723
Fax (210) 614-3908
Enumeration date Aug 29, 2006
Last updated in NPPES Sep 11, 2025
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 142090301 | 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.
Frequently asked questions
What specialty is Carlos Alvarez-Meraz?
Carlos Alvarez-Meraz is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.