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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Horacio Alberto Diaz, MD

Family Medicine Physician in Laredo, TX · enumerated 2005 · practices at Wellness Whisper, Pllc,.

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

National Provider Identifier

1912999699

Verified

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Registry record

Entity type Individual (Type 1)
Name Horacio Alberto Diaz
Credential MD
Sex Male
Practice address Laredo, TX, 78041
Phone (956) 267-4667
Fax (956) 267-4667
Enumeration date Aug 18, 2005
Last updated in NPPES Dec 8, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License K4408 (TX) Primary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License K4408 (TX) Secondary
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
101646103 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.

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Frequently asked questions

Where does Horacio Diaz practice?
The practice location on file with NPPES is in Laredo, TX. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Horacio Diaz?
The National Provider Identifier (NPI) for Horacio Diaz is 1912999699, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-08.