Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Monica Valeria Vallejo Neacato, MD

Student in an Organized Health Care Education/Training Program in Mercedes, TX · enumerated 2024.

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

National Provider Identifier

1003663964

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Registry record

Entity type Individual (Type 1)

Name Monica Valeria Vallejo Neacato

Credential MD

Sex Female

Practice address 2810 W. Expressway 83, Mercedes, TX, 78570

Phone (956) 296-1831

Fax (956) 296-2970

Enumeration date Apr 30, 2024

Last updated in NPPES Aug 30, 2024

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

How do I verify Monica Vallejo Neacato's NPI record?

Cross-check NPI 1003663964 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1003663964 active?

Yes, as of the latest NPPES snapshot, NPI 1003663964 is active (record last updated 2024-08-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-30.