Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Medical Istitute of South Texas

Q: What is the NPI number for Medical Istitute of South Texas?

The NPI for Medical Istitute of South Texas is 1699802777, a Type 2 (organization) record in the CMS NPPES registry.

Orthopaedic Surgery Physician in Mcallen, TX · enumerated 2007 · authorized official Fred Perez, Medical Director.

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

National Provider Identifier

1699802777

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Registry record

Entity type Organization (Type 2)

Legal business name Medical Istitute of South Texas

Practice address 2501 Buddy Owens Ave, Mcallen, TX, 78504

Phone (956) 631-6109

Fax (956) 631-6125

Enumeration date Feb 27, 2007

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License F8611 (TX) Primary

Authorized official

Name Fred Perez

Title Medical Director

Phone (956) 631-6109

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 Medical Istitute of South Texas?

NPPES lists Fred Perez (Medical Director) as the authorized official for this organization.

What is the NPI number for Medical Istitute of South Texas?

The NPI for Medical Istitute of South Texas is 1699802777, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.