Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Greater Valley Pathology Group PA

Clinical Pathology/Laboratory Medicine Physician in Mcallen, TX · enumerated 2006 · authorized official Carlos Mattioli, President.

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

National Provider Identifier

1306902283

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Registry record

Entity type Organization (Type 2)

Legal business name Greater Valley Pathology Group PA

Practice address 600 Wichita Ave, Apt #501, Mcallen, TX, 78503

Phone (956) 630-2225

Fax (956) 630-2275

Enumeration date Dec 28, 2006

Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207ZP0105X Clinical Pathology/Laboratory Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Carlos Mattioli

Title President

Phone (956) 630-2225

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 type of organization is Greater Valley Pathology Group PA?

Greater Valley Pathology Group PA is registered in NPPES as a Clinical Pathology/Laboratory Medicine Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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