Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Texas Regional Asthma & Allergy Center

Allergy Physician in Southlake, TX · enumerated 2006 · authorized official Rene Leon, MD.

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

National Provider Identifier

1568545739

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Texas Regional Asthma & Allergy Center

Practice address 900 E Southlake Blvd, Ste 300, Southlake, TX, 76092

Phone (817) 421-0770

Fax (817) 421-4759

Enumeration date Oct 23, 2006

Last updated in NPPES Jan 9, 2024

Taxonomy & classification

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Rene Leon

Title MD

Phone (817) 421-0770

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 Texas Regional Asthma & Allergy Center?

Texas Regional Asthma & Allergy Center is registered in NPPES as a Allergy 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.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-01-09.