NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Allergy and Asthma Associated

Allergy & Immunology (Internal Medicine) Physician in Sherman, TX · enumerated 2007 · authorized official Vern Laing, President Owner.

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

National Provider Identifier

1902021157

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Allergy and Asthma Associated
Practice address 1117 Gallagher Dr, Suite 440, Sherman, TX, 75090
Fax (903) 870-0372
Enumeration date Apr 14, 2007
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

207RA0201X Allergy & Immunology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License H9363 (TX) Primary

Authorized official

Name Vern Laing
Title President Owner

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 Allergy and Asthma Associated?
Allergy and Asthma Associated is registered in NPPES as a Allergy & Immunology (Internal 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.

Providers at this address

Browse all →

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