Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Associated Allergists and Asthma Specialists, Ltd

Allergy Physician in Orland Park, IL · enumerated 2007 · authorized official James Thompson, Secretary.

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

National Provider Identifier

1720117823

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Registry record

Entity type Organization (Type 2)

Legal business name Associated Allergists and Asthma Specialists, Ltd

Practice address 10733 W. 165th St., Orland Park, IL, 60467

Phone (708) 957-7468

Fax (708) 957-7471

Enumeration date Mar 5, 2007

Last updated in NPPES Jul 21, 2022

Taxonomy & classification

207KA0200X Allergy Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name James Thompson

Title Secretary

Phone (708) 798-2950

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 Associated Allergists and Asthma Specialists, Ltd?

Associated Allergists and Asthma Specialists, Ltd 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.