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American Anesthesiology of Illinois, LLC

Anesthesiology Physician in Merrillville, IN · enumerated 2008 · authorized official Ronald Hayes, President.

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

National Provider Identifier

1326224270

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Registry record

Entity type Organization (Type 2)
Legal business name American Anesthesiology of Illinois, LLC
Other name <Unavail>
Practice address 8701 Broadway, Merrillville, IN, 46410
Phone (800) 243-3839
Fax (844) 636-1410
Enumeration date Jan 10, 2008
Last updated in NPPES Sep 11, 2014

Taxonomy & classification

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians Primary
207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Ronald Hayes
Title President
Phone (800) 243-3839

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.

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Frequently asked questions

What is the NPI number for American Anesthesiology of Illinois, LLC?
The NPI for American Anesthesiology of Illinois, LLC is 1326224270, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for American Anesthesiology of Illinois, LLC?
NPPES lists Ronald Hayes (President) as the authorized official for this organization.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-09-11.