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Advocate Health and Hospitals Corporation

Critical Care Medicine (Internal Medicine) Physician in Oak Lawn, IL · enumerated 2015 · authorized official Michael Ries, President.

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

National Provider Identifier

1629441027

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Registry record

Entity type Organization (Type 2)
Legal business name Advocate Health and Hospitals Corporation
Other name <Unavail>
Practice address 4440 W 95th St, Oak Lawn, IL, 60453
Fax (708) 520-1820
Enumeration date Nov 6, 2015
Last updated in NPPES Jan 18, 2022

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Secondary
207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians Primary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians Secondary

Authorized official

Name Michael Ries
Title President

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

Who is the authorized official for Advocate Health and Hospitals Corporation?
NPPES lists Michael Ries (President) as the authorized official for this organization.
What is the NPI number for Advocate Health and Hospitals Corporation?
The NPI for Advocate Health and Hospitals Corporation is 1629441027, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-18.