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Michigan Avenue Internists

Internal Medicine Physician in Chicago, IL · enumerated 2006 · authorized official Greg Ewert, President.

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

National Provider Identifier

1922066588

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Registry record

Entity type Organization (Type 2)
Legal business name Michigan Avenue Internists
Practice address 200 S Michigan Ave, Suite 805, Chicago, IL, 60604
Phone (312) 922-3815
Fax (312) 922-3789
Enumeration date May 3, 2006
Last updated in NPPES Sep 11, 2025

Taxonomy & classification

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Greg Ewert
Title President
Phone (312) 922-3815

Other identifiers

Identifier Type State Issuer
01605414 Other IL BC/BS OF ILLINOIS #

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 Michigan Avenue Internists?
The NPI for Michigan Avenue Internists is 1922066588, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Michigan Avenue Internists?
NPPES lists Greg Ewert (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 2025-09-11.