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Dr. Michael J Iwanicki, D.O.

Surgery Physician in Downers Grove, IL · enumerated 2006.

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

National Provider Identifier

1003845561

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Registry record

Entity type Individual (Type 1)
Name Dr. Michael J Iwanicki
Credential D.O.
Sex Male
Practice address 3815 Highland Ave, Tower 2, Suite 107, Downers Grove, IL, 60515
Phone (630) 275-7800
Fax (630) 810-9240
Enumeration date Jun 30, 2006
Last updated in NPPES Mar 25, 2025

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 036-105399 (IL) Primary
2086S0127X Trauma Surgery Physician Allopathic & Osteopathic Physicians · License 036-105399 (IL) Secondary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

Where does Michael Iwanicki practice?
The practice location on file with NPPES is in Downers Grove, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Michael Iwanicki?
The National Provider Identifier (NPI) for Michael Iwanicki is 1003845561, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-25.