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Marek Banas, DO

Emergency Medicine Physician in Olympia Fields, IL · enumerated 2012.

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

National Provider Identifier

1467727297

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Registry record

Entity type Individual (Type 1)
Name Marek Banas
Credential DO
Sex Male
Practice address 20201 Crawford Ave, Olympia Fields, IL, 60461
Phone (708) 747-4000
Enumeration date Mar 13, 2012
Last updated in NPPES Jun 23, 2016

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036.138890 (IL) Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 20A14423 (CA) Primary
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 Marek Banas practice?
The practice location on file with NPPES is in Olympia Fields, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marek Banas?
The National Provider Identifier (NPI) for Marek Banas is 1467727297, 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 2016-06-23.