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August Didion Sigelko, MD

Critical Care Medicine (Internal Medicine) Physician in Aurora, IL · enumerated 2018.

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

National Provider Identifier

1053815225

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Registry record

Entity type Individual (Type 1)
Name August Didion Sigelko
Credential MD
Sex Male
Practice address 2040 Ogden Ave Ste 401, Aurora, IL, 60504
Phone (630) 499-7500
Fax (630) 898-3970
Enumeration date Mar 21, 2018
Last updated in NPPES Jul 1, 2026

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 036160895 (IL) Secondary
207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 036160895 (IL) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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 August Sigelko practice?
The practice location on file with NPPES is in Aurora, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for August Sigelko?
The National Provider Identifier (NPI) for August Sigelko is 1053815225, 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 2026-07-01.