Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Ergun Onal, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1508804212

Ergun Onal, MD is a Critical Care Medicine (Internal Medicine) Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1740 W Taylor St
Chicago, IL 60612-7232
Phone: (312) 996-7699
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X (IL)

Record details

NPI number1508804212
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 3, 2006
Last updated in NPPESJuly 13, 2026

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