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

James Ahn

Individual provider Internal Medicine Physician · NPI 1457594574

James Ahn is an Internal Medicine Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2009.

Licensed in
IL
In the registry since
2009

Practice location Address checks out

5841 S Maryland Ave
Chicago, IL 60637-1443
Phone: (888) 824-0200
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 036125480 (IL)

Record details

NPI number1457594574
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 20, 2009
Last updated in NPPESOctober 24, 2022
Mailing address150 Harvester Dr, Suite 300, Burr Ridge, IL 60527-5919

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