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

William R. Ahrens

Individual provider Emergency Medicine Physician · NPI 1336248301

William R. Ahrens is an Emergency Medicine Physician in Chicago, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006

Practice location Address checks out

1740 W Taylor St
Chicago, IL 60612-7232
Phone: (866) 600-2273
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X (IL)

Record details

NPI number1336248301
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedSeptember 22, 2006
Last updated in NPPESJuly 8, 2007
Mailing address809 S Marshfield Ave, 9th Floor (M/C 732), Chicago, IL 60612-4305

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