Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Gregory Bales

Individual provider Urology Physician · NPI 1184789919

Gregory Bales is an Urology Physician in Chicago, Illinois. Works from 2 locations. Licensed in Illinois and Indiana.

Licensed in
IL, IN
In the registry since
2006
Specialties on file
2
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

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

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 7910 W Jefferson Blvd Ste 112, Fort Wayne, IN 46804-4159 — (260) 969-7121

Specialties & licences

Urology Physician (primary) Taxonomy 208800000X · Licence 036090610 (IL)
Urology Physician Taxonomy 208800000X · Licence 01052755A (IN)

Record details

NPI number1184789919
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedDecember 22, 2006
Last updated in NPPESJanuary 11, 2024
Certification dateJanuary 11, 2024

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients199
Services billed 430 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Other providers in Chicago