Registry data as of Aug 27, 2026

Cook County

Cook County holds 67 active organization NPIs in the federal registry, with practice locations in 10 Illinois cities. Each location can bill under its own NPI.

CMS NPPES registry, file of Aug 9, 2026 · legal names grouped after punctuation and "LLC" are removed · method · Verify with CMS →

Which NPI is yours?

Search the organization with your city to find the NPI for the location you visit or bill.

Find a location's NPI

Chicago has the most NPIs, 45

  1. Chicago45
  2. Oak Forest7
  3. Blue Island4
  4. Arlington Heights2
  5. Cicero2
  6. Ford Heights2
  7. Robbins2
  8. North Riverside1

Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.

Most NPIs were issued in 2007 and 2020

Cook County NPIs by year issued2006: 6, 2007: 30, 2008: 1, 2009: 0, 2010: 2, 2011: 3, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 1, 2018: 3, 2019: 0, 2020: 20, 2021: 0, 2022: 101020302006200820102012201420162018202020222007: 30206123131
Cook County NPIs by year issued2006: 6, 2007: 30, 2008: 1, 2009: 0, 2010: 2, 2011: 3, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 1, 2018: 3, 2019: 0, 2020: 20, 2021: 0, 2022: 101020302006200720082009201020112012201320142015201620172018201920202021202230206123131
Cook County NPIs by year issued2006: 6, 2007: 30, 2008: 1, 2009: 0, 2010: 2, 2011: 3, 2012: 0, 2013: 0, 2014: 0, 2015: 0, 2016: 0, 2017: 1, 2018: 3, 2019: 0, 2020: 20, 2021: 0, 2022: 101020302006200820102012201420162018202020222007: 30206123131

Source: CMS NPPES, enumeration dates.

30 NPIs were issued in 2007 alone, more than in any other year; none in 8 of the years between.

Chicago locations

The city with the most Cook County NPIs. The full list of all 67 follows.

NPILocationPrimary taxonomyIssued
15886128321901 W HARRISON ST, ChicagoGeneral Acute Care HospitalMay 5, 2006
1487664561500 EAST 51ST STREET, ChicagoGeneral Acute Care HospitalAug 9, 2006
1912063439605 S WOLCOTT AVE, SUITE 605, ChicagoFamily Medicine PhysicianDec 29, 2006
1588781298500 E 51ST STREET, ROOM 2008 AND 2050, ChicagoClinic PharmacyMar 26, 2007
10130357811901 W HARRISON ST, ChicagoClinic PharmacyMar 27, 2007
15988846294600 W CHICAGO AVE, ChicagoPrimary Care Clinic/CenterMar 28, 2007
13362681431240 S DAMEN AVE, ChicagoHealth Service Clinic/CenterMar 29, 2007
14978743256337 S WOODLAWN AVE, ChicagoPrimary Care Clinic/CenterMar 29, 2007
All 67 locations, by city
NPILocationPrimary taxonomyIssued
15180874283250 N ARLINGTON HEIGHTS RD, Arlington HeightsPrimary Care Clinic/CenterApr 2, 2007
13660733553250 N ARLINGTON HEIGHTS RD, Arlington HeightsFamily Medicine PhysicianJan 29, 2020
104323829812757 WESTERN AVE, Blue IslandClinic PharmacyJul 17, 2006
164939002212757 SOUTH WESTERN AVENUE, Blue IslandMulti-Specialty Clinic/CenterMar 30, 2007
178020570812757 S. WESTERN AVE, Blue IslandGeriatric Medicine (Family Medicine) PhysicianApr 30, 2020
170040074412757 SOUTH WESTERN AVENUE, Blue IslandFamily Medicine PhysicianJun 5, 2020
15886128321901 W HARRISON ST, ChicagoGeneral Acute Care HospitalMay 5, 2006
1487664561500 EAST 51ST STREET, ChicagoGeneral Acute Care HospitalAug 9, 2006
1912063439605 S WOLCOTT AVE, SUITE 605, ChicagoFamily Medicine PhysicianDec 29, 2006
1588781298500 E 51ST STREET, ROOM 2008 AND 2050, ChicagoClinic PharmacyMar 26, 2007
10130357811901 W HARRISON ST, ChicagoClinic PharmacyMar 27, 2007
15988846294600 W CHICAGO AVE, ChicagoPrimary Care Clinic/CenterMar 28, 2007
13362681431240 S DAMEN AVE, ChicagoHealth Service Clinic/CenterMar 29, 2007
14978743256337 S WOODLAWN AVE, ChicagoPrimary Care Clinic/CenterMar 29, 2007
17302095451901 W HARRISON ST, ChicagoGeneral Acute Care HospitalMar 29, 2007
12453500401901 W HARRISON ST, ChicagoMulti-Specialty Clinic/CenterMar 29, 2007
12958550961135 W 69TH ST, ChicagoPrimary Care Clinic/CenterMar 29, 2007
19726235284934 S WABASH AVE RM 165, ChicagoStudent Health Clinic/CenterMar 29, 2007
18615126672424 S PULASKI RD, ChicagoPrimary Care Clinic/CenterMar 29, 2007
16897944895501 W. FULLERTON AVE, ChicagoPrimary Care Clinic/CenterMar 29, 2007
13968650773525 S MICHIGAN AVE, ChicagoPrimary Care Clinic/CenterMar 29, 2007
1831219450467 EAST 31ST STREET, ChicagoMulti-Specialty Clinic/CenterMar 29, 2007
11948454954859 S WABASH AVE, ChicagoStudent Health Clinic/CenterMar 30, 2007
1437279676500 E 51ST ST, ChicagoGeneral Acute Care HospitalMar 30, 2007
11241483663410 W VAN BUREN ST, ChicagoPrimary Care Clinic/CenterMar 30, 2007
1982724894500 E. 51ST STREET, ChicagoMulti-Specialty Clinic/CenterApr 2, 2007
13362692401240 S DAMEN AVE, ChicagoStudent Health Clinic/CenterApr 2, 2007
18615139962020 W HARRISON ST, ChicagoMulti-Specialty Clinic/CenterApr 3, 2007
18212789381901 W HARRISON ST, ChicagoEnd-Stage Renal Disease (ESRD) Treatment Clinic/CenterNov 6, 2007
17000514481100 S HAMILTON AVE, ChicagoPublic Health or Welfare AgencyApr 24, 2008
17708921351901 W HARRISON ST RM 1230A, ChicagoInstitutional PharmacyOct 4, 2010
18415009561901 W HARRISON ST RM B178, ChicagoPharmacyOct 8, 2010
19425084601901 W HARRISON ST, ChicagoMail Order PharmacyMar 8, 2011
18213851701969 W. OGDEN AVE., ChicagoEmergency Medicine PhysicianJul 7, 2011
16295971251901 W HARRISON ST, ChicagoNon-emergency Medical Transport (VAN)Sep 15, 2017
13861106741950 W POLK ST, ChicagoMulti-Specialty Clinic/CenterOct 15, 2018
1477021913500 E 51ST ST, ChicagoMulti-Specialty Clinic/CenterNov 2, 2018
10932835331901 W HARRISON ST, ChicagoMulti-Specialty Clinic/CenterNov 2, 2018
17903167841901 W HARRISON ST, ChicagoFamily Medicine PhysicianJan 29, 2020
16094076912424 S PULASKI RD, ChicagoFamily Medicine PhysicianJan 29, 2020
15185985071950 W POLK ST, ChicagoFamily Medicine PhysicianJan 29, 2020
17509126482840 W FULLERTON AVE, ChicagoFamily Medicine PhysicianJan 29, 2020
15488914356337 S WOODLAWN AVE, ChicagoFamily Medicine PhysicianJan 29, 2020
13660732562020 W HARRISON ST, ChicagoFamily Medicine PhysicianJan 29, 2020
19226399131135 W 69TH ST, ChicagoFamily Medicine PhysicianJan 29, 2020
17408117361240 S DAMEN AVE, ChicagoFamily Medicine PhysicianJan 29, 2020
15680935574800 W CHICAGO AVE, ChicagoFamily Medicine PhysicianJan 29, 2020
11943560893525 S MICHIGAN AVE, ChicagoFamily Medicine PhysicianJan 29, 2020
1235760224500 E 51ST ST, ChicagoFamily Medicine PhysicianJan 29, 2020
1578170221430 EAST 51ST PL, ChicagoRenal Dialysis TechnicianSep 28, 2020
1831846922430 EAST 51ST PL, ChicagoEnd-Stage Renal Disease (ESRD) Treatment Clinic/CenterMar 8, 2022
11049469042423 S AUSTIN BLVD, CiceroPrimary Care Clinic/CenterMar 29, 2007
14579824492423 S AUSTIN BLVD, CiceroFamily Medicine PhysicianJan 29, 2020
17605024391645 COTTAGE GROVE AVE, Ford HeightsPrimary Care Clinic/CenterMar 29, 2007
14276894131645 COTTAGE GROVE AVE, Ford HeightsFamily Medicine PhysicianJan 29, 2020
12953664661800 S. HARLEM AVE, North RiversideFamily Medicine PhysicianJan 28, 2020
121595580215900 S CICERO AVE, Oak ForestMail Order PharmacyJul 18, 2006
168973971615900 SOUTH CICERO AVENUE, Oak ForestGeneral Acute Care HospitalDec 27, 2006
134636068215900 CICERO, Oak ForestGeneral Acute Care HospitalMar 30, 2007
178070416315900 S CICERO, Oak ForestMulti-Specialty Clinic/CenterMar 30, 2007
102322873115900 SOUTH CICERO AVENUE, Oak ForestGeneral Acute Care HospitalMay 23, 2007
164955193815900 CICERO AVE, Oak ForestClinic/CenterAug 31, 2011
145798234015900 S. CICERO, Oak ForestFamily Medicine PhysicianJan 29, 2020
1336269133650 E PHOENIX CENTER DR, PhoenixPrimary Care Clinic/CenterMar 29, 2007
14978752981800 S. HARLEM AVE, RiversidePrimary Care Clinic/CenterMar 29, 2007
192212784413450 S KEDZIE AVE, RobbinsPrimary Care Clinic/CenterMar 29, 2007
105394204513450 S KEDZIE AVE, RobbinsFamily Medicine PhysicianJan 29, 2020

Related names

Checking an organization

  1. Match the NPI to the exact location you will visit or bill; each location can have its own.
  2. Confirm the business entity with the secretary of state.
  3. Check the HHS-OIG exclusion list for the organization and its owners.
  4. Verify each clinician you will see on their own record and with the state license search.

Common questions

Why does Cook County have 67 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Cook County's NPIs list practice locations in 10 cities.

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.