NPPES file of Aug 9, 2026

Illinois Cancer Specialists

Illinois Cancer Specialists holds 11 active organization NPIs in the federal registry, with practice locations in 9 Illinois cities. 9 list hematology & oncology physician as their primary taxonomy; 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, 2

  1. Chicago2
  2. Niles2
  3. Arlington Heights1
  4. Bolingbrook1
  5. Crystal Lake1
  6. Elgin1
  7. Hinsdale1
  8. Mchenry1

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

Most NPIs were issued in 2006 and 2018

Illinois Cancer Specialists NPIs by year issued2005: 1, 2006: 6, 2007: 0, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 1, 2014: 0, 2015: 1, 2016: 0, 2017: 0, 2018: 20246200620082010201220142016201862111
Illinois Cancer Specialists NPIs by year issued2005: 1, 2006: 6, 2007: 0, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 1, 2014: 0, 2015: 1, 2016: 0, 2017: 0, 2018: 202462005200620072008200920102011201220132014201520162017201862111
Illinois Cancer Specialists NPIs by year issued2005: 1, 2006: 6, 2007: 0, 2008: 0, 2009: 0, 2010: 0, 2011: 0, 2012: 0, 2013: 1, 2014: 0, 2015: 1, 2016: 0, 2017: 0, 2018: 20246200620082010201220142016201862111

Source: CMS NPPES, enumeration dates.

6 NPIs were issued in 2006 alone, more than in any other year; none in 9 of the years between.

Chicago locations

The city with the most Illinois Cancer Specialists NPIs. The full list of all 11 follows.

NPILocationPrimary taxonomyIssued
17503388447447 W TALCOTT AVE SUITE ONE, ChicagoHematology & Oncology PhysicianMay 27, 2006
14073313417447 W TALCOTT AVE STE 1, ChicagoHematology & Oncology PhysicianSep 26, 2018
All 11 locations, by city
NPILocationPrimary taxonomyIssued
1568836070880 W CENTRAL RD SUITE 8200, Arlington HeightsAdult Health Nurse PractitionerNov 20, 2015
1982942306396 REMINGTON BLVD STE 141, BolingbrookHematology & Oncology PhysicianJan 18, 2013
17503388447447 W TALCOTT AVE SUITE ONE, ChicagoHematology & Oncology PhysicianMay 27, 2006
14073313417447 W TALCOTT AVE STE 1, ChicagoHematology & Oncology PhysicianSep 26, 2018
1194206367360 STATION DR STE 201, Crystal LakeHematology & Oncology PhysicianAug 27, 2018
12553284641710 N RANDALL RD STE 300, ElginHematology & Oncology PhysicianOct 3, 2005
1790899599908 N ELM ST SUITE 210, HinsdaleHematology & Oncology PhysicianAug 18, 2006
19221144534305 W MEDICAL CENTER DR STE 1, MchenryHematology & Oncology PhysicianAug 21, 2006
11644839138915 W GOLF RD, NilesHematology & Oncology PhysicianMar 31, 2006
16493438648915 W GOLF RD, NilesCommunity/Retail PharmacyNov 16, 2006
11342356663703 DOTY RD STE 6, WoodstockHematology & Oncology PhysicianAug 21, 2006

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 Illinois Cancer Specialists have 11 NPIs?

An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Illinois Cancer Specialists's NPIs list practice locations in 9 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.