NPPES file of Aug 9, 2026

Pediatrics Physician in Illinois

3,176 NPPES records list pediatrics physician with a practice address in Illinois, 25 per 100,000 residents, the 11th highest rate of 51. Chicago and Park Ridge have the most; each record links to the provider's NPI and the Illinois license search. Page 64 of 64.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 208000000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Chicago has the most, 1,142

  1. Chicago1,142
  2. Park Ridge125
  3. Oak Lawn115
  4. Springfield108
  5. Peoria102

Pediatrics Physician records in Illinois

  1. Anna Zarov, MDChicago, IL 606121891541116
  2. Angeline ZarzuelaLake Barrington, IL 600101790941235
  3. Cassia Zarzuela, M.D.Oswego, IL 605431700012713
  4. Najla Zayed, DOOak Lawn, IL 604531447990882
  5. Audrey Zeis, MDChicago, IL 606371811458136
  6. Kirsten Zeitler, MDElmhurst, IL 601261811947930
  7. Deena Zeltser, MDChicago, IL 606571962663252
  8. Steven Zenker, MDAlton, IL 620021861485708
  9. Nicholas Zessis, MDChicago, IL 606111558750430
  10. Derek ZhangChicago, IL 606121871358754
  11. Luchang Zhang, MDChicago, IL 606371730821109
  12. Christina Zhou, MDChicago, IL 606371588305767
  13. Sara Zibert, MDRockford, IL 611021639187669
  14. Anna Ziemer, M.D.Urbana, IL 618021376805077
  15. Jennifer Ziemianin, D.O.Chicago, IL 606141962676833
  16. Cassandra Ziesemer, DOOak Lawn, IL 604531265372239
  17. Edward Zieserl, MDEvanston, IL 602011750456299
  18. Bree Zimmerman, M.D.Chicago, IL 606121982915112
  19. Melissa Zimmerman, MD, MPHDeerfield, IL 600151831551332
  20. Kacey Zobrist, DOMorton, IL 615501700377603
  21. Kimberly Zoellick, FNPPalos Park, IL 604641104344431
  22. Deborah Zoller, MDVernon Hills, IL 600611881679603
  23. Sabrina Zubair, M.D., FAAPWheaton, IL 601871851430482
  24. Sylwia Zubek, DONorth Riverside, IL 605461629718572
  25. Hannah ZuckermanChicago, IL 606371174268791
  26. Marilyn Zwirn, D.O.Libertyville, IL 600481619079134

Source: CMS NPPES, primary taxonomy 208000000X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 11 of 51 per resident

  1. Delaware28
  2. Vermont28
  3. Pennsylvania26
  4. Illinois25
  5. Ohio25
  6. Missouri25
  7. 50 states and D.C.22

Source: CMS NPPES, primary taxonomy 208000000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

32.2% of these records appear in a Medicare file, against 36.4% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Illinois32.2%
  2. United States36.4%

Pediatrics Physician records in Illinois, measured

  • In a Medicare file1,024 of 3,176 · 32.2% here, 36.4% nationally
  • In the CMS Doctors and Clinicians file235 · 7.4% here, 8.7% nationally
  • Not updated in five years or more1,711 · 53.9% here, 58.4% nationally
  • Median graduation year2010 · the 235 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 208000000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

3,176 NPPES records list pediatrics physician (208000000X) as their primary taxonomy with a practice address in Illinois: 25 per 100,000 residents against 22 nationally (50 states and D.C.). Chicago has 1,142 of them (36%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Ohio2,972
  2. Pennsylvania3,382
  3. Massachusetts2,628
  4. Florida3,996

States with a similar rate per 100,000

  1. Puerto Rico25.2
  2. Missouri25.2
  3. California23.8
  4. New Hampshire23.5

The largest states

  1. California9,272
  2. New York5,795
  3. Texas5,641
  4. Florida3,996
  5. Pennsylvania3,382

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.