NPPES file of Aug 9, 2026

Pediatric Hematology & Oncology Physician in Illinois

119 NPPES records list pediatric hematology & oncology physician with a practice address in Illinois, 0.9 per 100,000 residents, the 24th highest rate of 50. Chicago and Peoria have the most; each record links to the provider's NPI and the Illinois license search. Page 3 of 3.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2080P0207X · 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, 85

  1. Chicago85
  2. Peoria9
  3. Park Ridge7
  4. Oak Lawn6
  5. Burr Ridge3

Pediatric Hematology & Oncology Physician records in Illinois

  1. Horace Smith, MDChicago, IL 606141376606210
  2. Elizabeth Sokol, M.D.Chicago, IL 606111689969206
  3. Uma Subramanian, MDBurr Ridge, IL 605271457401408
  4. Nicole Sunseri, M.D., PH.D.Chicago, IL 606371659719813
  5. Michael Tarantino, MDPeoria, IL 616141396731063
  6. Alexis Thompson, MDChicago, IL 606141467420737
  7. Patrick Tomboc, D.O.Park Ridge, IL 600681629234208
  8. Emily Vakulskas, MDChicago, IL 606371295430379
  9. Leonard Valentino, M.D.Chicago, IL 606121952336208
  10. Gabriela Villanueva, M.DChicago, IL 606371700158722
  11. Samuel VolchenboumChicago, IL 606371659460434
  12. Angela Waanders, M.D., MPHChicago, IL 606111588857718
  13. David Walterhouse, MDChicago, IL 606141265491062
  14. Amy Walz, M.D.Chicago, IL 606111043452436
  15. Joanna Weinstein, MDChicago, IL 606111699724385
  16. Rachel WerkChicago, IL 606111316400658
  17. Alexis Williams, MDChicago, IL 606111710563168
  18. Sara Zarnegar-Lumley, M.D.Chicago, IL 606111831488659
  19. Xiaopei Zeng, MDChicago, IL 606111285175414

Source: CMS NPPES, primary taxonomy 2080P0207X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 24 of 50 per resident

  1. Michigan1.0
  2. Maine1.0
  3. Utah1.0
  4. Illinois0.9
  5. Iowa0.9
  6. Georgia0.9
  7. 50 states and D.C.1.1

Source: CMS NPPES, primary taxonomy 2080P0207X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

52.1% of these records appear in a Medicare file, against 50.9% 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. Illinois52.1%
  2. United States50.9%

Pediatric Hematology & Oncology Physician records in Illinois, measured

  • In a Medicare file62 of 119 · 52.1% here, 50.9% nationally
  • In the CMS Doctors and Clinicians file44 · 37.0% here, 31.2% nationally
  • Not updated in five years or more39 · 32.8% here, 54.5% nationally
  • Median graduation year2005 · the 44 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2080P0207X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

119 NPPES records list pediatric hematology & oncology physician (2080P0207X) as their primary taxonomy with a practice address in Illinois: 0.9 per 100,000 residents against 1.1 nationally (50 states and D.C.). Chicago has 85 of them (71%).

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. Washington103
  2. Michigan102
  3. Georgia101
  4. Missouri99

States with a similar rate per 100,000

  1. Iowa0.9
  2. Utah1.0
  3. Maine1.0
  4. Alabama0.9

The largest states

  1. California417
  2. Texas319
  3. New York289
  4. Pennsylvania218
  5. Massachusetts197

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.