NPPES file of Aug 9, 2026

Radiation Oncology Physician in Illinois

277 NPPES records list radiation oncology physician with a practice address in Illinois, 2.2 per 100,000 residents, the 18th highest rate of 51. Chicago and Maywood have the most; each record links to the provider's NPI and the Illinois license search. Page 3 of 6.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2085R0001X · 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, 89

  1. Chicago89
  2. Maywood16
  3. Springfield13
  4. Rockford9
  5. Oak Lawn8

Radiation Oncology Physician records in Illinois

  1. Alexander Ho, MDChicago, IL 606111245713650
  2. Timothy Hollister, MDWilmette, IL 600911669528428
  3. Stanley Hoover, M.D.Chicago, IL 606111710952569
  4. Andrew HowardChicago, IL 606371942252432
  5. Daniel Huang, MDChicago, IL 606371619543964
  6. Zaid Iftekaruddin, MDWarrenville, IL 605551437611761
  7. Joseph Imperato, M.D.Lake Forest, IL 600451346215183
  8. Farris Jaamour, MD, MPHChicago, IL 606371609610872
  9. Prachi Jain, M.D.Springfield, IL 627811326333626
  10. Robert Johnson, MDQuincy, IL 623011053308825
  11. Nikhil Joshi, M.D.Chicago, IL 606071851722250
  12. Aditya Juloori, MDChicago, IL 606371952714636
  13. Neelima Kabre, MDGeneva, IL 601341023096294
  14. Kapila Kalakota, M.D.Hinsdale, IL 605211841428281
  15. John Kalapurakal, M.D.Chicago, IL 606111780659748
  16. Hyuk Kang, MDOak Lawn, IL 604531174505291
  17. Rohan Katipally, MDChicago, IL 606371689168205
  18. Christy Kesslering, M.D.Warrenville, IL 605551427049543
  19. Samar Khan, MSMaywood, IL 601531588321707
  20. Michael Kharouta, MDChicago, IL 606571336670322
  21. Mark Khil, M.D.Quincy, IL 623011851398598
  22. Nam Kim, MDChicago, IL 606401285625202
  23. Thomas Kim, M.D.Chicago, IL 606121932466208
  24. Yoon Kim, M.D.Winnetka, IL 600931083047146
  25. Sophia Kim-Wang, MD, PHDChicago, IL 606371205531092
  26. John KimballChicago, IL 606371972066199
  27. Kevin King, M.D.Chicago, IL 606111053816785
  28. Nagendra Koneru, M.D.Maywood, IL 601531508989260
  29. Mark Korpics, MDChicago, IL 606121407382526
  30. Matthew Koshy, MDChicago, IL 606371568506103
  31. Thomas Kotsonis, MDMaywood, IL 601531982347431
  32. Paul Kreinbrink, M.D.Lisle, IL 605321073044640
  33. Parvathy Kurup, MDGurnee, IL 600311578554911
  34. Marina Kuznetsova, M.D.Bourbonnais, IL 609141265545271
  35. Susan Laduzinsky, MDShiloh, IL 622691942202155
  36. Roby Lal, DOPeoria, IL 616361811983489
  37. Andrew Lee, M.D.Barrington, IL 600101407118359
  38. Ham Lee, MDOak Lawn, IL 604531316929177
  39. Jason Lee, MDShiloh, IL 622691851618995
  40. Stanley LiauwChicago, IL 606371922011790
  41. Vasudha Lingareddy, MDAurora, IL 605041427083393
  42. Michael Little, M.D.Carterville, IL 629181093915902
  43. Philip Lobo, M.D.Arlington Heights, IL 600051124003967
  44. Joshua Lorenz, MDChicago, IL 606121568921898
  45. Kevin Lui, MDPeoria, IL 616371043779978
  46. Samia Luka, MDJoliet, IL 604321255312971
  47. Connor Lynch, MDChicago, IL 606371114382355
  48. Bryan Macrie, M.D.Elgin, IL 601231710299946
  49. Saleem Mahmood, MDLitchfield, IL 620561679677678
  50. Renuka MalikChicago, IL 606371942473525

Source: CMS NPPES, primary taxonomy 2085R0001X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 18 of 51 per resident

  1. Florida2.3
  2. New York2.3
  3. Connecticut2.3
  4. Illinois2.2
  5. Missouri2.2
  6. Vermont2.2
  7. 50 states and D.C.2.1

Source: CMS NPPES, primary taxonomy 2085R0001X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

78.0% of these records appear in a Medicare file, against 82.3% 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. Illinois78.0%
  2. United States82.3%

Radiation Oncology Physician records in Illinois, measured

  • In a Medicare file216 of 277 · 78.0% here, 82.3% nationally
  • In the CMS Doctors and Clinicians file184 · 66.4% here, 74.0% nationally
  • Not updated in five years or more136 · 49.1% here, 54.6% nationally
  • Median graduation year2004 · the 184 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2085R0001X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

277 NPPES records list radiation oncology physician (2085R0001X) as their primary taxonomy with a practice address in Illinois: 2.2 per 100,000 residents against 2.1 nationally (50 states and D.C.). Chicago has 89 of them (32%).

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. Ohio298
  2. Massachusetts241
  3. Michigan239
  4. North Carolina230

States with a similar rate per 100,000

  1. Missouri2.2
  2. Vermont2.2
  3. Connecticut2.3
  4. New York2.3

The largest states

  1. California735
  2. Florida520
  3. New York449
  4. Texas449
  5. Pennsylvania383

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.