NPPES file of Aug 9, 2026

Rheumatology Physician in Illinois

340 NPPES records list rheumatology physician with a practice address in Illinois, 2.7 per 100,000 residents, the 12th highest rate of 51. Chicago and Springfield have the most; each record links to the provider's NPI and the Illinois license search. Page 4 of 7.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RR0500X · 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, 107

  1. Chicago107
  2. Springfield16
  3. Evanston14
  4. Champaign10
  5. Rockford10

Rheumatology Physician records in Illinois

  1. Pim Jetanalin, M.D.Chicago, IL 606121871785667
  2. Sunil John, MDOrland Park, IL 604671427154665
  3. Bruce Johnson, MDElk Grove Village, IL 600071912043621
  4. Meenakshi Jolly, M.D.Chicago, IL 606121316970015
  5. Brinda Joshi, DONaperville, IL 605631134390750
  6. Charles Kahn, M.D.Glenview, IL 600251881787505
  7. Jacqueline Kannan, M.D.McHenry, IL 600501588058606
  8. Robert Katz, M.D.Chicago, IL 606121790875797
  9. Fariha Kausar, MDOrland Park, IL 604621629035670
  10. Raymond Kazmar, M.D.Olympia Fields, IL 604611255373197
  11. William Kcomt, M.D.La Grange, IL 605251710989587
  12. Gowhar Khan, MDAurora, IL 605061518917673
  13. Mariam Khan, MDElmhurst, IL 601261225317464
  14. Mehwish Khan, M.D.Champaign, IL 618221689804981
  15. Sonali Khandelwal, M.D.Chicago, IL 606121871773291
  16. Kathryn Kiehn, M.D.Lake Forest, IL 600451700834348
  17. Joon Kim, MD PHDGrayslake, IL 600301730173030
  18. Kichul KoChicago, IL 606371649472440
  19. Manoj Kohli, MDDecatur, IL 625211215948146
  20. Rediet Kokebie, MDChicago, IL 606161861728677
  21. Ami Kothari, M.D.Morton Grove, IL 600531194981100
  22. Ladonna Koziol, M.D.Arlington Heights, IL 600051730127978
  23. Stephen Kozlowski, M.D.Crystal Lake, IL 600141285749390
  24. Usharani Kumar, M.D.Moline, IL 612651275511974
  25. Lawrence Layfer, M.D.Chicago, IL 606121235162835
  26. Yvonne Lee, M.D., MMSC.Chicago, IL 606111427006402
  27. Ramier Lehne, DOElmhurst, IL 601261023513173
  28. Timothy Lenardo, M.D.Springfield, IL 627021598873499
  29. Yongsuk Lertratanakul, MDChicago, IL 606571215935663
  30. George Liang, MDChicago, IL 606111639284524
  31. Francis Lichon, MDNaperville, IL 605401437379435
  32. Lee Lichtenberg, MDGeneva, IL 601341134106008
  33. Clarice Lin, MDChicago, IL 606111669051777
  34. Pin Lin, MDWinfield, IL 601901770699381
  35. Shriram Lokare, M.D.Peoria, IL 616021497057905
  36. Michael Lopker, M.D., PH.D.Chicago, IL 606111730535998
  37. Michael Macklin, M.D.Chicago, IL 606371194287185
  38. David Mael, M.D.Chicago, IL 606571134152739
  39. Mary Mahieu, M.D.Chicago, IL 606111811218381
  40. Farzan Mahmood, M.DNaperville, IL 605401841484961
  41. Darcy Majka, MDWestmont, IL 605591831206580
  42. Elly Mak, M.D.Lincolnwood, IL 607121750461281
  43. Anastacia Maldonado, MDChampaign, IL 618211831279744
  44. Ali Malick, M.D.Galena, IL 610361891707923
  45. Aarti Malik, MDEvanston, IL 602011801950852
  46. Augustine Manadan, M.D.Chicago, IL 606121508881871
  47. Arthur Mandelin, MD/PHDChicago, IL 606111669655569
  48. Maryah Mansoor, MDPeoria, IL 616031659684777
  49. Walter Marbach, MDCrestwood, IL 604451891703591
  50. Kenneth Margules, MDLibertyville, IL 600481063403145

Source: CMS NPPES, primary taxonomy 207RR0500X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 12 of 51 per resident

  1. Vermont2.8
  2. Rhode Island2.7
  3. New Jersey2.7
  4. Illinois2.7
  5. Wisconsin2.6
  6. Washington2.6
  7. 50 states and D.C.2.4

Source: CMS NPPES, primary taxonomy 207RR0500X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

82.6% of these records appear in a Medicare file, against 81.6% 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. Illinois82.6%
  2. United States81.6%

Rheumatology Physician records in Illinois, measured

  • In a Medicare file281 of 340 · 82.6% here, 81.6% nationally
  • In the CMS Doctors and Clinicians file244 · 71.8% here, 69.5% nationally
  • Not updated in five years or more200 · 58.8% here, 56.6% nationally
  • Median graduation year2003 · the 244 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RR0500X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

340 NPPES records list rheumatology physician (207RR0500X) as their primary taxonomy with a practice address in Illinois: 2.7 per 100,000 residents against 2.4 nationally (50 states and D.C.). Chicago has 107 of them (31%).

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. Massachusetts343
  2. Ohio289
  3. Pennsylvania413
  4. New Jersey253

States with a similar rate per 100,000

  1. Puerto Rico2.7
  2. Rhode Island2.7
  3. Vermont2.8
  4. Wisconsin2.6

The largest states

  1. California926
  2. New York599
  3. Texas545
  4. Florida494
  5. Pennsylvania413

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.