NPPES file of Aug 9, 2026

Internal Medicine Physician in Illinois

7,238 NPPES records list internal medicine physician with a practice address in Illinois, 58 per 100,000 residents, the 9th highest rate of 51. Chicago and Maywood have the most; each record links to the provider's NPI and the Illinois license search. Page 81 of 145.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · 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, 2,867

  1. Chicago2,867
  2. Maywood257
  3. Springfield196
  4. Evanston178
  5. Oak Lawn173

Internal Medicine Physician records in Illinois

  1. Brendan McQuillen, MDChicago, IL 606121760174924
  2. Ryan McQuillen, M.D.Chicago, IL 606161770826612
  3. Gerald McShanePeoria, IL 616031669553012
  4. Farah Meah, D.O.Chicago, IL 606061518286459
  5. Patrick MeansMaywood, IL 601531386582187
  6. Jana MechurovaWilmette, IL 600911588971766
  7. Brian Medernach, BRIAN MEDERNACHLombard, IL 601481801050539
  8. Frank Medina, MDChicago, IL 606111245179100
  9. Victor Medina, MDKewanee, IL 614431417659160
  10. Rajan Mediratta, MDMaywood, IL 601531447010830
  11. Ruben Medrano, MDMonmouth, IL 614621073509683
  12. Mark Meeker, D. O.Galesburg, IL 614011225139058
  13. Eilaf Meenai, MBBSNorth Chicago, IL 600641417890328
  14. Abdulrahim Yusuf Mehadi, MDChicago, IL 606121477272672
  15. Anna Mehlich, MDChicago, IL 606121588341424
  16. Gaurika Mehra, MDChicago, IL 606221518213537
  17. Sasha MehrabianChicago, IL 606571750870390
  18. Ankit Mehta, M.D.Chicago, IL 606611487810792
  19. Rishi Mehta, MDMaywood, IL 601531609175066
  20. Sonia Mehta, M.D.Crystal Lake, IL 600141265459895
  21. Supal Mehta, MDPark Ridge, IL 600681578142014
  22. Twinkle Mehta, MDChicago, IL 606121649105529
  23. Calvin Meineke, MDOak Park, IL 603011184727539
  24. Joseph Meisenbach, MDKankakee, IL 609011689622250
  25. Robert Meister, M.D.Peoria, IL 616141114992229
  26. Jairo Mejia, M.D.Chicago, IL 606081952361164
  27. Rodolfo Mejicano, MDOrland Park, IL 604621932107430
  28. Sudeepthi Reddy Mekala, MDChicago, IL 606121578258166
  29. Margo MekjianChicago, IL 606121417656224
  30. Julia Melamed, M.D.Deerfield, IL 600151235217373
  31. Derek Melby, DOSouth Holland, IL 604731033266473
  32. Andrew Melchioris, MD, MBAChicago, IL 606121003655119
  33. Dawn Mellish, MDRockford, IL 611021154306082
  34. Ramesh Melvani, MDLa Grange Park, IL 605261982769980
  35. Burhan Memon, MDChicago, IL 606571205488293
  36. Mohammad Memon, D.OArlington Heights, IL 600051578191698
  37. Muhammad Memon, MDCairo, IL 629141467571497
  38. Saadia Memon, M.D.Oak Lawn, IL 604531194920884
  39. Katie Mena, M.D.Chicago, IL 606121790001329
  40. Alexis Mena Penafiel, MDRiverside, IL 605461952291726
  41. Gabriela Mendez, MDChicago, IL 606121952976250
  42. Rohini Mendonca, MDChicago, IL 606571346420304
  43. Julio Mendoza Estrada, DOSpringfield, IL 627021609515519
  44. Concetta Mennella, M.D.Chicago, IL 606121033428388
  45. Abhinav MenonMaywood, IL 601531629562137
  46. Abaan MerchantChicago, IL 606571023868957
  47. Fatema Merchant, MDChicago, IL 606111649224122
  48. Monica Mercon Tezolin Barros Almeida, M.D.Chicago, IL 606121437411659
  49. Patricia Merlo, D.O.Elgin, IL 601231972501161
  50. Marina Messinger, M.D.Rolling Meadows, IL 600081902192677

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 9 of 51 per resident

  1. Hawaii63
  2. New York62
  3. Delaware58
  4. Illinois58
  5. Michigan57
  6. Pennsylvania56
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

72.5% of these records appear in a Medicare file, against 78.7% 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. Illinois72.5%
  2. United States78.7%

Internal Medicine Physician records in Illinois, measured

  • In a Medicare file5,251 of 7,238 · 72.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file3,584 · 49.5% here, 61.4% nationally
  • Not updated in five years or more3,434 · 47.4% here, 55.4% nationally
  • Median graduation year2003 · the 3,580 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

7,238 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Illinois: 58 per 100,000 residents against 44 nationally (50 states and D.C.). Chicago has 2,867 of them (40%).

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. Pennsylvania7,300
  2. Massachusetts6,825
  3. Michigan5,735
  4. Texas9,175

States with a similar rate per 100,000

  1. Delaware58.1
  2. New York61.7
  3. Hawaii62.9
  4. Maryland63.2

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

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.