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 78 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. Namratha Mapakshi, M.DChicago, IL 606571972738235
  2. Renan Mapue, MDCarrollton, IL 620161205002052
  3. Asia Maqbool, M.DLong Grove, IL 600471992187397
  4. Maham Maqsood, MBBSUrbana, IL 618011861375784
  5. Spencer Maranto, MDChicago, IL 606111821982703
  6. Hernan Marcos, MDChicago, IL 606121134746142
  7. Wendi Marcus, M.D.Buffalo Grove, IL 600891548249113
  8. Fareed Mardani, M.DSpringfield, IL 627691336303775
  9. Ahmad MardiniOak Lawn, IL 604531902547201
  10. Gideon Maresky, MDChicago, IL 606121760544506
  11. Mark Marfin, MDMaywood, IL 601531033811666
  12. Natasa Margeta, M.D.Chicago, IL 606571265691125
  13. Camelia Marian, MDAlgonquin, IL 601021851451132
  14. Nevenka Maric, MDChicago, IL 606121326086265
  15. Sara Marin, MDChicago, IL 606121932762978
  16. Shadi Marina, M.D.Rockford, IL 611041972764041
  17. Carol Marinch, M.D.Deerfield, IL 600151326270513
  18. Sarah Marini, MDChicago, IL 606111689379513
  19. Christopher Markelz, DOPark Ridge, IL 600681225831456
  20. Jules Marks, D.O.Buffalo Grove, IL 600891346228814
  21. Kellyn Marks, M.D.Chicago, IL 606111215973599
  22. Demetrios Maroutsos, MDEvanston, IL 602011821841495
  23. Mitchell Marques, MDChicago, IL 606121558103150
  24. Areeba Marrium, MDOlympia Fields, IL 604611497498745
  25. Douglas Marshall, M.D.Morton, IL 615501477569499
  26. Elizabeth Marshall, M.D.Park Ridge, IL 600681225666902
  27. Thomas Marshall, M.D.Glen Ellyn, IL 601371043202054
  28. Beth Marshall-Bergman, D.O.Chicago, IL 606061962791657
  29. Jennifer Marsidi, DOChicago, IL 606121275713588
  30. Benjamin Martell Lazo, MDChicago, IL 606571912744434
  31. Leonardo-Francesco Marti-Roy, MDChicago, IL 606121285302653
  32. Annia Martial, M.D.Peoria, IL 616371184039398
  33. Christopher Martin, MDPeoria, IL 616371043285315
  34. Gary Martin, MDChicago, IL 606111356359756
  35. Joanna Martin, M.D.Chicago, IL 606421063523975
  36. Lynn Martin, MDGlenview, IL 600251003975558
  37. Monica Martin, MDDowners Grove, IL 605151881693315
  38. Nancy Martin, M.D., PHARM.D., FCPWilmette, IL 600911861658676
  39. Perry Martin, M.D.Chicago, IL 606121962732586
  40. Shannon MartinChicago, IL 606371316100902
  41. Alysia Martin GarciaBerwyn, IL 604021124830690
  42. Enrique Martinez, M.D.Chicago, IL 606121629008933
  43. Heriberto Martinez, M.D.Cicero, IL 608041336115294
  44. Irene Martinez, MDChicago, IL 606121639100415
  45. Ruben MartinezOak Lawn, IL 604531558111351
  46. Sybila Martinez Chapa, M.D.Chicago, IL 606571992230015
  47. Isabel Martinez Daniel, MDMaywood, IL 601531477355337
  48. Ian Martinez FloresChicago, IL 606121356821649
  49. David Martinez Marin, MDChicago, IL 606121275272726
  50. Enrique Martinez Trevino, M.D.Normal, IL 617611477291177

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.