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 115 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. Sifatur Sayeed, M.D.Aurora, IL 605061659394476
  2. Nanzeen Sayef, M.D.Chicago, IL 606161003827411
  3. Ashutosh SayenjuEvanston, IL 602021053295386
  4. Chaden Sbai, M.D.Tinley Park, IL 604771992704100
  5. Anthony Scavone, D.O.Winfield, IL 601901548670623
  6. David Schaefer, D.O.Chicago, IL 606121841466570
  7. Eric Schaefer, M.D.Chicago, IL 606111205915550
  8. Kimberly Schaefer, MDHighland Park, IL 600351811980303
  9. Ronald Schaefer, M.D.Sheridan, IL 605511366644502
  10. Christine Schaeffer, MDChicago, IL 606111124055835
  11. Gary Schaffel, M.D.Lake Forest, IL 600451336123884
  12. Rodney Schainis, M.D.Melrose Park, IL 601601518021245
  13. Timothy Schainker, M.D.Oak Park, IL 603021093125502
  14. Elizabeth Scharle, MDChicago, IL 606111689967234
  15. David Schatz, MDOak Park, IL 603021962497925
  16. Jeffrey Schechtman, MDNorth Chicago, IL 600641710398540
  17. David Scheiner, M.D.Chicago, IL 606531477660371
  18. Murray Scheinman, MDChicago, IL 606401467461921
  19. Samuel Schellenberg, MDChicago, IL 606111558975979
  20. Jane Schetter, DOChicago, IL 606121740177823
  21. Scott Schieber, M.D.Orland Park, IL 604671417971797
  22. Robert Schiff, MDMaywood, IL 601531689648578
  23. David Schimel, M.D.Northbrook, IL 600621902134190
  24. Marie Schlentz, D.O.Chicago, IL 606081710947601
  25. Lesley Schmaltz, M.D.Chicago, IL 606121780944256
  26. Philip Schmidt, M.D.Chicago, IL 606111376837211
  27. Brian Schmitt, M.D.Naperville, IL 605631891805263
  28. Steven Schmitz, MDDowners Grove, IL 605151720056302
  29. Juli Schneider, M.D.Peoria, IL 616371942384649
  30. Mark Schneider, MDRockford, IL 611071265464895
  31. Claire Schnell, M.D.Maywood, IL 601531306296173
  32. Emma Schnittka, DOMaywood, IL 601531811756059
  33. Paige Scholer, MDChicago, IL 606091154827806
  34. Jefferson Schott, MDHighland Park, IL 600351811927221
  35. Lawrence Schouten, MDCarol Stream, IL 601881699770164
  36. Mary Schraufnagel, MDRiver Forest, IL 603051548214539
  37. Adam Schriedel, M.D.Naperville, IL 605401386815504
  38. Sandra SchroderHuntley, IL 601421225906662
  39. Robert Schubert, M.D.Joliet, IL 604351245236363
  40. Robert Schubert, M.D.Joliet, IL 604351972537884
  41. Steven Schubert, M.D.Vernon Hills, IL 600611255321543
  42. Charlotte Schuchart, M.D.Champaign, IL 618221659389393
  43. Jennifer Schulte, M.D.Chicago, IL 606121861841934
  44. Anne Schultz, MDWestmont, IL 605591346223922
  45. Thatiana Schulze Goni, MD, MMS, MHSChicago, IL 606591922606193
  46. Melissa Schumacher, MDWheaton, IL 601891790230787
  47. James Schutzenhofer, MDCentralia, IL 628011851392229
  48. Verne Schwager, M.D.Arlington Heights, IL 600051194845131
  49. Lori Schwarcz, MDEvanston, IL 602081184710246
  50. Brent Schwarm, M.D.Vandalia, IL 624711932104296

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.