NPPES file of Aug 9, 2026

Gastroenterology Physician in Illinois

887 NPPES records list gastroenterology physician with a practice address in Illinois, 7.1 per 100,000 residents, the 11th highest rate of 51. Chicago and Maywood have the most; each record links to the provider's NPI and the Illinois license search. Page 5 of 18.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RG0100X · 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, 278

  1. Chicago278
  2. Maywood41
  3. Rockford25
  4. Springfield25
  5. Aurora23

Gastroenterology Physician records in Illinois

  1. Nirmal Desai, MDMaywood, IL 601531104447572
  2. Rahil Desai, DONiles, IL 607141679216113
  3. Vishal Desai, M.D.Chicago, IL 606111104189661
  4. Thomas Deweert, MDNormal, IL 617611073560751
  5. Hosep Deyrmenjian, M.D.Gurnee, IL 600311710979729
  6. Manish Dhamija, M.D.Chicago, IL 606571699977413
  7. Ilysa Diamond, DOOak Park, IL 603011356596332
  8. Gloria Diaz, MDPeoria, IL 616041639168222
  9. Jacob Dibattista, MDNaperville, IL 605401992263347
  10. Richard Dilorenzo, DODecatur, IL 625211528090164
  11. Geetha Dodda, MDPrinceton, IL 613561528056181
  12. Meghana Doniparthi, M.DGlenview, IL 600261861854697
  13. Edward Doran, MDPrinceton, IL 613561285622340
  14. Jennifer Dorfmeister, M.D.Elgin, IL 601231710135876
  15. Stavros Doumas, MDChicago, IL 606111396312682
  16. James Draguesku, M.D.Palos Heights, IL 604631225003411
  17. Karen Draper, M.D.Champaign, IL 618221861791261
  18. Mark Dubin, M.D.Hoffman Estates, IL 601691245202704
  19. Parambir Dulai, M.B.B.SChicago, IL 606111811214364
  20. Julia Dyer, M.D., M.P.H.Chicago, IL 606021871575654
  21. Ioannis Economou, M.D.Glenview, IL 600261194935494
  22. Charmaine Edwards, M.D.Red Bud, IL 622781972586253
  23. Matthew Eganhouse, MDChicago, IL 606121265091334
  24. Maria El Gemayel, MDChicago, IL 606121306520309
  25. Imad Elkhatib, M.DOak Lawn, IL 604531326204991
  26. Adily Elmi, MDChicago, IL 606121528716933
  27. Victor Eloy, MDDecatur, IL 625261942232558
  28. Juan Engel, MDNiles, IL 607141225122393
  29. Jonathan Erlich, M.D.Chicago, IL 606311265796429
  30. Daniel Errampalli, M.D.Bourbonnais, IL 609141689662975
  31. Paul Fahrenbach, MDChicago, IL 606311699768416
  32. Jan Faibisoff, M.D.Skokie, IL 600761215961289
  33. Marc Fallah, MDNaperville, IL 605401750356804
  34. Domenico FarinaChicago, IL 606111043665060
  35. Alisa Farokhian, MDMaywood, IL 601531326603556
  36. Ofer Fass, MDChicago, IL 606111154856714
  37. Nolan Faust, MDChicago, IL 606251124511555
  38. Mohammad Fayyaz, MDChicago, IL 606121992731616
  39. Mark Fedder, MDMaryville, IL 620621922009943
  40. Axel Feller, MDNorth Chicago, IL 600641932211919
  41. Laura Fernandez Morales, MDEvanston, IL 602011417535469
  42. Maria Ferreira, MDChicago, IL 606111194755421
  43. Natalia Filipek, MDEvanston, IL 602011891310090
  44. Claus Fimmel, MDNorthbrook, IL 600621568417780
  45. Marc Fine, MDNiles, IL 607141720172729
  46. Robin Fintel, M.D.Chicago, IL 606111023083250
  47. Steven Flamm, MDChicago, IL 606111912937244
  48. Michael Flicker, M.D.Chicago, IL 606571730375627
  49. James Frakes, M.D., M.S.Rockford, IL 611071295722569
  50. Joseph Frasca, M.D.Chicago, IL 606121841558533

Source: CMS NPPES, primary taxonomy 207RG0100X: records by practice city and the list of records, file of Aug 9, 2026.

Illinois ranks 11 of 51 per resident

  1. Minnesota8.0
  2. New Jersey7.9
  3. New Hampshire7.8
  4. Illinois7.1
  5. Washington6.8
  6. Florida6.7
  7. 50 states and D.C.6.2

Source: CMS NPPES, primary taxonomy 207RG0100X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

85.3% of these records appear in a Medicare file, against 84.4% 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. Illinois85.3%
  2. United States84.4%

Gastroenterology Physician records in Illinois, measured

  • In a Medicare file757 of 887 · 85.3% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file643 · 72.5% here, 73.7% nationally
  • Not updated in five years or more436 · 49.2% here, 55.6% nationally
  • Median graduation year2003 · the 643 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RG0100X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

887 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in Illinois: 7.1 per 100,000 residents against 6.2 nationally (50 states and D.C.). Chicago has 278 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. Ohio741
  2. New Jersey735
  3. Pennsylvania1,049
  4. Massachusetts686

States with a similar rate per 100,000

  1. Washington6.8
  2. Florida6.7
  3. Missouri6.7
  4. Oregon6.6

The largest states

  1. California2,140
  2. New York1,797
  3. Florida1,513
  4. Texas1,478
  5. Pennsylvania1,049

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.