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 4 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. Rick Chadha, M.D.Palos Heights, IL 604631992770598
  2. Soojong Chae, MDGlenview, IL 600261174716500
  3. Yui Chan, M.D.Chicago, IL 606161679625289
  4. Eugene Chang, MDBurr Ridge, IL 605271346302890
  5. Stephen Chang, MDChicago, IL 606111770695793
  6. Christopher Chapman, M.D.Chicago, IL 606071235378043
  7. Anshuman Chawla, M.D.Downers Grove, IL 605151841276417
  8. Chaudry Ahmad Cheema, M.D.Rock Island, IL 612011659375343
  9. Navdeep Chehl, M.D.Naperville, IL 605401730475534
  10. Dennis Chen, MDChicago, IL 606371467715235
  11. Alice Cheng, MDChicago, IL 606371093079550
  12. Jennifer ChennatChicago, IL 606541811077720
  13. Sailaja Cheruku, M.D.Springfield, IL 627031578659496
  14. Kenneth Chi, MDGlenview, IL 600261821070939
  15. Howard Chodash, M.D.Effingham, IL 624011295720027
  16. Tenzin Choden, M.D.Chicago, IL 606371609261296
  17. Dabin Choi, MDChicago, IL 606121558949321
  18. Bradford Chong, M.D.Chicago, IL 606371164886479
  19. Ashish Chopra, M.D.Springfield, IL 627031497727234
  20. Poonputt Chotiprasidhi, M.D.Moline, IL 612651558363713
  21. Britt Christensen, M.DChicago, IL 606371205264389
  22. Nikos Christopoulos, MDArlington Heights, IL 600041881708444
  23. David Chua, MDOakbrook Terrace, IL 601811346241585
  24. Kenechukwu Chudy-Onwugaje, M.D.Belleville, IL 622261861749780
  25. Sinha Chunduri, M.D.Melrose Park, IL 601601891866067
  26. Phillip Chung, MDNorthbrook, IL 600621639165947
  27. James Clark, M.D.Downers Grove, IL 605151588640650
  28. Robert Clark, MDBloomington, IL 617041033372727
  29. Noa ClevelandChicago, IL 606371568844223
  30. Emaree Cobb, MDChicago, IL 606371407484587
  31. Greg Cohen, M.D.Chicago, IL 606111669447348
  32. Nathaniel Cohen, MDChicago, IL 606371023624988
  33. Russell CohenChicago, IL 606371336201888
  34. Aaron Cohn, M.D.Grayslake, IL 600301841586211
  35. Thomas Couri, M.D.Naperville, IL 605401619357639
  36. Dale Coy, M.D.Lake Barrington, IL 600101770578858
  37. Thomas Cullins, M.D.Chicago, IL 606191295765485
  38. Obada Daaboul, MDSpringfield, IL 627021700579653
  39. Nader Dababneh, M.D.Carbondale, IL 629011821065392
  40. Suzanne Daly, M.D.Maywood, IL 601531780770446
  41. Mark Daniels, M.D.Naperville, IL 605401043215718
  42. Michael Dastice, MDOak Lawn, IL 604531952358939
  43. Robin David, MDNiles, IL 607141588291546
  44. Altaf Dawood, M.D.Rockford, IL 611031295034759
  45. Lesley Dawravoo, M.D.Maywood, IL 601531588820781
  46. John Deguide, M.D.Rockford, IL 611071538156948
  47. Nimrod Deiss-Yehiely, MDChicago, IL 606371225525462
  48. Mary Dement, DOElgin, IL 601231619437738
  49. Mark Demeo, M.D.Chicago, IL 606121972549327
  50. Melchor Demetria, M.D.Chicago, IL 606121316951304

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.