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 16 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. Susanne Shokoohi, M.D.Maywood, IL 601531336438456
  2. Asim Shuja, M.D.Chicago, IL 606121689938938
  3. Dmitry Shuster, M.D.Springfield, IL 627031053623504
  4. Daanish SiddiqueHazel Crest, IL 604291134613094
  5. Hadi Siddiqui, D.O., M.P.H.Morris, IL 604501639361413
  6. Nadeem Siddiqui, MDMcHenry, IL 600501770577785
  7. Uzma SiddiquiChicago, IL 606371013990399
  8. Amanda Siegel, MDMaywood, IL 601531780075069
  9. John Siegfried, MDAurora, IL 605061942314612
  10. Dean Silas, MDNiles, IL 607141093809089
  11. Rogelio Silva, M.D.Oak Lawn, IL 604531962493064
  12. Carlos Roberto Simons Linares, M.D.Maywood, IL 601531588072938
  13. Ajaypal Singh, M.B.B.S.Chicago, IL 606121568696409
  14. Nidhi Singh, M.D.Chicago, IL 606111356501373
  15. Shubha Singh, M.D.Oak Park, IL 603011538397617
  16. Jasmine Sinha, MD MPHChicago, IL 606111730506718
  17. Lalitha Sitaraman, MDChicago, IL 606371184918294
  18. Matthew Smith, M.D.Oakbrook Terrace, IL 601811508973926
  19. Richard Smith, M.D.Springfield, IL 627031720176134
  20. Clinton Snedegar, M.D.Rockford, IL 611071669413522
  21. Angelo So Taa Kum, MD, MSCChicago, IL 606371790620037
  22. Richard Song, M.D.Hoffman Estates, IL 601691710011416
  23. Abdus Soudagar, M.D.Bolingbrook, IL 604401043447774
  24. Lidia Spaho, M.D.Winfield, IL 601901124414859
  25. Chad Spangler, M.D.Lake Barrington, IL 600101073625562
  26. Jennifer Spanier-Stiasny, DOGurnee, IL 600311235341587
  27. Marshall Sparberg, M.D.Chicago, IL 606111700852571
  28. Susannah Spiess, MDGlenview, IL 600261427076082
  29. Michael Sprang, MDEvanston, IL 602011326012212
  30. Tilemahos Spyratos, D.O.Olympia Fields, IL 604611295055291
  31. Amit Srivastava, M.D.Riverside, IL 605461770521510
  32. Aniruddha Srivastava, MDChicago, IL 606111124778253
  33. Joelle St-Pierre, MDChicago, IL 606371588347751
  34. George Stathopoulos, MDElmhurst, IL 601261740231828
  35. Adam Stein, M.D.Chicago, IL 606111962667956
  36. Stephen Steiner, M.D.Chicago, IL 606571023102951
  37. Christian Stevoff, MDChicago, IL 606111437182979
  38. James Stinneford, MDElgin, IL 601231407968514
  39. Jessica Strzepka, MDChicago, IL 606121861015976
  40. Herman Suga, DOChicago, IL 606121740761667
  41. Jane Suh, M.D.Chicago, IL 606121235510447
  42. Patricia Sun, M.D.Arlington Heights, IL 600051366626426
  43. Wei Sun, M.D.Elgin, IL 601231164487450
  44. Talal Sunbulli, MDOak Lawn, IL 604531538115175
  45. David Sutherland, M.D.Bourbonnais, IL 609141619976909
  46. Garth Swanson, M.D.Chicago, IL 606121538335385
  47. Philip Sweeney, MDHinsdale, IL 605211225038920
  48. Abdul Swied, MDSpringfield, IL 627021033642509
  49. Gregory Szych, DOHerrin, IL 629481841268521
  50. Francisco Tagle, MDMaryville, IL 620621588323356

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.