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 6 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. Adrienne Fregia, MDOlympia Fields, IL 604611477653111
  2. Yichun FuChicago, IL 606371568922359
  3. John Gaetano, M.D.Grayslake, IL 600301588977722
  4. Gregory Gambla, DOElgin, IL 601231801832167
  5. Anuhya Gampa, M.D.Evanston, IL 602011588045165
  6. Seema Gandhi, MDChicago, IL 606121710154240
  7. Shiban Ganju, M.D.Homewood, IL 604301477583532
  8. Kanika Garg, MDChicago, IL 606121225520083
  9. Darrien Gaston, M.D.Chicago, IL 606431023234143
  10. Andrew Gawron, M.D., PH.D., M.S.Chicago, IL 606111447412903
  11. Paul Gekas, M.D.Geneva, IL 601341467450650
  12. Nicole Gentile, MDLake Barrington, IL 600101417241944
  13. Alvin George, MDChicago, IL 606371023633138
  14. Jonelle George, D.O.Maywood, IL 601531700226693
  15. Yasmin GeraisChicago, IL 606571669026084
  16. David Gerard, M.D.Downers Grove, IL 605151942312210
  17. Marcel Ghanim, MDOak Lawn, IL 604531407387061
  18. Keikhosrow Ghazanfari, MDChicago, IL 606571831188747
  19. Elie Ghoulam, MDQuincy, IL 623011699216887
  20. Aiman Ghufran, M.D.Chicago, IL 606121023320637
  21. Ophir Gilad, MDChicago, IL 606371114715596
  22. Richard Gilmore, MDRockford, IL 611031598875783
  23. Walter Glaws, D OGurnee, IL 600311104828532
  24. Robert Glickenberger, MDSpringfield, IL 627021407966690
  25. Lawrence Gluskin, MDChicago, IL 606571235109711
  26. Benjamin Go, M.D.Chicago, IL 606121982624946
  27. Sonia Godambe, M.D.Elgin, IL 601231093964116
  28. Michelle Godbee, MD, MPHWinfield, IL 601901720573652
  29. Ernesto Godoy-Romero, MDAurora, IL 605061124051198
  30. Ram Goel, MDPeru, IL 613541255387007
  31. Aaron GoffinetChicago, IL 606121063114395
  32. Michael Goldberg, MDEvanston, IL 602011134159064
  33. Melvin Goldstein, M.D.Chicago, IL 606111376531400
  34. Nirmala Gonsalves, MDChicago, IL 606111326038712
  35. Dafna Gordon, M.D.Lake Barrington, IL 600101679569388
  36. Jatinder Goyal, MDOrland Park, IL 604621760772925
  37. Anthony Grande, MDMcHenry, IL 600501477558377
  38. Richard Green, MDChicago, IL 606111770511404
  39. Bruce Greenberg, M.D.Arlington Heights, IL 600051104817279
  40. Eugene Greenberg, MDUrbana, IL 618011396769584
  41. Roger Greenlaw, M.D.Rockford, IL 611071699761890
  42. Michael Greenspan, MDElmhurst, IL 601261942520127
  43. Angela Gregor, PA-CChicago, IL 606601487126256
  44. Theodor Griggs, M.D., PH.D.Chicago, IL 606121124559463
  45. Stephen Grill, M.D.Oakbrook Terrace, IL 601811366559858
  46. James Gross, MDGrayslake, IL 600301497733851
  47. Daniel Gryzlo, MDMaywood, IL 601531346723616
  48. Dhiraj Gulati, MDWinfield, IL 601901598920274
  49. Sushama Gundlapalli, M.D.Naperville, IL 605401568401529
  50. Harsh Gupta, MDEvanston, IL 602021295727436

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.