NPPES file of Aug 9, 2026

Gastroenterology Physician in Michigan

550 NPPES records list gastroenterology physician with a practice address in Michigan, 5.5 per 100,000 residents, the 26th highest rate of 51. Ann Arbor and Detroit have the most; each record links to the provider's NPI and the Michigan license search. Page 11 of 11.

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).

Ann Arbor has the most, 94

  1. Ann Arbor94
  2. Detroit50
  3. Ypsilanti34
  4. Grand Rapids32
  5. Farmington Hills18

Gastroenterology Physician records in Michigan

  1. Nadeem Ullah, MDJackson, MI 492011477592996
  2. Rebecca Vandyke, MDAnn Arbor, MI 481091629157466
  3. Adarsh Varma, M.D.Detroit, MI 482021316147630
  4. Vandana Vedula, MDMt Pleasant, MI 488581922059153
  5. Victor Velocci, M.D.Kalamazoo, MI 490071700131505
  6. Deepak Venkat, M.D.Detroit, MI 482021013133412
  7. Anshu Wadehra, MDLansing, MI 489121124524392
  8. Akbar Waljee, M.D.Ann Arbor, MI 481091780706630
  9. John Walling, DOEast Lansing, MI 488231073579512
  10. John Walsh, M.D.Ypsilanti, MI 481971982684643
  11. Erik Wamsteker, MDAnn Arbor, MI 481091255416863
  12. Jing Wang, MDDetroit, MI 482011538789268
  13. Thomas Wang, MDAnn Arbor, MI 481091831225648
  14. Bradley Warren, D.O.Ypsilanti, MI 481971780604652
  15. Sarah Wasserman, D.O.Portage, MI 490241023303641
  16. Andrew WatsonDetroit, MI 482021295001451
  17. Lucas Watts, D.O.Wyoming, MI 495191558604306
  18. Stephen Watts, MDWyandotte, MI 481921639261506
  19. William Weatherhead, DOOwosso, MI 488671932165347
  20. Curtis Weaver, MDGrand Rapids, MI 495031548382773
  21. William Webb, M.D., PH DPortage, MI 490241790740603
  22. John Weber, MDTroy, MI 480981770568289
  23. Alexander Weick, M.D.Traverse City, MI 496841942542444
  24. Andrew Welch, M.D.Muskegon, MI 494421992812952
  25. Francis Welsh, M.D.Marquette, MI 498551336128578
  26. Kevin Wenzke, M.D.Ypsilanti, MI 481971376961318
  27. Bradford Whitmer, D.O.Saint Clair Shores, MI 480811669636965
  28. Larry Wickless, M.D.Farmington Hills, MI 483361033189071
  29. David Wiedemer, MDEast Lansing, MI 488231538118328
  30. Brandon Wiggins, DO, MPHGrand Blanc, MI 484391689238693
  31. John Wiley, MDAnn Arbor, MI 481091164507778
  32. Richard Wille, MDTroy, MI 480981689656662
  33. Anthony Williams, M.D.Southfield, MI 480751245246354
  34. Ryan Wong, MDGrand Rapids, MI 495461497070718
  35. Allison Wood, DO MPHLansing, MI 489121649438318
  36. Jonathan Xia, MD, PHDAnn Arbor, MI 481091578094918
  37. Tingting Xiong, M.D.Detroit, MI 482021811250665
  38. Julie Yam, D.O.Muskegon, MI 494421891131959
  39. Ali Yazdani, M.D.Ypsilanti, MI 481971578543633
  40. Edward Yousif, MDFarmington Hills, MI 483341336124767
  41. Allen Yudovich, M.D.Detroit, MI 482021720097652
  42. Siaka Yusuf, MDEast Lansing, MI 488231619925146
  43. Kais Zakharia, MDDearborn, MI 481241942680657
  44. Irena Zalewska, MDSt Clair Shores, MI 480811407846751
  45. Nafea Zayouna, M.DWarren, MI 480931285968446
  46. Mark Zeglis, M.D.Ypsilanti, MI 481971497898233
  47. David Zink, MDHolland, MI 494241386690162
  48. Eugene Zolotarevsky, MDTraverse City, MI 496841508989633
  49. Winnie Zou, MDAnn Arbor, MI 481091427619337
  50. Tobias Zuchelli, M.D.Detroit, MI 482021619139326

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

Michigan ranks 26 of 51 per resident

  1. Hawaii5.6
  2. South Carolina5.6
  3. California5.5
  4. Michigan5.5
  5. Arizona5.4
  6. Indiana5.4
  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. Michigan85.3%
  2. United States84.4%

Gastroenterology Physician records in Michigan, measured

  • In a Medicare file469 of 550 · 85.3% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file415 · 75.5% here, 73.7% nationally
  • Not updated in five years or more287 · 52.2% here, 55.6% nationally
  • Median graduation year2003 · the 415 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

550 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in Michigan: 5.5 per 100,000 residents against 6.2 nationally (50 states and D.C.). Ann Arbor has 94 of them (17%).

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. Virginia536
  2. Washington533
  3. Georgia530
  4. Maryland505

States with a similar rate per 100,000

  1. California5.5
  2. Arizona5.4
  3. Indiana5.4
  4. Vermont5.4

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.