NPPES file of Aug 9, 2026

Gastroenterology Physician in Wisconsin

340 NPPES records list gastroenterology physician with a practice address in Wisconsin, 5.8 per 100,000 residents, the 20th highest rate of 51. Milwaukee and Madison have the most; each record links to the provider's NPI and the Wisconsin license search. Page 7 of 7.

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).

Milwaukee has the most, 99

  1. Milwaukee99
  2. Madison63
  3. Eau Claire20
  4. La Crosse19
  5. Green Bay17

Gastroenterology Physician records in Wisconsin

  1. Chad Stepke, MDMilwaukee, WI 532111093789315
  2. John Stone, MDOak Creek, WI 531541306813761
  3. Lisa Strate, M.D. MPHMadison, WI 537051568409092
  4. Michael Strupp, M.D.Summit, WI 530661992144844
  5. Sabo Tanimu, MDWeston, WI 544761417063793
  6. Tatyana Taranukha, M.D.Summit, WI 530661124361639
  7. Seth Tatel, M.D.Marshfield, WI 544491144433467
  8. Alay Tikue, MDEau Claire, WI 547031831676147
  9. William Townsend, MDMilwaukee, WI 532261295787547
  10. Madhuri Trivedi, M.D.West Bend, WI 530951467415604
  11. Suhasini Turlapati, MDAppleton, WI 549111992805832
  12. Alex Ulitsky, MDMilwaukee, WI 532151720015225
  13. Nimish Vakil, M.D.Summit, WI 530661336124585
  14. Adam Van HuisMilwaukee, WI 532151215399381
  15. James Vandermeer, MDMadison, WI 537151104865930
  16. Michael Vannorstrand, MDLa Crosse, WI 546011821029612
  17. Rajiv Varma, MDMilwaukee, WI 532261558313130
  18. Sotirios Vasilopoulos, M.D.Cudahy, WI 531101568432912
  19. Mario Velez, MDMilwaukee, WI 532151477879765
  20. Ramakrishna Venugopalan, MDBurlington, WI 531051265428775
  21. Aravind Vijayapal, MDMilwaukee, WI 532151922198282
  22. Gabrielle Waclawik, MDMadison, WI 537181538622543
  23. Thomas Wagner, M.D.Milwaukee, WI 532261861841488
  24. Arnold Wald, MDMadison, WI 537171063488419
  25. Andrew Walker, M.D.Madison, WI 537151649482605
  26. Franklyn Wallace, MDMadison, WI 537921932786712
  27. Tsu-Hon Wang, MDBeloit, WI 535111457369498
  28. Yuchen WangMilwaukee, WI 532091285018549
  29. Melinda Wayde, MDWausau, WI 544011063788503
  30. Jeffrey Weber, M.D.Milwaukee, WI 532151962465047
  31. Naree Whang, MDMadison, WI 537151205060613
  32. Thomas Wichelmann, DOMilwaukee, WI 532261851852628
  33. John Williams, M.D.Madison, WI 537151265516421
  34. Marla Wolfert, M.D.Sheboygan, WI 530811528232576
  35. Steven Yang, M.D.Beloit, WI 535111053370353
  36. David Yoon, M.D.Beloit, WI 535111124023031
  37. Christopher Young, M.D.Wausau, WI 544011609940725
  38. Siegfried Yu, M.D.La Crosse, WI 546011386842565
  39. Hassaan Zia, MDMilwaukee, WI 532261669887519
  40. Jaime Zighelboim, MDEau Claire, WI 547031982677423

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

Wisconsin ranks 20 of 51 per resident

  1. North Carolina6.3
  2. Virginia6.2
  3. Maine6.2
  4. Wisconsin5.8
  5. Louisiana5.8
  6. Colorado5.7
  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.

82.6% 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. Wisconsin82.6%
  2. United States84.4%

Gastroenterology Physician records in Wisconsin, measured

  • In a Medicare file281 of 340 · 82.6% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file239 · 70.3% here, 73.7% nationally
  • Not updated in five years or more176 · 51.8% here, 55.6% nationally
  • Median graduation year2003 · the 239 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

340 NPPES records list gastroenterology physician (207RG0100X) as their primary taxonomy with a practice address in Wisconsin: 5.8 per 100,000 residents against 6.2 nationally (50 states and D.C.). Milwaukee has 99 of them (29%).

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. Connecticut336
  2. Colorado334
  3. Indiana372
  4. South Carolina303

States with a similar rate per 100,000

  1. Louisiana5.8
  2. Hawaii5.6
  3. California5.5
  4. Michigan5.5

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.