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 6 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. Timothy Roarty, MDAppleton, WI 549111437226529
  2. David Rogers, MDWaukesha, WI 531881952375685
  3. Richard Rosenberg, MDFond Du Lac, WI 549351134205495
  4. Paul Ruh, MDEau Claire, WI 547011578670832
  5. Mary Ryan, MDMadison, WI 537921174262133
  6. David Rzepczynski, M.D.Elkhorn, WI 531211497862817
  7. Kia Saeian, MDMilwaukee, WI 532261932152212
  8. Sumona Saha, M.D.Madison, WI 537171720204605
  9. Wajeeh Salah, MDEau Claire, WI 547011144432444
  10. Kelly Salfiti, M.D.Barron, WI 548121225078686
  11. Nadim Salfiti, MDEau Claire, WI 547031194879262
  12. Erica Samuel, M.D.Milwaukee, WI 532151457552689
  13. Maria Samuel, MDEau Claire, WI 547031417274218
  14. Rajesh Santharam, MDMilwaukee, WI 532151447227129
  15. Patrick Sanvanson, MDMilwaukee, WI 532261043472731
  16. Frederick Schaumberg, D.O.New Berlin, WI 531511194781641
  17. Eitan Scheinthal, DOMilwaukee, WI 532331346877321
  18. Jeffrey Schenck, M.D.Mequon, WI 530971790711836
  19. Adam Schiro, M.D.Monroe, WI 535661164711081
  20. Steven Schlack-Haerer, MDLa Crosse, WI 546011568466142
  21. James Schlais, M.D.Wausau, WI 544011740354745
  22. Michael Schmalz, MDMilwaukee, WI 532151801863576
  23. Benjamin Schneeberger, M.D.Wausau, WI 544011982778700
  24. Robert Shaffer, MDLa Crosse, WI 546011982687331
  25. Marmy Shah, M.D.Madison, WI 537051679734511
  26. Reza Shaker, MDMilwaukee, WI 532261033161989
  27. Tariq Shakoor, M.D.La Crosse, WI 546011952300899
  28. Mansoor Shariff, M.D.Madison, WI 537051316055346
  29. Monica Sharma, D.O.La Crosse, WI 546011528208436
  30. Rajesh Sharma, MDTwo Rivers, WI 542411689781874
  31. Tarun Sharma, MDMilwaukee, WI 532151104037340
  32. Annie Shergill, M.D.Milwaukee, WI 532151609257153
  33. Vasanth Siddalingaiah, M.D.Milwaukee, WI 532091447280326
  34. Harjot Sidhu, MDGrafton, WI 530241902885924
  35. Elena Sidorenko, MDLa Crosse, WI 546011831281674
  36. Nathan Slinde, MDFond Du Lac, WI 549351174571806
  37. Thomas Slota, MDMilwaukee, WI 532101578521647
  38. Daniel Smith, MDMadison, WI 537151326009234
  39. Zachary Smith, DOMilwaukee, WI 532261003048976
  40. W Sobin, MDMilwaukee, WI 532261972550929
  41. Sudeep Sodhi, MDMenasha, WI 549521679567606
  42. Rana Sokhi, MDSheboygan, WI 530811356458566
  43. Anurag Soni, MDMadison, WI 537171215924816
  44. Andrew Spiel, M.D.Madison, WI 537051588907992
  45. Elizabeth Sprague, M.D.Milwaukee, WI 532151871949834
  46. David Staff, M.D.Milwaukee, WI 532151386619427
  47. David Stampfl, MDGreen Bay, WI 543011386711463
  48. Jason Stangl, MDMadison, WI 537151326093386
  49. Peter Stanko, MDMadison, WI 537051912932823
  50. Daniel Stein, M.D.Milwaukee, WI 532261700968880

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.