NPPES file of Aug 9, 2026

Diagnostic Radiology Physician in Wisconsin

1,005 NPPES records list diagnostic radiology physician with a practice address in Wisconsin, 17 per 100,000 residents, the 5th highest rate of 51. Milwaukee and Madison have the most; each record links to the provider's NPI and the Wisconsin license search. Page 14 of 21.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2085R0202X · 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, 226

  1. Milwaukee226
  2. Madison224
  3. La Crosse60
  4. St Francis56
  5. Green Bay53

Diagnostic Radiology Physician records in Wisconsin

  1. Stacy O'Connor, M.D.Milwaukee, WI 532261588854616
  2. Kathleen O'Mara, DOSt Francis, WI 532351437362035
  3. Darren O'Neill, M.D.Milwaukee, WI 532261982781373
  4. Thekla Oechtering, MDMadison, WI 537921053172387
  5. David Olson, MDGreenfield, WI 532201760403489
  6. Erik Olson, M.D.Waukesha, WI 531881902830201
  7. James Olson, MDMadison, WI 537151720068554
  8. Susan Oneson, M.D.St Francis, WI 532351538199690
  9. Daniel Ongna, M.D.Stevens Point, WI 544811013952779
  10. Nicholas Organ, MDMenomonee Falls, WI 530511386105989
  11. Frederick Origenes, M.D.Milwaukee, WI 532261720062250
  12. Robert Orth, M.DMilwaukee, WI 532261962615971
  13. Joshua Orwig, DOJanesville, WI 535481053601146
  14. Louis Owens, MDMequon, WI 530921568529485
  15. Bora Ozel, M DMadison, WI 537921316998917
  16. Sarika Pamarthy, MDMilwaukee, WI 532261598996878
  17. Nikolaos Panagiotopoulos, MDMadison, WI 537921922857366
  18. Fred Panzer, M.D.Appleton, WI 549131447296744
  19. John Park, MDMadison, WI 537031487623773
  20. Lisa Park, MDMadison, WI 537051972130938
  21. Brian Parker, M.D.Marshfield, WI 544491841405495
  22. Tchaiko Parris, MDGreen Bay, WI 543011467630954
  23. Amar Patel, M.D.Madison, WI 537921023452604
  24. Chirag Patel, M.D.Greenfield, WI 532201689959116
  25. Pritesh PatelMilwaukee, WI 532261194969857
  26. Rupesh Patel, M.D.St Francis, WI 532351407020258
  27. Isha Pathak, MDMadison, WI 537151104404037
  28. James PatrickMadison, WI 537921740300136
  29. Jan Pearce, MDMilwaukee, WI 532141376510719
  30. Ryan Peirce, M.D.Green Bay, WI 543041790704724
  31. Thomas Pelant, M.D.Rice Lake, WI 548681134297559
  32. James Pellegrini, M.D.Neenah, WI 549561457375016
  33. Roger Pellmann, M.D.Germantown, WI 530221659390557
  34. Anthony Peret, MDMadison, WI 537921497675987
  35. Jessica PerryMadison, WI 537151285214882
  36. Gregory Petermann, MDMarshfield, WI 544491932199940
  37. Anne Petersen-Fisher, MDGreenfield, WI 532201104847904
  38. Daniel Peterson, MDSt Francis, WI 532351902913304
  39. Molly PetersonSt Francis, WI 532351346774726
  40. Keith Pham, M.D.Milwaukee, WI 532261700058344
  41. Perry Pickhardt, MDMadison, WI 537921962464123
  42. James Picotte, M.D.Green Bay, WI 543011083786511
  43. Douglas Pierce, MDMilwaukee, WI 532261043715758
  44. Cory Pierson, MDMadison, WI 537151518586304
  45. Matthew Pipho, M.D.Verona, WI 535931285054064
  46. Ali PirastehMadison, WI 537921164788253
  47. Ewa Plagman, MDLa Crosse, WI 546011548262744
  48. Matthew Plunk, MDMilwaukee, WI 532261366674426
  49. Carol Pohl, M.D.Milwaukee, WI 532091245264670
  50. Bryan Pooler, M.D.Madison, WI 537921851650030

Source: CMS NPPES, primary taxonomy 2085R0202X: records by practice city and the list of records, file of Aug 9, 2026.

Wisconsin ranks 5 of 51 per resident

  1. District of Columbia25
  2. Massachusetts24
  3. Connecticut17
  4. Wisconsin17
  5. Pennsylvania17
  6. Rhode Island16
  7. 50 states and D.C.13

Source: CMS NPPES, primary taxonomy 2085R0202X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

68.1% of these records appear in a Medicare file, against 73.1% 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. Wisconsin68.1%
  2. United States73.1%

Diagnostic Radiology Physician records in Wisconsin, measured

  • In a Medicare file684 of 1,005 · 68.1% here, 73.1% nationally
  • In the CMS Doctors and Clinicians file666 · 66.3% here, 68.5% nationally
  • Not updated in five years or more509 · 50.6% here, 56.9% nationally
  • Median graduation year2006 · the 664 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2085R0202X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,005 NPPES records list diagnostic radiology physician (2085R0202X) as their primary taxonomy with a practice address in Wisconsin: 17 per 100,000 residents against 13 nationally (50 states and D.C.). Milwaukee has 226 of them (22%).

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. Missouri976
  2. Washington1,041
  3. Tennessee968
  4. Georgia1,065

States with a similar rate per 100,000

  1. Pennsylvania17.0
  2. Connecticut17.1
  3. Rhode Island16.2
  4. New York16.1

The largest states

  1. California4,500
  2. New York3,146
  3. Texas3,124
  4. Florida2,761
  5. Pennsylvania2,199

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.