NPPES file of Aug 9, 2026

Pediatric Nephrology Physician in Wisconsin

22 NPPES records list pediatric nephrology physician with a practice address in Wisconsin, 0.4 per 100,000 residents, the 12th highest rate of 48. Madison and Milwaukee have the most; each record links to the provider's NPI and the Wisconsin license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2080P0210X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Madison has the most, 11

  1. Madison11
  2. Milwaukee9
  3. Marshfield2

Pediatric Nephrology Physician records in Wisconsin

  1. Omar Al-Masri, MDMarshfield, WI 544491770212433
  2. Sharon Bartosh, MDMadison, WI 537921710953419
  3. Margret Bock, MDMadison, WI 537921154578060
  4. Ellen Cody, MDMilwaukee, WI 532261336502319
  5. Rachel Engen, M.D.Madison, WI 537921548434780
  6. Robert Haws, MDMarshfield, WI 544491205936457
  7. Taylor HouseMadison, WI 537921629430871
  8. Jennifer Jetton, M.D.Milwaukee, WI 532261588985261
  9. Cristin Kaspar, M.D.Milwaukee, WI 532261942520341
  10. Priya Pais, M.D.Milwaukee, WI 532261255514212
  11. Neil Paloian, MDMadison, WI 537921982896668
  12. Cynthia Pan, MDMilwaukee, WI 532261164474896
  13. Craig Porter, MDMilwaukee, WI 532261265413298
  14. Allison Redpath Mahon, MDMadison, WI 537921962601484
  15. Jesse Roach, M.D.Madison, WI 537921003930553
  16. Samantha Schwartz, MD, MSMadison, WI 537921134780240
  17. Michael Semanik, M.D.Madison, WI 537051760706733
  18. Vaishali Singh, MDMilwaukee, WI 532261396003406
  19. Benjamin Spector, M.D.Madison, WI 537921306294558
  20. Katie Sullivan, MDMilwaukee, WI 532261730715830
  21. Scott Van Why, MDMilwaukee, WI 532261437103348
  22. Aaron Wightman, M.DMadison, WI 537921194980938

Source: CMS NPPES, primary taxonomy 2080P0210X: records by practice city and the list of records, file of Aug 9, 2026.

Wisconsin ranks 12 of 48 per resident

  1. Washington0.4
  2. Nebraska0.4
  3. Michigan0.4
  4. Wisconsin0.4
  5. Rhode Island0.4
  6. Maine0.4
  7. 50 states and D.C.0.3

Source: CMS NPPES, primary taxonomy 2080P0210X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

63.6% of these records appear in a Medicare file, against 70.9% 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. Wisconsin63.6%
  2. United States70.9%

Pediatric Nephrology Physician records in Wisconsin, measured

  • In a Medicare file14 of 22 · 63.6% here, 70.9% nationally
  • In the CMS Doctors and Clinicians file12 · 54.5% here, 58.9% nationally
  • Not updated in five years or more13 · 59.1% here, 53.1% nationally
  • Median graduation year2007 · the 12 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2080P0210X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

22 NPPES records list pediatric nephrology physician (2080P0210X) as their primary taxonomy with a practice address in Wisconsin: 0.4 per 100,000 residents against 0.3 nationally (50 states and D.C.). Madison has 11 of them (50%).

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. Virginia23
  2. Arizona20
  3. Tennessee20
  4. Indiana19

States with a similar rate per 100,000

  1. Michigan0.4
  2. Iowa0.3
  3. Puerto Rico0.4
  4. Illinois0.3

The largest states

  1. California116
  2. New York86
  3. Texas76
  4. Florida61
  5. Pennsylvania60

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.