NPPES file of Aug 9, 2026

Nephrology Physician in Wisconsin

207 NPPES records list nephrology physician with a practice address in Wisconsin, 3.5 per 100,000 residents, the 36th highest rate of 51. Milwaukee and Madison have the most; each record links to the provider's NPI and the Wisconsin license search. Page 5 of 5.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RN0300X · method

Milwaukee has the most, 70

Nephrology Physician records in Wisconsin

  1. Ajjampur Vidyaranya, M.D.Milwaukee, WI 532151952375552
  2. Gregory Warren, MDMilwaukee, WI 532151649262544
  3. Paul Warren, MDMilwaukee, WI 532151487646477
  4. Jeffrey Wesson, MDMilwaukee, WI 532261326090879
  5. Dawn Wolfgram, M.D.Milwaukee, WI 532951699975193
  6. Stephen Zimmerman, MDWaupun, WI 539631912915679
  7. Francisco Zornosa, MDOshkosh, WI 549041225070774

Source: CMS NPPES, primary taxonomy 207RN0300X: records by practice city and the list of records, file of Aug 9, 2026.

Wisconsin ranks 36 of 51 per resident

  1. Maine3.6
  2. Alabama3.6
  3. North Dakota3.6
  4. Wisconsin3.5
  5. Oregon3.2
  6. Nebraska3.2
  7. 50 states and D.C.4.0

Source: CMS NPPES, primary taxonomy 207RN0300X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

What the count covers

207 NPPES records list nephrology physician (207RN0300X) as their primary taxonomy with a practice address in Wisconsin: 3.5 per 100,000 residents against 4 nationally (50 states and D.C.). Milwaukee has 70 of them (34%).

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. South Carolina202
  2. Louisiana219
  3. Alabama183
  4. Colorado182

States with a similar rate per 100,000

  1. North Dakota3.6
  2. Maine3.6
  3. Washington3.6
  4. Florida3.7

The largest states

  1. California1,468
  2. Texas1,159
  3. New York1,049
  4. Florida840
  5. Pennsylvania651

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.