NPPES file of Aug 9, 2026

Allergy & Immunology (Internal Medicine) Physician in Wisconsin

22 NPPES records list allergy & immunology (internal medicine) physician with a practice address in Wisconsin, 0.4 per 100,000 residents, the 5th highest rate of 47. Madison and Green Bay 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 207RA0201X · 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, 3

  1. Madison3
  2. Green Bay2
  3. Milwaukee2
  4. Sheboygan2
  5. Summit2

Allergy & Immunology (Internal Medicine) Physician records in Wisconsin

  1. Ashvini BiswasKenosha, WI 531421154616795
  2. William Busse, MDMadison, WI 537051881661486
  3. Nana Sarkoah Fenny, M.D.Green Bay, WI 543011689998262
  4. Kelsey Finkel, MDMilwaukee, WI 532261346701505
  5. Reena George, MDThiensville, WI 530921568542140
  6. Anita Gheller-Rigoni, DOOshkosh, WI 549041073543096
  7. Lilian Gonzalez, M.D.Menomonee Falls, WI 530511417332016
  8. Lakshmi Gopalakrishnan Nair, MDGreen Bay, WI 543041124636881
  9. Mark Hermanoff, MDSummit, WI 530661447309786
  10. Sujani Kakumanu, M.D.Madison, WI 537921568413839
  11. Robert Kriz, MDVerona, WI 535931861468712
  12. Srilatha Lazzaro, M.D.Sheboygan, WI 530811790941227
  13. Nathan Lebak, MDBurlington, WI 531051285841155
  14. Delena Nguyen, MDMadison, WI 537921922757582
  15. Thomas Puchner, MDFitchburg, WI 537111134180045
  16. Amelia Rojas, MDBeloit, WI 353111528077971
  17. Mary Rolfes-Lo, M.D.Oak Creek, WI 531541508839838
  18. Brock Sherman, M.D.Milwaukee, WI 532091225062524
  19. Vanee Songsiridej, MDLa Crosse, WI 546011104820984
  20. Abhilash Vaishnav, MDDe Pere, WI 541151063529170
  21. Monica Vasudev, MDSheboygan, WI 530811598711665
  22. Shelley Watters, MDSummit, WI 530661407963457

Source: CMS NPPES, primary taxonomy 207RA0201X: records by practice city and the list of records, file of Aug 9, 2026.

Wisconsin ranks 5 of 47 per resident

  1. South Dakota0.5
  2. Maryland0.5
  3. Missouri0.5
  4. Wisconsin0.4
  5. Massachusetts0.4
  6. New York0.3
  7. 50 states and D.C.0.2

Source: CMS NPPES, primary taxonomy 207RA0201X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

86.4% of these records appear in a Medicare file, against 78.6% 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. Wisconsin86.4%
  2. United States78.6%

Allergy & Immunology (Internal Medicine) Physician records in Wisconsin, measured

  • In a Medicare file19 of 22 · 86.4% here, 78.6% nationally
  • In the CMS Doctors and Clinicians file15 · 68.2% here, 64.0% nationally
  • Not updated in five years or more9 · 40.9% here, 51.0% nationally
  • Median graduation year2003 · the 15 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RA0201X); 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 allergy & immunology (internal medicine) physician (207RA0201X) as their primary taxonomy with a practice address in Wisconsin: 0.4 per 100,000 residents against 0.2 nationally (50 states and D.C.). Madison has 3 of them (14%).

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. Illinois22
  2. Pennsylvania21
  3. Florida25
  4. Massachusetts25

States with a similar rate per 100,000

  1. New York0.3
  2. Missouri0.5
  3. Maryland0.5
  4. California0.2

The largest states

  1. California81
  2. New York61
  3. Texas50
  4. Maryland30
  5. Missouri28

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.