NPPES file of Aug 9, 2026

Sleep Medicine (Internal Medicine) Physician in Wisconsin

27 NPPES records list sleep medicine (internal medicine) physician with a practice address in Wisconsin, 0.5 per 100,000 residents, the 16th highest rate of 48. Fitchburg and Madison 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 207RS0012X · method

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

Fitchburg has the most, 7

  1. Fitchburg7
  2. Madison6
  3. Green Bay4
  4. Janesville3
  5. La Crosse3

Sleep Medicine (Internal Medicine) Physician records in Wisconsin

  1. Kabir Ahmed, M.D.Fond Du Lac, WI 549351528325891
  2. Ewa Alexander, MDFitchburg, WI 537131609092584
  3. Rajesh Balagani, DOJanesville, WI 535461477754927
  4. Steven Barczi, MDMadison, WI 537921730156761
  5. Quinn Bongers, MDMadison, WI 537921073133757
  6. Kenneth Casey, MDMadison, WI 537191952384703
  7. Medhavani Chandra, MDMadison, WI 537921003428343
  8. Shane Creado, M.D.Madison, WI 537051578829230
  9. Joseph Crisalli, M.D.Fitchburg, WI 537131417987736
  10. William Donovan, MDFitchburg, WI 537131972556827
  11. Ethan Emmons, MDGreen Bay, WI 543011265416325
  12. Joshua Fehl, MDJanesville, WI 535481487942652
  13. Allen Foster, MDLa Crosse, WI 546011043261399
  14. Deane Franso, M.D.Green Bay, WI 543011407122906
  15. James Gapinski, MDGreen Bay, WI 543081922114768
  16. Harrison Gimbel, MDFitchburg, WI 537131184042723
  17. Amit Gupta, M.D.Green Bay, WI 543111679991277
  18. Don Harden, MDFitchburg, WI 537131144380577
  19. Scott Johnson, M.D.Fitchburg, WI 537131790957371
  20. Nazi Khan, MDColumbus, WI 539251225004245
  21. Mary Klink, MDMadison, WI 537151033185046
  22. Jacalyn Nelson, MDFitchburg, WI 537131063430833
  23. Nouraddin Nouraddin, MD, FACPWauwatosa, WI 532261659649010
  24. Jason Rakita, MDJanesville, WI 535461770929341
  25. Daren Tobert, MDLa Crosse, WI 546011962406728
  26. Dakota Vaughan, MDMilwaukee, WI 532261013650498
  27. Alexander Villareal, M.D.La Crosse, WI 546011609094457

Source: CMS NPPES, primary taxonomy 207RS0012X: records by practice city and the list of records, file of Aug 9, 2026.

Wisconsin ranks 16 of 48 per resident

  1. Delaware0.5
  2. Vermont0.5
  3. Idaho0.5
  4. Wisconsin0.5
  5. Ohio0.4
  6. Pennsylvania0.4
  7. 50 states and D.C.0.3

Source: CMS NPPES, primary taxonomy 207RS0012X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

85.2% 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. Wisconsin85.2%
  2. United States84.4%

Sleep Medicine (Internal Medicine) Physician records in Wisconsin, measured

  • In a Medicare file23 of 27 · 85.2% here, 84.4% nationally
  • In the CMS Doctors and Clinicians file17 · 63.0% here, 70.6% nationally
  • Not updated in five years or more12 · 44.4% here, 43.7% nationally
  • Median graduation year2001 · the 17 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RS0012X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

27 NPPES records list sleep medicine (internal medicine) physician (207RS0012X) as their primary taxonomy with a practice address in Wisconsin: 0.5 per 100,000 residents against 0.3 nationally (50 states and D.C.). Fitchburg has 7 of them (26%).

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. New Jersey27
  2. Tennessee27
  3. Arizona28
  4. Indiana26

States with a similar rate per 100,000

  1. Ohio0.4
  2. Pennsylvania0.4
  3. Minnesota0.4
  4. Massachusetts0.5

The largest states

  1. California129
  2. Pennsylvania58
  3. New York57
  4. Texas56
  5. Ohio53

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.