NPPES file of Aug 9, 2026

Internal Medicine Physician in South Dakota

247 NPPES records list internal medicine physician with a practice address in South Dakota, 27 per 100,000 residents, the 46th highest rate of 51. Sioux Falls and Rapid City have the most; each record links to the provider's NPI and the South Dakota license search. Page 5 of 5.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · method

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

Sioux Falls has the most, 110

  1. Sioux Falls110
  2. Rapid City43
  3. Yankton15
  4. Aberdeen12
  5. Mitchell9

Internal Medicine Physician records in South Dakota

  1. Anup Shrestha, M.D.Sioux Falls, SD 571051316379613
  2. Kevin Simonelic, M.D.Spearfish, SD 577831750708244
  3. Janell Simpkins, MDSioux Falls, SD 571041619989605
  4. Sherlon Sinclair, M.D.Yankton, SD 570781619506896
  5. Braj Singh, MDRapid City, SD 577011295049757
  6. Lidia Siorek, MDSioux Falls, SD 571051831110030
  7. Kevin Smith, DOSioux Falls, SD 571051518320928
  8. Terrance Smith, M.D.Clear Lake, SD 572261386658425
  9. John Sneden, MDWatertown, SD 572011811999659
  10. Kelly Stacy, MDRapid City, SD 577011265521009
  11. Steven Stocks, MDRapid City, SD 577011417046285
  12. Heidi Strouth, MDRapid City, SD 577011699722629
  13. Ananta Subedi, M.D.Sioux Falls, SD 571051962886929
  14. Kathyayini Tappeta, MDRapid City, SD 577011487394524
  15. Denis Tcedilin, MDAberdeen, SD 574011053045591
  16. Natasha Telesford, MDRapid City, SD 577011639593395
  17. Erin Terpstra, MD, PHDSioux Falls, SD 571051366005662
  18. Jitendra Thakkar, MDSioux Falls, SD 571051598710782
  19. Shailesh ThapaRapid City, SD 577011215299011
  20. Jerel Tieszen, M.D.Sioux Falls, SD 571051730184623
  21. Michael Tobin, M.D.Sioux Falls, SD 571051760419394
  22. Khiem Tran, M.D., M.H.A.Kyle, SD 577521891761631
  23. Douglas TraubRapid City, SD 577011396785978
  24. Issam Turk, MDRapid City, SD 577011871973420
  25. Racheal Tushabe, MDAberdeen, SD 574011255767273
  26. Sophie Two Hawk, M.D.Sioux Falls, SD 571081306862917
  27. Hameed Ullah, MDSioux Falls, SD 571051306524046
  28. Shristi Upadhyay Banskota, MDSioux Falls, SD 571051043796485
  29. Kathleen Vandewalle, D.O.Aberdeen, SD 574011952410185
  30. Tejaswini Vasamsetty, M.D.Sioux Falls, SD 571051588043426
  31. Wendy Vetter, DOSioux Falls, SD 571051053575092
  32. Robert Vosler, MDFort Meade, SD 577411457438145
  33. Rafia Irfan WaheedSioux Falls, SD 571051407536501
  34. Rebecca Waring, MDMiller, SD 573621568925691
  35. Timothy Waterman, MDAberdeen, SD 574011326007899
  36. Kevin WeilandRapid City, SD 577011659308120
  37. Matthew Werpy, D.O.Rapid City, SD 577011962720250
  38. Kevin Whittle, M.D.Sioux Falls, SD 571041679661631
  39. Gregory Wiedel, M.D.Huron, SD 573501033114871
  40. Russell Wilke, MDSioux Falls, SD 571051811007966
  41. Jennifer Williamson, M.D.Brookings, SD 570061427305721
  42. Kimberly Woolhiser, MDSioux Falls, SD 571051245228253
  43. Sheena Wydermyer, M.D.Fort Meade, SD 577411912095340
  44. Michael Yanuck, MDLower Brule, SD 575481881605046
  45. Alla Zamulko, M.D.Sioux Falls, SD 571081699710822
  46. Candace Zeigler, M.D.Sioux Falls, SD 571051235134115
  47. David Zeigler, M.D.Sioux Falls, SD 571051346245222

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

South Dakota ranks 46 of 51 per resident

  1. Montana29
  2. Oklahoma28
  3. Iowa27
  4. South Dakota27
  5. Arkansas25
  6. Alaska24
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

79.4% of these records appear in a Medicare file, against 78.7% 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. South Dakota79.4%
  2. United States78.7%

Internal Medicine Physician records in South Dakota, measured

  • In a Medicare file196 of 247 · 79.4% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file146 · 59.1% here, 61.4% nationally
  • Not updated in five years or more147 · 59.5% here, 55.4% nationally
  • Median graduation year2008 · the 146 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

247 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in South Dakota: 27 per 100,000 residents against 44 nationally (50 states and D.C.). Sioux Falls has 110 of them (45%).

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. North Dakota245
  2. Alaska177
  3. Montana324
  4. Vermont326

States with a similar rate per 100,000

  1. Iowa27.2
  2. Oklahoma27.5
  3. Arkansas25.0
  4. Texas30.1

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

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.