NPPES file of Aug 9, 2026

Endodontics in South Dakota

13 NPPES records list endodontics with a practice address in South Dakota, 1.4 per 100,000 residents, the 38th 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.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 1223E0200X · 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, 8

  1. Sioux Falls8
  2. Rapid City4
  3. Watertown1

Endodontics records in South Dakota

  1. Richard Allen, D.D.S.Sioux Falls, SD 571031215155734
  2. Mark Bierma, D.D.S. M.S.Sioux Falls, SD 571081710059605
  3. Thane Crump, DDSWatertown, SD 572011710195896
  4. Steven Dietrich, DDS MSSioux Falls, SD 571051841369816
  5. Zachary Goettsche, DDSSioux Falls, SD 571081427505056
  6. Mark Hogg, DDS, SCDRapid City, SD 577021245386168
  7. Michael Homer, D.M.D.Sioux Falls, SD 571051366596686
  8. Marshall Lavin, DDSSioux Falls, SD 571031356421168
  9. Nathan Schwandt, D.D.S.Rapid City, SD 577021609966779
  10. Anne Wiseman, D.D.S., M.S.D.Sioux Falls, SD 571061023089596
  11. Andrew Wiswall, D.D.SSioux Falls, SD 571081255656807
  12. Jeffrey Wiswall, D.D.S., M.S.Rapid City, SD 577021063592160
  13. Steven Wiswall, DMD, MSRapid City, SD 577011316389117

Source: CMS NPPES, primary taxonomy 1223E0200X: records by practice city and the list of records, file of Aug 9, 2026.

South Dakota ranks 38 of 51 per resident

  1. Alabama1.5
  2. Tennessee1.5
  3. Rhode Island1.5
  4. South Dakota1.4
  5. Wisconsin1.4
  6. Georgia1.4
  7. 50 states and D.C.2.0

Source: CMS NPPES, primary taxonomy 1223E0200X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

61.5% of these records appear in a Medicare file, against 67.5% 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 Dakota61.5%
  2. United States67.5%

Endodontics records in South Dakota, measured

  • In a Medicare file8 of 13 · 61.5% here, 67.5% nationally
  • In the CMS Doctors and Clinicians file0 · 0.0% here, 0.2% nationally
  • Not updated in five years or more11 · 84.6% here, 74.1% nationally

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 1223E0200X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

13 NPPES records list endodontics (1223E0200X) as their primary taxonomy with a practice address in South Dakota: 1.4 per 100,000 residents against 2 nationally (50 states and D.C.). Sioux Falls has 8 of them (62%).

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. Delaware14
  2. Rhode Island16
  3. Alaska17
  4. Maine17

States with a similar rate per 100,000

  1. Wisconsin1.4
  2. Georgia1.4
  3. Tennessee1.5
  4. Indiana1.3

The largest states

  1. California1,018
  2. Florida510
  3. New York483
  4. Texas460
  5. Massachusetts276

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.