NPPES file of Aug 9, 2026

Radiation Oncology Physician in Hawaii

28 NPPES records list radiation oncology physician with a practice address in Hawaii, 2 per 100,000 residents, the 29th highest rate of 51. Honolulu and Hilo have the most; each record links to the provider's NPI and the Hawaii license search.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2085R0001X · method

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

Honolulu has the most, 19

  1. Honolulu19
  2. Hilo3
  3. Tripler Army Medical Center2
  4. Wailuku2
  5. Kealakekua1

Radiation Oncology Physician records in Hawaii

  1. Samuel Birer, MDHonolulu, HI 968171679004014
  2. Vincent Brown, M.D.Honolulu, HI 968171902885247
  3. Michael Chamberlin, M.D.Tripler Army Medical Center, HI 968591144541756
  4. Susie Chen, M.D.Honolulu, HI 968171164609517
  5. Ladonna Chung, M.D.Honolulu, HI 968171689709206
  6. Benjamin Falit, M.D.Wailuku, HI 967931437474046
  7. Jared Hara, MDHonolulu, HI 968131548751894
  8. Larry Henry, MDKealakekua, HI 967501386696698
  9. Thanh Huynh, M.D.Honolulu, HI 968171982677902
  10. Patrick Jewell, MDHilo, HI 967201760593099
  11. Mark Kanemori, M.D.Honolulu, HI 968171033182613
  12. James Lambeth, MDHilo, HI 967201437101854
  13. John Lederer, M.D.Honolulu, HI 968171740253327
  14. Richard Lee, MD PHDHonolulu, HI 968171922261718
  15. Pi-Ju Liu, M.D.Honolulu, HI 968171851364897
  16. Diana Lu, MDHonolulu, HI 968131437684370
  17. Mark Mayeda, M.D.Honolulu, HI 968131295181493
  18. Anthony Michaud, MDHonolulu, HI 968131225270325
  19. Scott Moon, M.D.Honolulu, HI 968131366415309
  20. Steven Nguyen, MDWailuku, HI 967931588152490
  21. David Padro, D.O.Tripler Army Medical Center, HI 968591063777647
  22. Laeton Pang, M.D.Honolulu, HI 968171083687685
  23. Michael Roach, MDHonolulu, HI 968171114226735
  24. Juliet Seigle, MDLihue, HI 967661639297716
  25. Christina Speirs, MD PHDHonolulu, HI 968171386934495
  26. Merle Sprague, MDHonolulu, HI 968551316938046
  27. Stuart Tsuji, M.D., PH.D.Honolulu, HI 968131558534602
  28. Kevin Wilcox, MDHilo, HI 967201558379255

Source: CMS NPPES, primary taxonomy 2085R0001X: records by practice city and the list of records, file of Aug 9, 2026.

Hawaii ranks 29 of 51 per resident

  1. Alaska2.0
  2. Maryland2.0
  3. Indiana2.0
  4. Hawaii2.0
  5. Kentucky1.9
  6. Maine1.9
  7. 50 states and D.C.2.1

Source: CMS NPPES, primary taxonomy 2085R0001X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

78.6% of these records appear in a Medicare file, against 82.3% 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. Hawaii78.6%
  2. United States82.3%

Radiation Oncology Physician records in Hawaii, measured

  • In a Medicare file22 of 28 · 78.6% here, 82.3% nationally
  • In the CMS Doctors and Clinicians file21 · 75.0% here, 74.0% nationally
  • Not updated in five years or more10 · 35.7% here, 54.6% nationally
  • Median graduation year2010 · the 21 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2085R0001X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

28 NPPES records list radiation oncology physician (2085R0001X) as their primary taxonomy with a practice address in Hawaii: 2 per 100,000 residents against 2.1 nationally (50 states and D.C.). Honolulu has 19 of them (68%).

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. Maine27
  2. Rhode Island29
  3. District of Columbia26
  4. New Mexico26

States with a similar rate per 100,000

  1. Kentucky1.9
  2. Indiana2.0
  3. Maryland2.0
  4. Colorado1.9

The largest states

  1. California735
  2. Florida520
  3. New York449
  4. Texas449
  5. Pennsylvania383

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.