NPPES file of Aug 9, 2026

Radiation Oncology Physician in California

735 NPPES records list radiation oncology physician with a practice address in California, 1.9 per 100,000 residents, the 33rd highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 6 of 15.

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).

Los Angeles has the most, 98

  1. Los Angeles98
  2. San Francisco44
  3. San Diego43
  4. Stanford43
  5. Sacramento32

Radiation Oncology Physician records in California

  1. David Hodgens, M.D.La Jolla, CA 920371063406080
  2. Rex Hoffman, MDStudio City, CA 916041497739650
  3. Kevin Holland, MDLos Angeles, CA 900271184796419
  4. David Holley, M.D.Monterey, CA 939401801981311
  5. David Hong, M.D.Los Angeles, CA 900891134464795
  6. Julian Hong, M.D., M.S.San Francisco, CA 941431235540469
  7. David Hoopes, M.D.San Diego, CA 921271962520080
  8. Richard Hoppe, M.D.Stanford, CA 943051730221821
  9. Austin Hopper, MDSan Diego, CA 921031306308721
  10. Adam Horn, M.D.San Diego, CA 921031982979019
  11. Kathleen Horst, M.D.Stanford, CA 943051144385386
  12. Alexandra Elena Hotca-Cho, MDSan Francisco, CA 941431407317001
  13. Wei-Hsien Hou, M.D., PH.D.San Bernardino, CA 924041184986879
  14. Daniel Hovenstine, MDRedondo Beach, CA 902771215959820
  15. David Hsu, MDMonterey Park, CA 917541619983343
  16. I-Chow Hsu, M.D.San Francisco, CA 941151144263039
  17. David Huang, MDLos Angeles, CA 900171154325652
  18. Sara Huang, MDSan Francisco, CA 941151053393033
  19. Caressa Hui, MDOrange, CA 928681891254165
  20. Darryl Hunter, MDRancho Cordova, CA 956701538247242
  21. Minh-Phuong Huynh-Le, MDDublin, CA 945681821338682
  22. Julie Hwang, MDLos Angeles, CA 900271396804993
  23. Lindsay Hwang, M.D.Los Angeles, CA 900891780047795
  24. Elizabeth Hyden, MDMission Viejo, CA 926911780610196
  25. Shahrokh Iganej, MDLos Angeles, CA 900271306905906
  26. Tahir Ijaz, M.D.San Diego, CA 921031225036742
  27. Pericles Ioannides, M.D.Sonora, CA 953701386007367
  28. Siavash Jabbari, MDSan Diego, CA 921231720314107
  29. Ben Jabola, M.D.Loma Linda, CA 923541992721435
  30. Judy Jackson, M.D.Palm Springs, CA 922621376512145
  31. Vikram Jairam, M.D.Auburn, CA 956031811359706
  32. Julie Jang, MD, PHDWest Hollywood, CA 900481063929529
  33. Richard Jennelle, M.D.Los Angeles, CA 900891215053335
  34. Madhu John, MDFresno, CA 937201588639702
  35. Jennifer Jones, M.D.Stanford, CA 943051194911859
  36. Jay Joseph, M.D.Ukiah, CA 954821396835153
  37. Jesus Juarez CasillasApple Valley, CA 923071003496969
  38. Edward Jung, MDWest Covina, CA 917901003011941
  39. Victor Jung, M.D.Marysville, CA 959011528009503
  40. Jessica Jutzy, MDLoma Linda, CA 923541821475393
  41. Peyman KabolizadehFountain Valley, CA 927081093941171
  42. Ronny KalashSherman Oaks, CA 914111811317175
  43. Anusha Kalbasi, MDStanford, CA 943051851683684
  44. Muhtada Kamal AldinStockton, CA 952071073172896
  45. Mitchell Kamrava, MDWest Hollywood, CA 900481982806097
  46. Joseph Kang, M.D., PH.D.Loma Linda, CA 923541730354929
  47. Daniel Kapp, MDStanford, CA 943051063550747
  48. Tania Kaprealian, MDLos Angeles, CA 900951366778748
  49. Donald Karon, M.D.Fountain Valley, CA 927081982668216
  50. Norbert Kased, M.D.Vista, CA 920811639405178

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

California ranks 33 of 51 per resident

  1. Kentucky1.9
  2. Maine1.9
  3. Colorado1.9
  4. California1.9
  5. Nebraska1.9
  6. Tennessee1.9
  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.

82.9% 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. California82.9%
  2. United States82.3%

Radiation Oncology Physician records in California, measured

  • In a Medicare file609 of 735 · 82.9% here, 82.3% nationally
  • In the CMS Doctors and Clinicians file545 · 74.1% here, 74.0% nationally
  • Not updated in five years or more406 · 55.2% here, 54.6% nationally
  • Median graduation year2005 · the 545 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

735 NPPES records list radiation oncology physician (2085R0001X) as their primary taxonomy with a practice address in California: 1.9 per 100,000 residents against 2.1 nationally (50 states and D.C.). Los Angeles has 98 of them (13%).

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. Florida520
  2. New York449
  3. Texas449
  4. Pennsylvania383

States with a similar rate per 100,000

  1. Colorado1.9
  2. Nebraska1.9
  3. Tennessee1.9
  4. Delaware1.8

The largest states

  1. Florida520
  2. New York449
  3. Texas449
  4. Pennsylvania383
  5. Ohio298

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.