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 10 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. Drew Moghanaki, MDLos Angeles, CA 900951669538443
  2. Dasarahally Mohan, MDSouth San Francisco, CA 940801750344453
  3. Marjaneh Moini, MDConcord, CA 945201023009438
  4. Fahad Momin, CMDLos Angeles, CA 900331033877048
  5. Arta Monjazeb, M.D., PH.D.Sacramento, CA 958171619136835
  6. Jedidiah Monson, MDFresno, CA 937201669455390
  7. Henry Montes, M.D.Oxnard, CA 930301215992193
  8. Harry Moyses, M.D.Irvine, CA 926181376522300
  9. Arno Mundt, M.D.San Diego, CA 921031790708808
  10. James Murphy, MDLa Jolla, CA 920931730382631
  11. Kevin Murphy, M.D.La Jolla, CA 920931730104167
  12. Subir Nag, MDSanta Clara, CA 950511962552778
  13. Jean Nakamura, M.D.San Francisco, CA 941431154369551
  14. Ivan Namihas, M.D.Loma Linda, CA 923541285652495
  15. Minahal NaveedSacramento, CA 958171356099592
  16. Selamawit Negusse, MDIrvine, CA 926181316144041
  17. Beth Neilsen, MD, PHDStanford, CA 943051821612854
  18. James NelsonRedlands, CA 923731699962936
  19. Christopher Neville, M.D.Modesto, CA 953551790743136
  20. Ernest Ngo, M.D.Santa Ana, CA 927051366454415
  21. Anthony Nguyen, MD, PHDWest Hollywood, CA 900481992293468
  22. Ky Nam Nguyen, M.D.Sacramento, CA 958171285011254
  23. Nathalie Nguyen, MDRancho Cordova, CA 956701205890498
  24. Rizwan Nurani, MDApple Valley, CA 923071386756245
  25. Chika Nwachukwu, MDSan Diego, CA 921031194138263
  26. Timothy Oconnor, M.D.Oxnard, CA 930301982669396
  27. Rosa Ong, MDLos Angeles, CA 900271558432435
  28. Megan Orr, MDSan Diego, CA 921031104405331
  29. Mary Ozohan, MDSherman Oaks, CA 914111609859412
  30. Oscar Padilla, MDLoma Linda, CA 923501235659095
  31. Paul Page, MDSacramento, CA 958231811132152
  32. Paul Pagnini, M.D.Templeton, CA 934651225188105
  33. Atmaram Pai Panandiker, MDSan Diego, CA 921211871552950
  34. Daphne Palmer, MDTruckee, CA 961611205896024
  35. Hubert Pan, MDSacramento, CA 958161699017368
  36. Mahesh Pant, M.D.Redding, CA 960011609875756
  37. Catherine Park, M.D.San Francisco, CA 941151205878360
  38. Jino Park, MDOrange, CA 928681164161907
  39. Anand Parthasarathy, MD, MPHDublin, CA 945681215063094
  40. Deep Patel, MDSouth San Francisco, CA 940801841220308
  41. Kamal Patel, M.D.Rancho Mirage, CA 922701710188065
  42. Milan Patel, M.D.South San Francisco, CA 940801407034234
  43. Rakesh Patel, MDLos Gatos, CA 950321992768519
  44. Carol Pattillo, MDSanta Barbara, CA 931081710228598
  45. Anna Paulsson, M.D.San Francisco, CA 941431134562333
  46. Sunanda Pejavar, M.D.La Mesa, CA 919421912232513
  47. Bihai Peng, MDRancho Cordova, CA 956701932287430
  48. Yuchi Peng, MDPalmdale, CA 935511023058195
  49. Sharon Pereira-Matsumoto, MDRedding, CA 960021427070671
  50. Rebecca Philipson, M.D.Torrance, CA 905051184079766

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.