NPPES file of Aug 9, 2026

Hematology & Oncology Physician in California

1,583 NPPES records list hematology & oncology physician with a practice address in California, 4.1 per 100,000 residents, the 19th highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 4 of 32.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RH0003X · 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, 153

  1. Los Angeles153
  2. San Diego88
  3. Sacramento77
  4. San Francisco64
  5. Orange63

Hematology & Oncology Physician records in California

  1. Farah Brasfield, MDAnaheim, CA 928071730256629
  2. Allen Bredt, MDLos Angeles, CA 900271972651891
  3. James Breeden, MDOakland, CA 946111053499822
  4. Elizabeth Brem, MDOrange, CA 928681578883781
  5. Peter Brett, M.D.Santa Rosa, CA 954031487743472
  6. Karissa Britten, MDLos Angeles, CA 900481518461862
  7. Samuel Brondfield, M.D.San Francisco, CA 941431063754448
  8. Joel Brothers, MDLoma Linda, CA 923501427311034
  9. Robert BrouillardLa Jolla, CA 920371487626420
  10. Gail Brown, M.D.Woodside, CA 940621750402996
  11. Jennifer Brown, M.D.San Mateo, CA 944021740347350
  12. David Bryson, M.D.Visalia, CA 932911346248077
  13. Gary Buchschacher Jr., MDLos Angeles, CA 900271730250705
  14. Imawati Budihardjo, M.D., PH.DLa Jolla, CA 920931043337173
  15. Lynne Bui, M.D.Gilroy, CA 950201114169323
  16. Mohammed Bukari, MDClovis, CA 936111487802385
  17. Anushi Bulumulle, M.DMonterey, CA 939401770996589
  18. Arsinur Burcoglu-Oral, MDBrawley, CA 922271982789749
  19. Michael Burgess, M.D., PH.D.San Francisco, CA 941101083869242
  20. Adam Burgoyne, M.D., PH.D.San Diego, CA 921031356638969
  21. Aaron Burkenroad, MDLos Angeles, CA 900171619473667
  22. Nicholas Burley, DOMission Viejo, CA 926911932660149
  23. Richard Burt, MDLa Jolla, CA 920371225090319
  24. David Burtzo, M.D.Huntington Beach, CA 926481336168814
  25. Amanpreet Buttar, MDDublin, CA 945681962679753
  26. James Buturla, M.D.La Jolla, CA 920931770997256
  27. Timothy Byun, MDOrange, CA 928681871545012
  28. Johnny Cai, DODublin, CA 945681861998452
  29. Thomas Callan, M. D.El Cajon, CA 920201699911487
  30. Elber Camacho, MDPalm Springs, CA 922621598761710
  31. David Campbell, M.D.Grass Valley, CA 959451750373239
  32. Maira Campos, M.D.Santa Barbara, CA 931051497020861
  33. Sandra Canales, MDRedwood City, CA 940631831277474
  34. Aram Canin, MDWalnut Creek, CA 945961669550752
  35. Huynh Cao, MDLoma Linda, CA 923501720238249
  36. Ying Cao, MD, PH.DLos Gatos, CA 950321326209438
  37. Sara Capatanos, M.D.Simi Valley, CA 930651558524322
  38. Gabriel Carabulea, M.D.San Clemente, CA 926731063419604
  39. Pat Carinugan, FNPSacramento, CA 958171164043709
  40. Sophie Carlson, MDSanta Monica, CA 904041578040804
  41. Mark Carmichael, MDRancho Mirage, CA 922701811973043
  42. Julia CarnevaleSan Francisco, CA 941431518257625
  43. Michael Carroll, M.D.Sacramento, CA 958161699748707
  44. Robert Carroll, M.D.Newport Beach, CA 926601295875854
  45. Chrystina Castellon, MDRancho Mirage, CA 922701508249293
  46. Haley Castiglione, N.P.Los Angeles, CA 900951528148921
  47. Kindra CastorMonterey, CA 939401568089613
  48. Esther Catalya, M.D.Pleasant Hill, CA 945231629184148
  49. Dazhi Cen, MDSacramento, CA 958251679651350
  50. Miguel Cerejo, D.O.Pleasant Hill, CA 945231447236344

Source: CMS NPPES, primary taxonomy 207RH0003X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 19 of 51 per resident

  1. Ohio4.4
  2. New Jersey4.3
  3. Louisiana4.1
  4. California4.1
  5. Nebraska4.0
  6. Virginia4.0
  7. 50 states and D.C.4.2

Source: CMS NPPES, primary taxonomy 207RH0003X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

83.1% of these records appear in a Medicare file, against 82.9% 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. California83.1%
  2. United States82.9%

Hematology & Oncology Physician records in California, measured

  • In a Medicare file1,315 of 1,583 · 83.1% here, 82.9% nationally
  • In the CMS Doctors and Clinicians file1,126 · 71.1% here, 71.3% nationally
  • Not updated in five years or more917 · 57.9% here, 54.3% nationally
  • Median graduation year2003 · the 1,124 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RH0003X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,583 NPPES records list hematology & oncology physician (207RH0003X) as their primary taxonomy with a practice address in California: 4.1 per 100,000 residents against 4.2 nationally (50 states and D.C.). Los Angeles has 153 of them (10%).

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. New York1,163
  2. Texas922
  3. Florida818
  4. Pennsylvania784

States with a similar rate per 100,000

  1. Nebraska4.0
  2. Louisiana4.1
  3. Virginia4.0
  4. North Carolina4.0

The largest states

  1. New York1,163
  2. Texas922
  3. Florida818
  4. Pennsylvania784
  5. Illinois666

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.