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 1 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. Mark Abate, M.D.Santa Barbara, CA 931051588778674
  2. Iman Abdalla, MDLos Angeles, CA 900271730248311
  3. Haifaa Abdulhaq, MDFresno, CA 936111508024647
  4. Nihal Abdulla, MDLos Alamitos, CA 907201750585345
  5. Mehrad Abedi, M.D.Sacramento, CA 958171467459222
  6. Oyewale Abidoye, M.D.La Jolla, CA 920371790841815
  7. Mohammed Abu Zaanona, MDSanta Barbara, CA 931051922591197
  8. Mohamad Adada, M.D., PHDRoseville, CA 956611528590734
  9. Jesse Adams, MDSacramento, CA 958251851479554
  10. Thompson Adams, MDSanta Monica, CA 904041407880891
  11. Camille Adeimy, MDUpland, CA 917861477785160
  12. David Adkins, MDModesto, CA 953551104883644
  13. Kent Adler, M.D.San Mateo, CA 944021013074632
  14. Mark AdlerVista, CA 920811174552533
  15. Adour Adrouny, M.D.San Jose, CA 951241447298955
  16. Richy Agajanian, M.D.Downey, CA 902411922116664
  17. Vandana Agarwal, MDPomona, CA 917671134124548
  18. Sangeeta Aggarwal, MDSan Jose, CA 951281225008394
  19. Neeraj Agnihotri, MDPalmdale, CA 935511598951873
  20. Vaibhav Agrawal, M.D.Duarte, CA 910101538402565
  21. Arshad Ahad, MDTorrance, CA 905051487647293
  22. Rohan AhluwaliaSanta Cruz, CA 950651053632356
  23. Delshad Ahmad, MDRancho Mirage, CA 922701043508666
  24. Rafi Ahmed, MDIrvine, CA 926181205093028
  25. Samina Ahmed, MDSanta Clara, CA 950511114180197
  26. Syed Ahmed, MDEl Centro, CA 922431023123288
  27. Jeffrey Ahn, M.D.Orange, CA 928681902331630
  28. Gorgun Akpek, M.D., M.H.S.San Luis Obispo, CA 934011124068515
  29. Kadhim Al Banaa, MDSan Diego, CA 921211548790041
  30. Ghassan Al-Jazayrly, M.D.Los Angeles, CA 900271679590566
  31. Ebaa Al-ObeidiSacramento, CA 958171619472693
  32. Alborz Alali, M.D.Woodland, CA 956951265458640
  33. Juan Alcantar, MDPorter Ranch, CA 913261972658540
  34. Edward Alexson, M.D.Santa Ana, CA 927051154363141
  35. Alain Algazi, M.D.San Francisco, CA 941431821289794
  36. Sarah Ali, MDMission Hills, CA 913451558547588
  37. Sonia Ali, M.D.La Jolla, CA 920371730451089
  38. Sultanali Alidina, M.D.Lakewood, CA 908051063411684
  39. Samer AlkassisIrvine, CA 926041124681515
  40. Kousay Alkourainy, M.D.Chula Vista, CA 919101457361271
  41. Alaa AltahanSan Jose, CA 951191952757684
  42. Kanchana Anand, MDFresno, CA 937201346398328
  43. Sidharth Anand, M.D.Westlake Village, CA 913611336453810
  44. Apoorva AnandanLos Angeles, CA 900331437653110
  45. Nicolaj Andersen, MDSanta Rosa, CA 954031659455640
  46. Ian Anderson, M.D.Santa Rosa, CA 954031518055573
  47. Swati Andhavarapu, M.DModesto, CA 953551225258668
  48. Jeffrey Andrey, M.D.La Jolla, CA 920371700851482
  49. Greg Angstreich, MDNewport Beach, CA 926631659303873
  50. Nenad Antic, MCLos Angeles, CA 900151346293883

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.