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 2 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. Asma Anwar, MDSanta Barbara, CA 931051972773539
  2. Steven Applebaum, MDPasadena, CA 911051295760221
  3. Belinda Ark, MDModesto, CA 953561366520272
  4. Amit Arora, M.D.Fremont, CA 945381386722130
  5. Mili Arora, MDSacramento, CA 958171023249422
  6. Ravinder Arora, MDSan Leandro, CA 945781952307720
  7. Shagun Arora, MDSan Francisco, CA 941431316198112
  8. Kristin Arreola, M.D.Roseville, CA 956611518166677
  9. Junaid ArshadLakewood, CA 908051831506898
  10. Steven Artandi, M.D.Stanford, CA 943051548352909
  11. Zhaohui Arter, MDOrange, CA 928681184116451
  12. Arun Kumar Arumugam Raajasekar, MDMountain View, CA 940401801143722
  13. Karo Arzoo, M.D.Burbank, CA 915051306862859
  14. Hannah Asghari, MDLancaster, CA 935341891114583
  15. Shahryar Ashouri, M.D.Westlake Village, CA 913611609946169
  16. Devi Jane Asuncion, MDAnaheim, CA 928071538367875
  17. Joshua Atiba, MDLa Selva Beach, CA 950761689756546
  18. Shirin Attarian, M.D.Orange, CA 928681427310713
  19. Cherry AuLos Angeles, CA 900891346828076
  20. Mouni Audeh, M.D.West Hollywood, CA 900481265592174
  21. David Austin, MDManhattan Beach, CA 902661114930435
  22. V. Reddy Avula, MDFresno, CA 937201740209295
  23. Nelly Awkar Lazo, M.DDowney, CA 902411326351537
  24. Keith Ayrons, M.D.Santa Maria, CA 934541831143775
  25. Ashraf Aziz, MDAnaheim, CA 928071386715365
  26. Shehzad Aziz, M.D.Salinas, CA 939011295732410
  27. Nikita Baclig, M.D.Santa Monica, CA 904041649632696
  28. David Baer, MDOakland, CA 946111780762575
  29. Boris Bagdasarian, D.O.Glendale, CA 912061598758062
  30. Dilprit Bagga, MDMission Hills, CA 913451427262757
  31. Bahareh Bahadini, MDThousand Oaks, CA 913611295734614
  32. Wei Bai, MDSanta Maria, CA 934541053567545
  33. Kamila Bakirhan, M.D.Torrance, CA 905031407118961
  34. Donald Balfour, M.D.San Diego, CA 921011942217872
  35. Natasha Banerjee, M.D.Torrance, CA 905091356668065
  36. Mussa Banisadre, MDModesto, CA 953501043264690
  37. Eric Bank, M.D.Solvang, CA 934631720423882
  38. Daljeet Bansal, MDLoma Linda, CA 923571972691046
  39. Warren Banta, MDLos Angeles, CA 900331861695678
  40. Rehana Baqai, M.D.Corona, CA 928791164478855
  41. Mohamad BarakatHuntington Beach, CA 926481558534131
  42. Aditya Bardia, MDSanta Monica, CA 904041639210107
  43. John Barstis, MDValencia, CA 913551528093085
  44. Neil Barth, M.D.Newport Beach, CA 926601245379858
  45. Babak Baseri, M.D.Cerritos, CA 907031659716959
  46. Reema Batra, MDLa Mesa, CA 919421629286505
  47. Gerald Battersby, MDFontana, CA 923351467511030
  48. Asnakech Bayable, MDRancho Mirage, CA 922701881198778
  49. Lyudmila Bazhenova, M.D.San Diego, CA 921031093791006
  50. David Beard, MDWoodland Hills, CA 913671043379704

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.