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 17 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. Nancy Lee, M.D.San Diego, CA 921541881869998
  2. Nara Lee, MDLos Angeles, CA 900891881093813
  3. Peter Lee, M.DSan Mateo, CA 944031992724272
  4. Raymond Lee, M.D.San Jose, CA 951161053317818
  5. Sang Hoon Lee, M.D.San Jose, CA 951281851346100
  6. Thomas Lee, M.D.Anaheim, CA 928071891871869
  7. Tom Lee, M. D.Oakland, CA 946091659458883
  8. Yurhee Lee, M.D.Santa Barbara, CA 931051457887606
  9. Robert Leibowitz, MDLos Angeles, CA 900671841253192
  10. Christopher Lemieux, MDStanford, CA 943051255988341
  11. Inga Lennes, M.D.San Francisco, CA 941431427134568
  12. Susan Lessin, M.D.Sunnyvale, CA 940851629066618
  13. Abraham Leung, MDRedwood City, CA 940631134208267
  14. Millie Leung, MDBaldwin Park, CA 917061215085162
  15. Alexis Levee, MDSanta Monica, CA 904041275192932
  16. Robert Levin, MDInglewood, CA 903051932186467
  17. Wendy Levin, MDSan Diego, CA 921211649360595
  18. Lee Levitt, MDSan Jose, CA 951281386600211
  19. Robert Levy, MDModesto, CA 953551568473965
  20. Brian Lewis, MDSan Anselmo, CA 949601467530089
  21. Daniel Lewis, M.D.San Luis Obispo, CA 934011598749079
  22. Allen Li, MD, MSModesto, CA 953551265827554
  23. Jiali Li, M.D., PH.DMountain View, CA 940401396981445
  24. Li Li, M.D.Clovis, CA 936111528355120
  25. Ming Li, MDMission Viejo, CA 926911770843054
  26. Tianhong Li, MD,PH.DSacramento, CA 958171588744072
  27. Yan Li, MDOakland, CA 946111821162413
  28. Emily Liang, MDStanford, CA 943051104385293
  29. John Liang, MDBaldwin Park, CA 917061700957685
  30. Howard Liebman, M.D.Los Angeles, CA 900891134159775
  31. Kiem Liem, M.D.Long Beach, CA 908081407875982
  32. Nelson Lim, MDMartinez, CA 945531093786592
  33. Chainarong Limvarapuss, MDVallejo, CA 945891053341784
  34. Edwin Lin, M.D.Whittier, CA 906021477755288
  35. Rick LinDuarte, CA 910101245989557
  36. Tasha Lin, MDMarina Del Rey, CA 902921912343674
  37. Yuankai Lin, MD, PHDSan Francisco, CA 941101831432988
  38. Tiberio Lindgren, MDOrange, CA 928681275585424
  39. Huichung Ling, M.D.Fremont, CA 945381740213107
  40. John Link, MDOrange, CA 928681245281211
  41. Steven Lipkin, MDOrange, CA 928681134153547
  42. Aaron Lisberg, MDSanta Monica, CA 904041043509797
  43. Chunnan Liu, MDWalnut Creek, CA 945961154409720
  44. Nina Liu, MDSan Diego, CA 921201801944756
  45. Raymond Liu, M.D.San Francisco, CA 941431376645861
  46. Sandy Liu, M.D.Orange, CA 928681174808224
  47. Yang Liu, M.D., PH.D.Salinas, CA 939011922260504
  48. Ernest Lo, MDCameron Park, CA 956821538482328
  49. Aaron Logan, MD, PHDSan Francisco, CA 941431801076633
  50. Ming-Swang Lok, MDSan Bernardino, CA 924041548752371

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.