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 16 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. Eric Kuo, MDSan Mateo, CA 944011962907014
  2. Samuel Kuo, M.D.Tulare, CA 932741861478422
  3. Daniel Kwon, MDSan Francisco, CA 941431396139515
  4. Myron Kwong, MDSan Jose, CA 951191992881403
  5. Sungwon Kyung, M.D.Los Angeles, CA 900171831501840
  6. Hanh La, M.D.Carmichael, CA 956081316143902
  7. Paul La Porte, M.D., PH.D.Cerritos, CA 907031962760074
  8. Julia Labarbera, NPSanta Monica, CA 904041831614098
  9. Steven Lai, MDSanta Cruz, CA 950651295364321
  10. David Lakes, MDSan Anselmo, CA 949601558445536
  11. Ram Lalchandani, M.D.Carmichael, CA 956081114993813
  12. Bao Lam, M.D.San Leandro, CA 945781639354970
  13. Kentson Lam, M.D., PH.D.San Diego, CA 921031417311325
  14. Kit Lam, M.D., PH.D.Sacramento, CA 958171306829577
  15. Joel Lamon, MDSan Diego, CA 921271699721035
  16. Ann Lanzerotti, M.D.San Francisco, CA 941151104227826
  17. Ginna Laport, M.D.Stanford, CA 943051144370743
  18. Primo Lara, M.D.Sacramento, CA 958171972585743
  19. Christopher Larson, M.D.San Diego, CA 921031558592121
  20. Krisztina Larson, M.D.Burbank, CA 915051558703363
  21. Sarah Larson, M.D.Los Angeles, CA 900951588820955
  22. Ashkan Lashkari, MDWest Hills, CA 913071528284627
  23. Derick Lau, M.D., PH.D.Sacramento, CA 958171801879077
  24. Eric Lau, D.O.Palo Alto, CA 943011891182465
  25. Amy Law, M.D.Rancho Mirage, CA 922701861452054
  26. Lisa Law, M.D.Roseville, CA 956611548242308
  27. William Lawler, MDFullerton, CA 928351700886702
  28. Hugh Lawrence, M.D.San Francisco, CA 941211386752848
  29. Susan Lawrence, MDLancaster, CA 935341275653065
  30. Gary Lazar, M.D.Encino, CA 913161861769341
  31. Hoa Le, M.D.Orange, CA 928681508049073
  32. Benjamin Leach, M.D.Mission Hills, CA 913451497026140
  33. Jacob Leary, MDLa Jolla, CA 920931932777125
  34. Brian Leberthon, M.D.West Covina, CA 917901326023979
  35. Blanca Ledezma, MSN, NPSanta Monica, CA 904041124253323
  36. Byung Lee, D.OLos Angeles, CA 900331780975136
  37. Charlene Lee, MDSan Jose, CA 951161831488337
  38. Daniel Lee, M.D.Vallejo, CA 945891780949131
  39. Edmond Lee, MDMonterey Park, CA 917541790843365
  40. Eric Lee, M.D., PH.D.Fountain Valley, CA 927081609211838
  41. Fa-Chyi Lee, M.D.Orange, CA 928681366594855
  42. Hannah Lee, MDLos Angeles, CA 900481609238237
  43. Howard Lee, MDSunnyvale, CA 940861265992689
  44. James Lee, M.D.San Francisco, CA 941431346482007
  45. Jennifer Lee, M.D.Torrance, CA 905021164798062
  46. Jerry Lee, MDSan Francisco, CA 941431770087124
  47. John Lee, M.D.Los Angeles, CA 900951114194057
  48. Lisa Lee, M.D.Irvine, CA 926181144583733
  49. Michael Lee, MDSan Jose, CA 951191629631296
  50. Monica Lee, M.D.Fullerton, CA 928351215129309

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.