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 11 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. Huan Ha, M.D.Fremont, CA 945381205958360
  2. Leonard Hackett, M.D.Fresno, CA 937201669466868
  3. Navid Hafez, M.D.Los Angeles, CA 900251740505007
  4. Steven Hager, D.O.Fresno, CA 937201326087917
  5. Clan Hahn, M.D.Los Angeles, CA 900201023043189
  6. Karen Haiber, MDPasadena, CA 911051720519127
  7. George Hajjar, MDSanta Clarita, CA 913551619978715
  8. Solomon Hamburg, M.D.Encino, CA 914361801892302
  9. Ayad Hamdan, M.D.La Jolla, CA 920931144431230
  10. Zahra Sadat Hamedi, MDOrange, CA 928681053974451
  11. Omid Hamid, M.D.Santa Monica, CA 904041215966775
  12. Andrew Hampshire, M.D.San Diego, CA 921031073559068
  13. Dilruba Haque, M.D.Newport Beach, CA 926631689838641
  14. Wael Harb, MDNewport Beach, CA 926601861468415
  15. Sonali Harchandani, M.D.San Francisco, CA 941431538588322
  16. Sabrina Hardy, MDThousand Oaks, CA 913611821595638
  17. Nisha Hariharan, MDBerkeley, CA 947021679004543
  18. Gary Harkins, M.D.San Luis Obispo, CA 934011942204375
  19. Theresa HarnedDuarte, CA 910101740305630
  20. David Harrison, M.D.San Luis Obispo, CA 934011346265436
  21. Andrea Harzstark, MDSan Francisco, CA 941431871766576
  22. Abdul Haseeb, M.D.Fresno, CA 937201407897093
  23. Charles Haskell, MDLos Angeles, CA 900951114945714
  24. Sarah Hassan, M.DFountain Valley, CA 927081689935066
  25. Bruce Hayton, M.D.Wildomar, CA 925951710030192
  26. John Hayward, MDChico, CA 959261376539411
  27. Edward Hearn, MDSacramento, CA 958251902984651
  28. Joel Hecht, MDLos Angeles, CA 900951790703742
  29. Ted Heckman, MDParadise, CA 959691730143116
  30. James Heckmann, MDMountain View, CA 940401487660023
  31. Teresa Helsten, M.D.La Jolla, CA 920931265408678
  32. Derek Helton, M.D.Vista, CA 920811801992839
  33. Brian Henderson, M.D.San Mateo, CA 944011497846901
  34. Andrew Hendifar, MD, MPHWest Hollywood, CA 900481649473414
  35. Kathryn Henick, M.D.Santa Monica, CA 904041912972779
  36. Sheldon Herman, MDLos Angeles, CA 900951275551889
  37. David Hermel, MDLa Jolla, CA 920371043673734
  38. Amanda HerrmannLa Jolla, CA 920931801390638
  39. Julie Hersch, MDRoseville, CA 956611831263433
  40. Raymond Heung, M.D.San Diego, CA 921171699772756
  41. Dennis Hilliard, M.D.San Bernardino, CA 924041659355691
  42. Sanjay Hinduja, MDClovis, CA 936111902224934
  43. Tin Hla, M.D.San Jose, CA 951161326098179
  44. Carrie Ho, M.D.San Francisco, CA 941431720514821
  45. Cheryl Ho, M.D.Sacramento, CA 958171912982729
  46. Christopher Ho, M.D.West Hills, CA 913071972774958
  47. Jason Ho, M.D.Los Angeles, CA 900171174735658
  48. Linda Hoang, M.D.Redwood City, CA 940631811253214
  49. Rasmus Hoeg, M.D.Sacramento, CA 958171548468358
  50. David Hoffman, M.D.Beverly Hills, CA 902111538165675

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.