NPPES file of Aug 9, 2026

Endocrinology, Diabetes & Metabolism Physician in California

1,131 NPPES records list endocrinology, diabetes & metabolism physician with a practice address in California, 2.9 per 100,000 residents, the 19th highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 9 of 23.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RE0101X · 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, 106

  1. Los Angeles106
  2. San Francisco78
  3. San Diego66
  4. Sacramento41
  5. Torrance36

Endocrinology, Diabetes & Metabolism Physician records in California

  1. Hadi Harati, M.D.Riverside, CA 925051376984351
  2. Susana Harbutt, M.D.Castro Valley, CA 945461588007678
  3. Anjana Harnoor, MDUnion City, CA 945871023196839
  4. Samantha Harris, M.D.San Diego, CA 921301720305436
  5. Steven Harris, M.D.San Francisco, CA 941151104847532
  6. Sima Hassani, MDWoodland Hills, CA 913671093863896
  7. Steffan Havas, M.D.Torrance, CA 905031841266707
  8. Tahir Haytoglu, MDCorona, CA 928791932609054
  9. Anthony Heaney, M.D.Los Angeles, CA 900951720016850
  10. David Heber, MDLos Angeles, CA 900951972522589
  11. Marc Hellerstein, M.D.San Francisco, CA 941101780884098
  12. Edward Hess, MDFontana, CA 923351952478877
  13. Gamini Hethumuni, MDSan Gabriel, CA 917761659459824
  14. Celina Hetnal, MDModesto, CA 953551831156389
  15. Heather Hofflich, DOLa Jolla, CA 920371598962102
  16. Andrew Hoffman, M.D.Stanford, CA 943051619924685
  17. Laura Hoffman, MDSacramento, CA 958251700964467
  18. Kalman Holdy, M.D.San Diego, CA 921221285746073
  19. Elizabeth Holt, MDSan Francisco, CA 941431184607392
  20. Kent Holtorf, M.D.Torrance, CA 905051427206135
  21. Charles Holzner, M.D.Downey, CA 902401861439465
  22. Ken Honbo, MD FACEEncino, CA 914361922185735
  23. Jennifer Hone, MDSanta Barbara, CA 931101104823954
  24. Richard Horton, MDLong Beach, CA 908031376865378
  25. Robert Horvat, MD, PHDMariposa, CA 953381841279668
  26. Nadeen Hosein, M.D.San Diego, CA 921031912051715
  27. Alireza Hosseini, MDMission Viejo, CA 926911629324140
  28. Karen Hougo, M.D.Santa Barbara, CA 931111790910677
  29. Sophia Hox, D.O.Mather, CA 956551891733390
  30. Elisa Hsia, MDDowney, CA 902421073711701
  31. Stanley Hsia, M.D.Los Angeles, CA 900591841300647
  32. Edward Hsiao, M.D., PH.D.San Francisco, CA 941211750316030
  33. Joseph Hsiao, MDOrange, CA 928691699139287
  34. Victoria Hsiao, MD, PHDSan Francisco, CA 941431659418655
  35. Timothy Hsieh, MDLos Angeles, CA 900341821157405
  36. Frank Hsu, M.D.Hayward, CA 945411295800365
  37. Cindy Huang, MDLos Angeles, CA 900171356570063
  38. Frank Huang, MDLodi, CA 952401013023274
  39. Jannet Huang, MDIrvine, CA 926141497796049
  40. Jean Huang, MDFremont, CA 945381265752380
  41. Jonathan Huang, MDNewport Beach, CA 926631740749852
  42. Thomas Huang, M.D.Arcadia, CA 910061740439967
  43. Christopher Hupfeld, M.D.Oceanside, CA 920561568429165
  44. Carolina Hurtado, M.D.Los Angeles, CA 900891669891263
  45. Maximiliano Hyon, D.O.Fullerton, CA 928351942626767
  46. Almoatazbellah Idriss, MDTustin, CA 927801881649853
  47. Aldo Ilarde, MDVentura, CA 930031639253735
  48. Sonaina Imtiaz, MDFullerton, CA 928331376959510
  49. Eli Ipp, M.D.Torrance, CA 905021134182629
  50. Kent Ishihara, M.D.Sacramento, CA 958171679658280

Source: CMS NPPES, primary taxonomy 207RE0101X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 19 of 51 per resident

  1. Delaware3.0
  2. Ohio3.0
  3. Vermont2.9
  4. California2.9
  5. Florida2.9
  6. Washington2.9
  7. 50 states and D.C.3.1

Source: CMS NPPES, primary taxonomy 207RE0101X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

83.7% of these records appear in a Medicare file, against 83.6% 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. California83.7%
  2. United States83.6%

Endocrinology, Diabetes & Metabolism Physician records in California, measured

  • In a Medicare file947 of 1,131 · 83.7% here, 83.6% nationally
  • In the CMS Doctors and Clinicians file780 · 69.0% here, 70.3% nationally
  • Not updated in five years or more643 · 56.9% here, 54.5% nationally
  • Median graduation year2003 · the 779 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RE0101X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,131 NPPES records list endocrinology, diabetes & metabolism physician (207RE0101X) as their primary taxonomy with a practice address in California: 2.9 per 100,000 residents against 3.1 nationally (50 states and D.C.). Los Angeles has 106 of them (9%).

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 York970
  2. Texas743
  3. Florida656
  4. Massachusetts522

States with a similar rate per 100,000

  1. Vermont2.9
  2. Washington2.9
  3. Ohio3.0
  4. Delaware3.0

The largest states

  1. New York970
  2. Texas743
  3. Florida656
  4. Massachusetts522
  5. Pennsylvania485

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.