NPI Central

Doctors Who Treat Type 1 Diabetes in California

Providers in California whose specialty's scope covers type 1 diabetes— ranked by profile completeness & registry tenure, notby quality, outcomes, or who is "best".

1,633 active providers in California have a primary specialty that treats type 1 diabetes. We assert that these specialties treat type 1 diabetes, not that any specific provider treats your case. Open a city for a local list, or any provider for their full profile and map.

Providers in CA
1,633
Cities listed
40
Registry vintage
June 2026

Type 1 Diabetes specialists in California

Top 50 of 1,633
  1. 1
    Lakshmi SrinivasanMD

    Endocrinology, Diabetes & Metabolism Physician · Fremont, CA

    Approximate (ZIP-level)View full profile & map →
  2. 2
    George T. Yang, M.D., a Professional Corporation

    Endocrinology, Diabetes & Metabolism Physician · West Covina, CA

    Street-level locationView full profile & map →
  3. 3
    Southbay Endocrine Medical Associates Inc.

    Endocrinology, Diabetes & Metabolism Physician · Torrance, CA

    Street-level locationView full profile & map →
  4. 4
    Patrick RichardsMD

    Endocrinology, Diabetes & Metabolism Physician · Sacramento, CA

    Street-level locationView full profile & map →
  5. 5
    Rami AlrezkMD

    Endocrinology, Diabetes & Metabolism Physician · Murrieta, CA

    Street-level locationView full profile & map →
  6. 6
    Pediatric Endocrinology & Diabetes Cons

    Pediatric Endocrinology Physician · Bakersfield, CA

    Street-level locationView full profile & map →
  7. 7
    Deborah ChonM.D.

    Endocrinology, Diabetes & Metabolism Physician · Torrance, CA

    Street-level locationView full profile & map →
  8. 8
    Sasan FazeliM.D.

    Endocrinology, Diabetes & Metabolism Physician · Duarte, CA

    Street-level locationView full profile & map →
  9. 9
    Alexandra Villasante FrickeMD

    Endocrinology, Diabetes & Metabolism Physician · San Francisco, CA

    Street-level locationView full profile & map →
  10. 10
    Mandeep GillDO

    Endocrinology, Diabetes & Metabolism Physician · Fresno, CA

    Street-level locationView full profile & map →
  11. 11
    Kazem SeyedMD

    Endocrinology, Diabetes & Metabolism Physician · Hemet, CA

    Street-level locationView full profile & map →
  12. 12
    Aleem SyedMD

    Endocrinology, Diabetes & Metabolism Physician · Anaheim, CA

    Street-level locationView full profile & map →
  13. 13
    Drange Hallman Medical Corporation

    Endocrinology, Diabetes & Metabolism Physician · La Canada, CA

    Street-level locationView full profile & map →
  14. 14
    Jeffrey UngerM.D.

    Endocrinology, Diabetes & Metabolism Physician · Rancho Cucamonga, CA

    Street-level locationView full profile & map →
  15. 15
    Alison SemradD.O.

    Endocrinology, Diabetes & Metabolism Physician · Sacramento, CA

    Street-level locationView full profile & map →
  16. 16
    Meera RamayyaMD

    Pediatric Endocrinology Physician · Madera, CA

    Street-level locationView full profile & map →
  17. 17
    Thein KyawMD

    Endocrinology, Diabetes & Metabolism Physician · Bell Gardens, CA

    Street-level locationView full profile & map →
  18. 18
    Heidi ButzNP

    Endocrinology, Diabetes & Metabolism Physician · Los Angeles, CA

    Street-level locationView full profile & map →
  19. 19
    Frank HuangMD

    Endocrinology, Diabetes & Metabolism Physician · Lodi, CA

    Street-level locationView full profile & map →
  20. 20
    Yaroslav A. Gofnung, M.D., Inc.

    Endocrinology, Diabetes & Metabolism Physician · North Hollywood, CA

    Street-level locationView full profile & map →
  21. 21
    Justin AnnesM.D.

    Endocrinology, Diabetes & Metabolism Physician · Stanford, CA

    Approximate (ZIP-level)View full profile & map →
  22. 22
    Endocrinology Med Assoc Cho

    Pediatric Endocrinology Physician · Oakland, CA

    Street-level locationView full profile & map →
  23. 23
    Jennifer RaymondM.D., M.C.R.

    Pediatric Endocrinology Physician · Los Angeles, CA

    Street-level locationView full profile & map →
  24. 24
    Ann KershnarMD

    Pediatric Endocrinology Physician · Bellflower, CA

    Street-level locationView full profile & map →
  25. 25
    Janet WinikoffMD

    Endocrinology, Diabetes & Metabolism Physician · Santa Monica, CA

    Approximate (ZIP-level)View full profile & map →
  26. 26
    Laurence KatznelsonMD

    Endocrinology, Diabetes & Metabolism Physician · Los Angeles, CA

    Street-level locationView full profile & map →
  27. 27
    Michael OlerichMD

    Endocrinology, Diabetes & Metabolism Physician · Anaheim, CA

    Approximate (ZIP-level)View full profile & map →
  28. 28
    Daina DreimaneMD

    Pediatric Endocrinology Physician · Orange, CA

    Street-level locationView full profile & map →
  29. 29
    Ashley ThorsellM.D.

    Endocrinology, Diabetes & Metabolism Physician · Santa Barbara, CA

    Street-level locationView full profile & map →
  30. 30
    Cristina Candido-VittoMD

    Pediatric Endocrinology Physician · Santa Barbara, CA

    Street-level locationView full profile & map →
  31. 31
    Maria ArambuloMD

    Endocrinology, Diabetes & Metabolism Physician · Fresno, CA

    Street-level locationView full profile & map →
  32. 32
    Shreela MishraMD

    Endocrinology, Diabetes & Metabolism Physician · Fresno, CA

    Street-level locationView full profile & map →
  33. 33
    Gerald BishopM.D.

    Endocrinology, Diabetes & Metabolism Physician · Rancho Cordova, CA

    Street-level locationView full profile & map →
  34. 34
    Mark AndersonMD

    Endocrinology, Diabetes & Metabolism Physician · San Francisco, CA

    Street-level locationView full profile & map →
  35. 35
    Andrea TomM.D.

    Endocrinology, Diabetes & Metabolism Physician · San Carlos, CA

    Street-level locationView full profile & map →
  36. 36
    David KendallM.D.

    Endocrinology, Diabetes & Metabolism Physician · San Diego, CA

    Street-level locationView full profile & map →
  37. 37
    Mitchell CohenM.D.

    Endocrinology, Diabetes & Metabolism Physician · Los Angeles, CA

    Street-level locationView full profile & map →
  38. 38
    Ivan MartinezM.D.

    Endocrinology, Diabetes & Metabolism Physician · Anaheim Hills, CA

    Street-level locationView full profile & map →
  39. 39
    Oona KhanM.D.

    Endocrinology, Diabetes & Metabolism Physician · Beverly Hills, CA

    Street-level locationView full profile & map →
  40. 40
    Grace ChanMD

    Endocrinology, Diabetes & Metabolism Physician · Palo Alto, CA

    Street-level locationView full profile & map →
  41. 41
    Andrew GianoukakisM.D.

    Endocrinology, Diabetes & Metabolism Physician · Torrance, CA

    Street-level locationView full profile & map →
  42. 42
    Dennis StyneM.D.

    Pediatric Endocrinology Physician · Sacramento, CA

    Street-level locationView full profile & map →
  43. 43
    Michael TruongM.D.

    Endocrinology, Diabetes & Metabolism Physician · Mission Viejo, CA

    Street-level locationView full profile & map →
  44. 44
    Nelson MadrilejoMD

    Endocrinology, Diabetes & Metabolism Physician · Bakersfield, CA

    Street-level locationView full profile & map →
  45. 45
    Merl CharlesMD PHD

    Endocrinology, Diabetes & Metabolism Physician · San Francisco, CA

    Street-level locationView full profile & map →
  46. 46
    Paul a Fitzgerald MD Inc

    Endocrinology, Diabetes & Metabolism Physician · San Francisco, CA

    Street-level locationView full profile & map →
  47. 47
    Marina BasinaMD

    Endocrinology, Diabetes & Metabolism Physician · Stanford, CA

    Approximate (ZIP-level)View full profile & map →
  48. 48
    Anjana HarnoorMD

    Endocrinology, Diabetes & Metabolism Physician · Union City, CA

    Street-level locationView full profile & map →
  49. 49
    Andrew ReikesMD

    Endocrinology, Diabetes & Metabolism Physician · Orange, CA

    Approximate (ZIP-level)View full profile & map →
  50. 50
    Erene SamiM.D.

    Endocrinology, Diabetes & Metabolism Physician · Mission Viejo, CA

    Street-level locationView full profile & map →

These are active providers in California whose primary NUCC specialty treats type 1 diabetes; it is not a list of providers confirmed to treat your specific case, and absence does not mean a provider does not treat it. Ordering reflects NPPES profile completeness and registry tenure — a transparency signal, not a quality, outcome, or "best" ranking. Condition-to-specialty mapping: MedlinePlus, NIH, ABMS. Source: CMS NPPES (June 2026); specialty taxonomy: NUCC.