NPI Central

Tirzepatide (Mounjaro, Zepbound) Prescribers in California

Ranked by documented Medicare Part D claim volume (2024).

5,599 providers in California have Medicare Part D claims for tirzepatide. Ordering reflects documented Part D claim volume — a transparency signal, not a quality or "best" ranking. Open any provider for their full profile and what they prescribe under Medicare.

Prescribers in CA
5,599
Data year
2024
Registry vintage
June 2026

tirzepatide prescribers in California

Ranked by Part D claim volume.
  1. 1

    Cardiovascular Disease Physician · Los Angeles, CA

    1,751 Medicare Part D claims (2024)

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  2. 2

    Endocrinology, Diabetes & Metabolism Physician · San Carlos, CA

    957 Medicare Part D claims (2024)

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  3. 3

    Endocrinology, Diabetes & Metabolism Physician · San Dimas, CA

    734 Medicare Part D claims (2024)

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  4. 4

    Endocrinology, Diabetes & Metabolism Physician · Beverly Hills, CA

    661 Medicare Part D claims (2024)

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  5. 5

    Endocrinology, Diabetes & Metabolism Physician · Woodland Hills, CA

    657 Medicare Part D claims (2024)

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  6. 6

    Endocrinology, Diabetes & Metabolism Physician · Glendale, CA

    651 Medicare Part D claims (2024)

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  7. 7

    Endocrinology, Diabetes & Metabolism Physician · Rancho Santa Margarita, CA

    611 Medicare Part D claims (2024)

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  8. 8

    Nurse Practitioner · Maywood, CA

    600 Medicare Part D claims (2024)

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  9. 9

    General Practice Physician · Chico, CA

    585 Medicare Part D claims (2024)

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  10. 10

    Internal Medicine Physician · West Hollywood, CA

    550 Medicare Part D claims (2024)

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  11. 11

    Family Nurse Practitioner · Fresno, CA

    537 Medicare Part D claims (2024)

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  12. 12

    Nephrology Physician · Los Angeles, CA

    518 Medicare Part D claims (2024)

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  13. 13

    Endocrinology, Diabetes & Metabolism Physician · San Jose, CA

    507 Medicare Part D claims (2024)

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  14. 14

    Endocrinology, Diabetes & Metabolism Physician · Rancho Mirage, CA

    505 Medicare Part D claims (2024)

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  15. 15

    Nephrology Physician · West Hollywood, CA

    498 Medicare Part D claims (2024)

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  16. 16

    Endocrinology, Diabetes & Metabolism Physician · Stanford, CA

    471 Medicare Part D claims (2024)

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  17. 17

    Family Nurse Practitioner · Fountain Valley, CA

    471 Medicare Part D claims (2024)

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  18. 18

    Endocrinology, Diabetes & Metabolism Physician · Los Angeles, CA

    460 Medicare Part D claims (2024)

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  19. 19

    Nephrology Physician · El Centro, CA

    458 Medicare Part D claims (2024)

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  20. 20

    Endocrinology, Diabetes & Metabolism Physician · Glendale, CA

    440 Medicare Part D claims (2024)

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  21. 21

    General Practice Physician · Santa Ana, CA

    439 Medicare Part D claims (2024)

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  22. 22

    Endocrinology, Diabetes & Metabolism Physician · Newport Beach, CA

    436 Medicare Part D claims (2024)

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  23. 23

    Endocrinology, Diabetes & Metabolism Physician · San Diego, CA

    435 Medicare Part D claims (2024)

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  24. 24

    Endocrinology, Diabetes & Metabolism Physician · Long Beach, CA

    429 Medicare Part D claims (2024)

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  25. 25

    Endocrinology, Diabetes & Metabolism Physician · Lomita, CA

    422 Medicare Part D claims (2024)

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  26. 26

    Endocrinology, Diabetes & Metabolism Physician · Beverly Hills, CA

    422 Medicare Part D claims (2024)

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  27. 27

    Endocrinology, Diabetes & Metabolism Physician · Sacramento, CA

    420 Medicare Part D claims (2024)

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  28. 28

    Family Medicine Physician · Rancho Mirage, CA

    418 Medicare Part D claims (2024)

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  29. 29

    Endocrinology, Diabetes & Metabolism Physician · San Francisco, CA

    410 Medicare Part D claims (2024)

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  30. 30
    Ali EnayatiM.D., M.P.H.

    Internal Medicine Physician · Los Angeles, CA

    409 Medicare Part D claims (2024)

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  31. 31

    Cardiovascular Disease Physician · Anaheim, CA

    398 Medicare Part D claims (2024)

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  32. 32

    Internal Medicine Physician · Reseda, CA

    396 Medicare Part D claims (2024)

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  33. 33

    Endocrinology, Diabetes & Metabolism Physician · Redding, CA

    394 Medicare Part D claims (2024)

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  34. 34

    Internal Medicine Physician · Glendale, CA

    394 Medicare Part D claims (2024)

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  35. 35

    Internal Medicine Physician · Visalia, CA

    382 Medicare Part D claims (2024)

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  36. 36

    Internal Medicine Physician · Northridge, CA

    379 Medicare Part D claims (2024)

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  37. 37

    Internal Medicine Physician · San Bernardino, CA

    376 Medicare Part D claims (2024)

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  38. 38

    Endocrinology, Diabetes & Metabolism Physician · Encino, CA

    365 Medicare Part D claims (2024)

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  39. 39

    Endocrinology, Diabetes & Metabolism Physician · Monterey, CA

    364 Medicare Part D claims (2024)

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  40. 40

    Endocrinology, Diabetes & Metabolism Physician · Monterey, CA

    364 Medicare Part D claims (2024)

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  41. 41

    Endocrinology, Diabetes & Metabolism Physician · Irvine, CA

    360 Medicare Part D claims (2024)

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  42. 42

    Cardiovascular Disease Physician · Los Angeles, CA

    353 Medicare Part D claims (2024)

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  43. 43

    Nurse Practitioner · Fullerton, CA

    352 Medicare Part D claims (2024)

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  44. 44

    Internal Medicine Physician · Tustin, CA

    349 Medicare Part D claims (2024)

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  45. 45

    Family Medicine Physician · Los Angeles, CA

    340 Medicare Part D claims (2024)

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  46. 46

    Family Nurse Practitioner · Encino, CA

    337 Medicare Part D claims (2024)

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  47. 47

    Endocrinology, Diabetes & Metabolism Physician · Los Gatos, CA

    337 Medicare Part D claims (2024)

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  48. 48

    Endocrinology, Diabetes & Metabolism Physician · San Francisco, CA

    335 Medicare Part D claims (2024)

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  49. 49

    Family Nurse Practitioner · Bakersfield, CA

    334 Medicare Part D claims (2024)

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  50. 50

    Endocrinology, Diabetes & Metabolism Physician · San Diego, CA

    330 Medicare Part D claims (2024)

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Medicare Part D only. Counts and ordering reflect Medicare Part D claims (2024) from CMS — they exclude cash-pay, commercial, and Medicaid prescriptions and undercount cash-pay categories (e.g. GLP-1 weight-loss, testosterone). Not a quality or "best" ranking. Absence does not mean a provider does not prescribe tirzepatide. Source: CMS NPPES (June 2026).