NPI Central

Who Prescribes Metformin (Glucophage, Fortamet)?

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

260,323 providers have Medicare Part D claims for metformin (sold as Glucophage, Fortamet). Open a state for the local directory, or any provider for their full profile. Ordering reflects documented Part D claim volume — a transparency signal, not a quality or "best" ranking.

Prescribers (Part D)
260,323
Data year
2024
Registry vintage
June 2026

Top metformin prescribers (Medicare Part D)

A sample, ranked by Part D claim volume.
  1. 1

    Geriatric Medicine (Internal Medicine) Physician · Plymouth Meeting, PA

    7,469 Medicare Part D claims (2024)

    View profile →
  2. 2

    Endocrinology, Diabetes & Metabolism Physician · Rego Park, NY

    4,628 Medicare Part D claims (2024)

    View profile →
  3. 3

    Family Medicine Physician · Albany, GA

    3,714 Medicare Part D claims (2024)

    View profile →
  4. 4

    Internal Medicine Physician · Houston, TX

    3,628 Medicare Part D claims (2024)

    View profile →
  5. 5

    Family Medicine Physician · Tucker, GA

    3,562 Medicare Part D claims (2024)

    View profile →
  6. 6

    Internal Medicine Physician · Chicago, IL

    3,371 Medicare Part D claims (2024)

    View profile →
  7. 7
    Abbas HasnainM.D., J.D.

    Internal Medicine Physician · Fresno, CA

    3,294 Medicare Part D claims (2024)

    View profile →
  8. 8

    General Practice Physician · Jackson, MS

    3,214 Medicare Part D claims (2024)

    View profile →
  9. 9

    Family Medicine Physician · Gray, GA

    3,175 Medicare Part D claims (2024)

    View profile →
  10. 10

    Psychiatry Physician · Ada, OK

    3,130 Medicare Part D claims (2024)

    View profile →
  11. 11

    Family Medicine Physician · Glendale, CA

    3,099 Medicare Part D claims (2024)

    View profile →
  12. 12

    Geriatric Medicine (Family Medicine) Physician · Hendersonville, TN

    3,080 Medicare Part D claims (2024)

    View profile →
  13. 13

    Family Medicine Physician · Peoria, IL

    3,056 Medicare Part D claims (2024)

    View profile →
  14. 14

    Endocrinology, Diabetes & Metabolism Physician · Flushing, NY

    3,042 Medicare Part D claims (2024)

    View profile →
  15. 15

    Internal Medicine Physician · Swansea, IL

    2,863 Medicare Part D claims (2024)

    View profile →
  16. 16

    Endocrinology, Diabetes & Metabolism Physician · Mayaguez, PR

    2,831 Medicare Part D claims (2024)

    View profile →
  17. 17

    Family Medicine Physician · Macon, GA

    2,775 Medicare Part D claims (2024)

    View profile →
  18. 18

    Family Medicine Physician · Kewanee, IL

    2,752 Medicare Part D claims (2024)

    View profile →
  19. 19

    Family Medicine Physician · Du Bois, PA

    2,611 Medicare Part D claims (2024)

    View profile →
  20. 20

    Internal Medicine Physician · Santa Ana, CA

    2,599 Medicare Part D claims (2024)

    View profile →
  21. 21

    Endocrinology, Diabetes & Metabolism Physician · Philadelphia, PA

    2,582 Medicare Part D claims (2024)

    View profile →
  22. 22

    Internal Medicine Physician · Wolcott, CT

    2,522 Medicare Part D claims (2024)

    View profile →
  23. 23

    Internal Medicine Physician · Weston, MA

    2,510 Medicare Part D claims (2024)

    View profile →
  24. 24

    Family Medicine Physician · Barranquitas, PR

    2,422 Medicare Part D claims (2024)

    View profile →
  25. 25

    Internal Medicine Physician · Town and Country, MO

    2,376 Medicare Part D claims (2024)

    View profile →
  26. 26

    Internal Medicine Physician · Flushing, NY

    2,355 Medicare Part D claims (2024)

    View profile →
  27. 27

    Family Medicine Physician · Brooklyn, NY

    2,289 Medicare Part D claims (2024)

    View profile →
  28. 28

    Internal Medicine Physician · Perry, GA

    2,277 Medicare Part D claims (2024)

    View profile →
  29. 29

    Internal Medicine Physician · Plymouth Meeting, PA

    2,270 Medicare Part D claims (2024)

    View profile →
  30. 30

    Family Medicine Physician · Cave Spring, GA

    2,267 Medicare Part D claims (2024)

    View profile →

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 from this list does not mean a provider does not prescribe metformin.