Metformin (Glucophage, Fortamet) Prescribers in Illinois

1. 1
   Chandra AnandMD

   Internal Medicine Physician · Chicago, IL

   3,371 Medicare Part D claims (2024)

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2. 2
   Ziad MusaitifDO

   Family Medicine Physician · Peoria, IL

   3,056 Medicare Part D claims (2024)

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3. 3
   Charles AmpaduMD

   Internal Medicine Physician · Swansea, IL

   2,863 Medicare Part D claims (2024)

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4. 4
   Michael AhearnMD

   Family Medicine Physician · Kewanee, IL

   2,752 Medicare Part D claims (2024)

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5. 5
   Vivek GuptaM.D.

   Internal Medicine Physician · Chicago, IL

   2,240 Medicare Part D claims (2024)

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6. 6
   Rajiv KandalaM.D.

   Family Medicine Physician · Chicago, IL

   2,092 Medicare Part D claims (2024)

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7. 7
   Tom KleinMD

   Internal Medicine Physician · Riverwoods, IL

   1,678 Medicare Part D claims (2024)

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8. 8
   Jong JinMD

   Family Medicine Physician · Chicago, IL

   1,667 Medicare Part D claims (2024)

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9. 9
   Chris ChonMD

   Internal Medicine Physician · Skokie, IL

   1,482 Medicare Part D claims (2024)

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10. 10
    Farooq AhmedM.D

    Geriatric Medicine (Family Medicine) Physician · Skokie, IL

    1,477 Medicare Part D claims (2024)

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11. 11
    Babak PazookiMD

    Endocrinology, Diabetes & Metabolism Physician · Joliet, IL

    1,330 Medicare Part D claims (2024)

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12. 12
    Bharat ShahMD

    Family Medicine Physician · Chicago, IL

    1,296 Medicare Part D claims (2024)

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13. 13
    Anne WebsterAPN

    Family Nurse Practitioner · Peoria, IL

    1,277 Medicare Part D claims (2024)

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14. 14
    Umang PatelM.D

    Internal Medicine Physician · Woodridge, IL

    1,164 Medicare Part D claims (2024)

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15. 15
    Olga LanskyM.D.

    Internal Medicine Physician · Chicago, IL

    1,146 Medicare Part D claims (2024)

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16. 16
    Philip BranshawMD

    Internal Medicine Physician · Batavia, IL

    1,119 Medicare Part D claims (2024)

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17. 17
    Sami ZabanehM.D.

    Internal Medicine Physician · Champaign, IL

    1,118 Medicare Part D claims (2024)

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18. 18
    Thomas MichalsenD.O.

    General Practice Physician · Kirkland, IL

    1,117 Medicare Part D claims (2024)

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19. 19
    Godwin D'SouzaM.D.

    Internal Medicine Physician · Chicago, IL

    1,113 Medicare Part D claims (2024)

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20. 20
    Jyothsna PallaM.D.

    Endocrinology, Diabetes & Metabolism Physician · Hazel Crest, IL

    1,107 Medicare Part D claims (2024)

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21. 21
    Sandesh KuchipudiM.D.

    Internal Medicine Physician · River Forest, IL

    1,086 Medicare Part D claims (2024)

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22. 22
    Satish BarnabasMD

    Internal Medicine Physician · Chicago, IL

    1,079 Medicare Part D claims (2024)

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23. 23
    Hamdi KhilfehM.D.

    Internal Medicine Physician · Evergreen Park, IL

    1,066 Medicare Part D claims (2024)

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24. 24
    Victoria RyvkinM.D.

    Endocrinology, Diabetes & Metabolism Physician · Mt Prospect, IL

    1,056 Medicare Part D claims (2024)

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25. 25
    Abelardo JaravaMD

    Family Medicine Physician · Chicago, IL

    1,017 Medicare Part D claims (2024)

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26. 26
    Pavinderpal GillM.D.

    Internal Medicine Physician · Taylorville, IL

    993 Medicare Part D claims (2024)

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27. 27
    Erik EnglehartM.D.

    Family Medicine Physician · Sandwich, IL

    986 Medicare Part D claims (2024)

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28. 28
    Satwant KingraMD

    Internal Medicine Physician · Evergreen Park, IL

    982 Medicare Part D claims (2024)

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29. 29
    Inessa GelfandM.D.

    Endocrinology, Diabetes & Metabolism Physician · Chicago, IL

    970 Medicare Part D claims (2024)

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30. 30
    Abdulmassih AbdulmassihM.D.

    Family Medicine Physician · Chicago, IL

    967 Medicare Part D claims (2024)

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31. 31
    Vishnu MadireddyM.D.

    Internal Medicine Physician · Riverwoods, IL

    950 Medicare Part D claims (2024)

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32. 32
    Mehul VoraMD

    Endocrinology, Diabetes & Metabolism Physician · Orland Park, IL

    934 Medicare Part D claims (2024)

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33. 33
    Lawrence AmatoM.D.

    Internal Medicine Physician · Grayslake, IL

    930 Medicare Part D claims (2024)

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34. 34
    Shannon RiderMD

    Internal Medicine Physician · Herrin, IL

    924 Medicare Part D claims (2024)

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35. 35
    Muhammad ShahzadMD

    Internal Medicine Physician · Oakbrook Terrace, IL

    921 Medicare Part D claims (2024)

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36. 36
    Marina RussoMD

    Endocrinology, Diabetes & Metabolism Physician · Springfield, IL

    899 Medicare Part D claims (2024)

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37. 37
    Darrin RayMD

    Family Medicine Physician · Gibson City, IL

    899 Medicare Part D claims (2024)

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38. 38
    Rajan PatelM.D.

    Internal Medicine Physician · Des Plaines, IL

    897 Medicare Part D claims (2024)

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39. 39
    Mohammed KaziM.D.

    Endocrinology, Diabetes & Metabolism Physician · Orland Park, IL

    850 Medicare Part D claims (2024)

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40. 40
    Asad ShahMD

    Internal Medicine Physician · Sycamore, IL

    846 Medicare Part D claims (2024)

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41. 41
    Eduard ZingerMD

    Internal Medicine Physician · Lincolnwood, IL

    839 Medicare Part D claims (2024)

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42. 42
    Haresh SawlaniM.D.

    Internal Medicine Physician · Chicago, IL

    839 Medicare Part D claims (2024)

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43. 43
    Afshan HameeduddinMD

    Family Medicine Physician · Schaumburg, IL

    829 Medicare Part D claims (2024)

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44. 44
    Poornima JayaramaiahMD

    Endocrinology, Diabetes & Metabolism Physician · Springfield, IL

    813 Medicare Part D claims (2024)

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45. 45
    Ravinderpal NandraM.D.

    Internal Medicine Physician · Plano, IL

    805 Medicare Part D claims (2024)

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46. 46
    Dennis CarrollM.D.

    Family Medicine Physician · Lincoln, IL

    803 Medicare Part D claims (2024)

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47. 47
    Marissa MyresAPRN,CNS

    Gerontology Clinical Nurse Specialist · Peoria, IL

    792 Medicare Part D claims (2024)

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48. 48
    Anthony GriffinMD

    Internal Medicine Physician · Jacksonville, IL

    787 Medicare Part D claims (2024)

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49. 49
    Yong ChunMD

    Internal Medicine Physician · Chicago, IL

    770 Medicare Part D claims (2024)

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50. 50
    Bruce WeberM.D.

    Family Medicine Physician · Gillespie, IL

    760 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 metformin. Source: CMS NPPES (June 2026).