NPI Central

Tamsulosin (Flomax) Prescribers in Illinois

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

7,855 providers in Illinois have Medicare Part D claims for tamsulosin. 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 IL
7,855
Data year
2024
Registry vintage
June 2026

tamsulosin prescribers in Illinois

Ranked by Part D claim volume.
  1. 1
    Michael AhearnMD

    Family Medicine Physician · Kewanee, IL

    2,607 Medicare Part D claims (2024)

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  2. 2
    Vivek GuptaM.D.

    Internal Medicine Physician · Chicago, IL

    2,347 Medicare Part D claims (2024)

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  3. 3
    Charles AmpaduMD

    Internal Medicine Physician · Swansea, IL

    2,307 Medicare Part D claims (2024)

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  4. 4
    Gintaras TarnauskasP.A.

    Physician Assistant · Skokie, IL

    1,862 Medicare Part D claims (2024)

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  5. 5
    Peter VaselopulosMD

    Urology Physician · Evanston, IL

    1,808 Medicare Part D claims (2024)

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  6. 6
    Chandra AnandMD

    Internal Medicine Physician · Chicago, IL

    1,671 Medicare Part D claims (2024)

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  7. 7
    Agnes Fenner

    Family Nurse Practitioner · Jacksonville, IL

    1,553 Medicare Part D claims (2024)

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  8. 8
    Steven MutchnikM.D.

    Urology Physician · Skokie, IL

    1,496 Medicare Part D claims (2024)

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  9. 9
    Godwin D'SouzaM.D.

    Internal Medicine Physician · Chicago, IL

    1,486 Medicare Part D claims (2024)

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  10. 10
    Brian EngebrechtMD

    Urology Physician · Moline, IL

    1,448 Medicare Part D claims (2024)

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  11. 11
    Ziad MusaitifDO

    Family Medicine Physician · Peoria, IL

    1,442 Medicare Part D claims (2024)

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  12. 12
    Thomas MichalsenD.O.

    General Practice Physician · Kirkland, IL

    1,422 Medicare Part D claims (2024)

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  13. 13
    Michael RossMD

    Urology Physician · Arlington Heights, IL

    1,419 Medicare Part D claims (2024)

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  14. 14
    Rajiv KandalaM.D.

    Family Medicine Physician · Chicago, IL

    1,383 Medicare Part D claims (2024)

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  15. 15
    Matthew MeadowsMD

    Urology Physician · Chicago, IL

    1,378 Medicare Part D claims (2024)

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  16. 16
    Amanda Ruyle-RyanGNP

    Gerontology Nurse Practitioner · Springfield, IL

    1,345 Medicare Part D claims (2024)

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  17. 17
    David KnowlesMD

    Urology Physician · Mount Vernon, IL

    1,328 Medicare Part D claims (2024)

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  18. 18
    James SiegertD.O.

    Urology Physician · Olympia Fields, IL

    1,321 Medicare Part D claims (2024)

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  19. 19
    Thomas BurnsM.D.

    Urology Physician · Joliet, IL

    1,289 Medicare Part D claims (2024)

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  20. 20
    Naveen DivakaruniDO

    Urology Physician · Aurora, IL

    1,288 Medicare Part D claims (2024)

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  21. 21
    John ReganM.D.

    Urology Physician · Champaign, IL

    1,254 Medicare Part D claims (2024)

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  22. 22
    Sandeep SawhneyM.D.

    Urology Physician · Joliet, IL

    1,251 Medicare Part D claims (2024)

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  23. 23
    Farooq AhmedM.D

    Geriatric Medicine (Family Medicine) Physician · Skokie, IL

    1,234 Medicare Part D claims (2024)

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  24. 24
    Philip BranshawMD

    Internal Medicine Physician · Batavia, IL

    1,228 Medicare Part D claims (2024)

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  25. 25
    Luke FrederickMD

    Urology Physician · Rockford, IL

    1,224 Medicare Part D claims (2024)

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  26. 26
    Anastasia KovalaskeNP

    Nurse Practitioner · Bloomington, IL

    1,217 Medicare Part D claims (2024)

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  27. 27
    Steven RosenPA

    Physician Assistant · Quincy, IL

    1,208 Medicare Part D claims (2024)

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  28. 28
    Peter TekD.O.

    Urology Physician · Joliet, IL

    1,205 Medicare Part D claims (2024)

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  29. 29
    Tom KleinMD

    Internal Medicine Physician · Riverwoods, IL

    1,198 Medicare Part D claims (2024)

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  30. 30
    Parin PatelDO

    Urology Physician · Champaign, IL

    1,172 Medicare Part D claims (2024)

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  31. 31
    George SosenkoMD

    Urology Physician · Downers Grove, IL

    1,166 Medicare Part D claims (2024)

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  32. 32
    Robert SeoMD

    Urology Physician · Naperville, IL

    1,107 Medicare Part D claims (2024)

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  33. 33
    Nicole SoperAPN FNP-BC

    Family Nurse Practitioner · Decatur, IL

    1,101 Medicare Part D claims (2024)

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  34. 34
    David GuthmanM.D.

    Urology Physician · Arlington Heights, IL

    1,096 Medicare Part D claims (2024)

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  35. 35
    Nathan BryantAPN

    Nurse Practitioner · Peoria, IL

    1,095 Medicare Part D claims (2024)

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  36. 36
    Mark BrandtMD

    Urology Physician · Park Ridge, IL

    1,084 Medicare Part D claims (2024)

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  37. 37
    Sangtae ParkMD

    Urology Physician · Skokie, IL

    1,079 Medicare Part D claims (2024)

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  38. 38
    Ted VellosM.D.

    Urology Physician · Orland Park, IL

    1,031 Medicare Part D claims (2024)

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  39. 39
    Safi MohammedDO

    Urology Physician · Aurora, IL

    1,020 Medicare Part D claims (2024)

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  40. 40
    Sutchin PatelMD

    Urology Physician · Gurnee, IL

    1,004 Medicare Part D claims (2024)

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  41. 41
    Daniel SchneiderM.D.

    Urology Physician · Quincy, IL

    996 Medicare Part D claims (2024)

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  42. 42
    Samer TotonchiD.O.

    Urology Physician · Berwyn, IL

    984 Medicare Part D claims (2024)

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  43. 43
    Ning WuM.D.

    Urology Physician · Lake Barrington, IL

    981 Medicare Part D claims (2024)

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  44. 44
    Eric ChuangM.D.

    Internal Medicine Physician · Chicago, IL

    980 Medicare Part D claims (2024)

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  45. 45
    Darrin RayMD

    Family Medicine Physician · Gibson City, IL

    977 Medicare Part D claims (2024)

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  46. 46
    Angie YocomAPN BC FNP

    Nurse Practitioner · Effingham, IL

    971 Medicare Part D claims (2024)

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  47. 47
    James RybakM.D.

    Urology Physician · Fairview Heights, IL

    966 Medicare Part D claims (2024)

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  48. 48
    Glen YangM.D.

    Urology Physician · Urbana, IL

    966 Medicare Part D claims (2024)

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  49. 49
    Benjamin LeakM.D.

    Urology Physician · Bloomington, IL

    966 Medicare Part D claims (2024)

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  50. 50
    Jeremy GoodPA

    Physician Assistant · Champaign, IL

    960 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 tamsulosin. Source: CMS NPPES (June 2026).