NPI Central

Doctors Who Treat Unexplained Weight Loss in Illinois

Providers in Illinois whose specialty's scope covers unexplained weight loss— ranked by profile completeness & registry tenure, notby quality, outcomes, or who is "best".

16,923 active providers in Illinois have a primary specialty that treats unexplained weight loss. We assert that these specialties treat unexplained weight loss, 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 IL
16,923
Cities listed
40
Registry vintage
June 2026

Unexplained Weight Loss specialists in Illinois

Top 50 of 16,923
  1. 1

    Internal Medicine Physician · Naperville, IL

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  2. 2

    Internal Medicine Physician · Lake Forest, IL

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  3. 3

    Family Medicine Physician · Chicago, IL

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

    Internal Medicine Physician · Chicago, IL

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  5. 5

    Family Medicine Physician · Chicago, IL

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  6. 6

    Family Medicine Physician · Warrenville, IL

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  7. 7

    Family Medicine Physician · Hickory Hills, IL

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  8. 8

    Internal Medicine Physician · Springfield, IL

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  9. 9

    Family Medicine Physician · Chicago, IL

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  10. 10

    Internal Medicine Physician · Buffalo Grove, IL

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  11. 11

    Internal Medicine Physician · Addison, IL

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  12. 12

    Internal Medicine Physician · Aurora, IL

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  13. 13

    Internal Medicine Physician · Arlington Heights, IL

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  14. 14

    Family Medicine Physician · Hazel Crest, IL

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  15. 15

    Internal Medicine Physician · Winnetka, IL

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  16. 16

    Internal Medicine Physician · Chicago, IL

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  17. 17

    Family Medicine Physician · Lincolnwood, IL

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  18. 18

    Internal Medicine Physician · Urbana, IL

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  19. 19
    Keri FairM.D., PH.D.

    Family Medicine Physician · Chicago, IL

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  20. 20

    Internal Medicine Physician · Hinsdale, IL

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  21. 21

    Family Medicine Physician · Rockford, IL

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  22. 22

    Internal Medicine Physician · Oak Lawn, IL

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  23. 23

    Internal Medicine Physician · Chicago, IL

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  24. 24

    Family Medicine Physician · Frankfort, IL

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  25. 25

    Internal Medicine Physician · Oak Park, IL

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  26. 26

    Internal Medicine Physician · Chicago, IL

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  27. 27

    Internal Medicine Physician · Oak Park, IL

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  28. 28

    Family Medicine Physician · Belleville, IL

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  29. 29

    Internal Medicine Physician · Havana, IL

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  30. 30

    Internal Medicine Physician · Chicago, IL

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  31. 31

    Family Medicine Physician · Chicago, IL

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  32. 32

    Internal Medicine Physician · Chicago, IL

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  33. 33

    Internal Medicine Physician · Naperville, IL

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  34. 34

    Family Medicine Physician · Chicago, IL

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  35. 35

    Family Medicine Physician · Chicago, IL

    Approximate (ZIP-level)View full profile & map →
  36. 36

    Family Medicine Physician · Springfield, IL

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  37. 37

    Internal Medicine Physician · Oak Lawn, IL

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  38. 38

    Internal Medicine Physician · Wilmette, IL

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  39. 39

    Internal Medicine Physician · Chicago, IL

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  40. 40

    Family Medicine Physician · Lombard, IL

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  41. 41

    Internal Medicine Physician · Rochelle, IL

    Approximate (ZIP-level)View full profile & map →
  42. 42

    Internal Medicine Physician · Melrose Park, IL

    Street-level locationView full profile & map →
  43. 43

    Internal Medicine Physician · North Riverside, IL

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  44. 44

    Family Medicine Physician · Rockford, IL

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  45. 45

    Family Medicine Physician · Champaign, IL

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  46. 46

    Internal Medicine Physician · Bolingbrook, IL

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  47. 47

    Internal Medicine Physician · Chicago, IL

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

    Family Medicine Physician · South Elgin, IL

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  49. 49

    Internal Medicine Physician · Rock Island, IL

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  50. 50

    Family Medicine Physician · Chicago, IL

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These are active providers in Illinois whose primary NUCC specialty treats unexplained weight loss; 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.